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Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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source-engine/game/client/viewpostprocess.cpp

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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//===========================================================================
#include "cbase.h"
#include "materialsystem/imaterialsystem.h"
#include "materialsystem/itexture.h"
#include "materialsystem/imaterialvar.h"
#include "materialsystem/imaterialsystemhardwareconfig.h"
#include "materialsystem/materialsystem_config.h"
#include "tier1/callqueue.h"
#include "colorcorrectionmgr.h"
#include "view_scene.h"
#include "c_world.h"
#include "bitmap/tgawriter.h"
#include "filesystem.h"
#include "tier0/vprof.h"
#include "proxyentity.h"
//-----------------------------------------------------------------------------
// Globals
//-----------------------------------------------------------------------------
// mapmaker controlled autoexposure
bool g_bUseCustomAutoExposureMin = false;
bool g_bUseCustomAutoExposureMax = false;
bool g_bUseCustomBloomScale = false;
float g_flCustomAutoExposureMin = 0;
float g_flCustomAutoExposureMax = 0;
float g_flCustomBloomScale = 0.0f;
float g_flCustomBloomScaleMinimum = 0.0f;
bool g_bFlashlightIsOn = false;
// hdr parameters
ConVar mat_bloomscale( "mat_bloomscale", "1" );
ConVar mat_hdr_level( "mat_hdr_level", "2", FCVAR_ARCHIVE );
ConVar mat_bloomamount_rate( "mat_bloomamount_rate", "0.05f", FCVAR_CHEAT );
static ConVar debug_postproc( "mat_debug_postprocessing_effects", "0", FCVAR_NONE, "0 = off, 1 = show post-processing passes in quadrants of the screen, 2 = only apply post-processing to the centre of the screen" );
static ConVar split_postproc( "mat_debug_process_halfscreen", "0", FCVAR_CHEAT );
static ConVar mat_postprocessing_combine( "mat_postprocessing_combine", "1", FCVAR_NONE, "Combine bloom, software anti-aliasing and color correction into one post-processing pass" );
static ConVar mat_dynamic_tonemapping( "mat_dynamic_tonemapping", "1", FCVAR_CHEAT );
static ConVar mat_show_ab_hdr( "mat_show_ab_hdr", "0" );
static ConVar mat_tonemapping_occlusion_use_stencil( "mat_tonemapping_occlusion_use_stencil", "0" );
ConVar mat_debug_autoexposure("mat_debug_autoexposure","0", FCVAR_CHEAT);
static ConVar mat_autoexposure_max( "mat_autoexposure_max", "2" );
static ConVar mat_autoexposure_min( "mat_autoexposure_min", "0.5" );
static ConVar mat_show_histogram( "mat_show_histogram", "0" );
ConVar mat_hdr_tonemapscale( "mat_hdr_tonemapscale", "1.0", FCVAR_CHEAT );
ConVar mat_hdr_uncapexposure( "mat_hdr_uncapexposure", "0", FCVAR_CHEAT );
ConVar mat_force_bloom("mat_force_bloom","0", FCVAR_CHEAT);
ConVar mat_disable_bloom("mat_disable_bloom","0");
ConVar mat_debug_bloom("mat_debug_bloom","0", FCVAR_CHEAT);
ConVar mat_accelerate_adjust_exposure_down( "mat_accelerate_adjust_exposure_down", "3.0", FCVAR_CHEAT );
ConVar mat_hdr_manual_tonemap_rate( "mat_hdr_manual_tonemap_rate", "1.0" );
// fudge factor to make non-hdr bloom more closely match hdr bloom. Because of auto-exposure, high
// bloomscales don't blow out as much in hdr. this factor was derived by comparing images in a
// reference scene.
ConVar mat_non_hdr_bloom_scalefactor("mat_non_hdr_bloom_scalefactor",".3");
// Apply addition scale to the final bloom scale
static ConVar mat_bloom_scalefactor_scalar( "mat_bloom_scalefactor_scalar", "1.0" );
//ConVar mat_exposure_center_region_x( "mat_exposure_center_region_x","0.75", FCVAR_CHEAT );
//ConVar mat_exposure_center_region_y( "mat_exposure_center_region_y","0.80", FCVAR_CHEAT );
//ConVar mat_exposure_center_region_x_flashlight( "mat_exposure_center_region_x_flashlight","0.33", FCVAR_CHEAT );
//ConVar mat_exposure_center_region_y_flashlight( "mat_exposure_center_region_y_flashlight","0.33", FCVAR_CHEAT );
ConVar mat_exposure_center_region_x( "mat_exposure_center_region_x","0.9", FCVAR_CHEAT );
ConVar mat_exposure_center_region_y( "mat_exposure_center_region_y","0.85", FCVAR_CHEAT );
ConVar mat_exposure_center_region_x_flashlight( "mat_exposure_center_region_x_flashlight","0.9", FCVAR_CHEAT );
ConVar mat_exposure_center_region_y_flashlight( "mat_exposure_center_region_y_flashlight","0.85", FCVAR_CHEAT );
ConVar mat_tonemap_algorithm( "mat_tonemap_algorithm", "1", FCVAR_CHEAT, "0 = Original Algorithm 1 = New Algorithm" );
ConVar mat_tonemap_percent_target( "mat_tonemap_percent_target", "60.0", FCVAR_CHEAT );
ConVar mat_tonemap_percent_bright_pixels( "mat_tonemap_percent_bright_pixels", "2.0", FCVAR_CHEAT );
ConVar mat_tonemap_min_avglum( "mat_tonemap_min_avglum", "3.0", FCVAR_CHEAT );
ConVar mat_fullbright( "mat_fullbright", "0", FCVAR_CHEAT );
extern ConVar localplayer_visionflags;
enum PostProcessingCondition {
PPP_ALWAYS,
PPP_IF_COND_VAR,
PPP_IF_NOT_COND_VAR
};
struct PostProcessingPass {
PostProcessingCondition ppp_test;
ConVar const *cvar_to_test;
char const *material_name; // terminate list with null
char const *dest_rendering_target;
char const *src_rendering_target; // can be null. needed for source scaling
int xdest_scale,ydest_scale; // allows scaling down
int xsrc_scale,ysrc_scale; // allows scaling down
CMaterialReference m_mat_ref; // so we don't have to keep searching
};
#define PPP_PROCESS_PARTIAL_SRC(srcmatname,dest_rt_name,src_tname,scale) \
{PPP_ALWAYS,0,srcmatname,dest_rt_name,src_tname,1,1,scale,scale}
#define PPP_PROCESS_PARTIAL_DEST(srcmatname,dest_rt_name,src_tname,scale) \
{PPP_ALWAYS,0,srcmatname,dest_rt_name,src_tname,scale,scale,1,1}
#define PPP_PROCESS_PARTIAL_SRC_PARTIAL_DEST(srcmatname,dest_rt_name,src_tname,srcscale,destscale) \
{PPP_ALWAYS,0,srcmatname,dest_rt_name,src_tname,destscale,destscale,srcscale,srcscale}
#define PPP_END {PPP_ALWAYS,0,NULL,NULL,0,0,0,0,0}
#define PPP_PROCESS(srcmatname,dest_rt_name) {PPP_ALWAYS,0,srcmatname,dest_rt_name,0,1,1,1,1}
#define PPP_PROCESS_IF_CVAR(cvarptr,srcmatname,dest_rt_name) \
{PPP_IF_COND_VAR,cvarptr,srcmatname,dest_rt_name,0,1,1,1,1}
#define PPP_PROCESS_IF_NOT_CVAR(cvarptr,srcmatname,dest_rt_name) \
{PPP_IF_NOT_COND_VAR,cvarptr,srcmatname,dest_rt_name,0,1,1,1,1}
#define PPP_PROCESS_IF_NOT_CVAR_SRCTEXTURE(cvarptr,srcmatname,src_tname,dest_rt_name) \
{PPP_IF_NOT_COND_VAR,cvarptr,srcmatname,dest_rt_name,src_tname,1,1,1,1}
#define PPP_PROCESS_IF_CVAR_SRCTEXTURE(cvarptr,srcmatname,src_txtrname,dest_rt_name) \
{PPP_IF_COND_VAR,cvarptr,srcmatname,dest_rt_name,src_txtrname,1,1,1,1}
#define PPP_PROCESS_SRCTEXTURE(srcmatname,src_tname,dest_rt_name) \
{PPP_ALWAYS,0,srcmatname,dest_rt_name,src_tname,1,1,1,1}
struct ClipBox
{
int m_minx, m_miny;
int m_maxx, m_maxy;
};
static void DrawClippedScreenSpaceRectangle(
IMaterial *pMaterial,
int destx, int desty,
int width, int height,
float src_texture_x0, float src_texture_y0, // which texel you want to appear at
// destx/y
float src_texture_x1, float src_texture_y1, // which texel you want to appear at
// destx+width-1, desty+height-1
int src_texture_width, int src_texture_height, // needed for fixup
ClipBox const *clipbox,
void *pClientRenderable = NULL )
{
if (clipbox)
{
if ( (destx > clipbox->m_maxx ) || ( desty > clipbox->m_maxy ))
return;
if ( (destx + width - 1 < clipbox->m_minx ) || ( desty + height - 1 < clipbox->m_miny ))
return;
// left clip
if ( destx < clipbox->m_minx )
{
src_texture_x0 = FLerp( src_texture_x0, src_texture_x1, destx, destx + width - 1, clipbox->m_minx );
width -= ( clipbox->m_minx - destx );
destx = clipbox->m_minx;
}
// top clip
if ( desty < clipbox->m_miny )
{
src_texture_y0 = FLerp( src_texture_y0, src_texture_y1, desty, desty + height - 1, clipbox->m_miny );
height -= ( clipbox->m_miny - desty );
desty = clipbox->m_miny;
}
// right clip
if ( destx + width - 1 > clipbox->m_maxx )
{
src_texture_x1 = FLerp( src_texture_x0, src_texture_x1, destx, destx + width - 1, clipbox->m_maxx );
width = clipbox->m_maxx - destx;
}
// bottom clip
if ( desty + height - 1 > clipbox->m_maxy )
{
src_texture_y1 = FLerp( src_texture_y0, src_texture_y1, desty, desty + height - 1, clipbox->m_maxy );
height = clipbox->m_maxy - desty;
}
}
CMatRenderContextPtr pRenderContext( materials );
pRenderContext->DrawScreenSpaceRectangle( pMaterial, destx, desty, width, height, src_texture_x0,
src_texture_y0, src_texture_x1, src_texture_y1,
src_texture_width, src_texture_height, pClientRenderable );
}
void ApplyPostProcessingPasses(PostProcessingPass *pass_list, // table of effects to apply
ClipBox const *clipbox=0, // clipping box for these effects
ClipBox *dest_coords_out=0) // receives dest coords of last blit
{
CMatRenderContextPtr pRenderContext( materials );
ITexture *pSaveRenderTarget = pRenderContext->GetRenderTarget();
int pcount=0;
if ( debug_postproc.GetInt() == 1 )
{
pRenderContext->SetRenderTarget(NULL);
int dest_width,dest_height;
pRenderContext->GetRenderTargetDimensions( dest_width, dest_height );
pRenderContext->Viewport( 0, 0, dest_width, dest_height );
pRenderContext->ClearColor3ub(255,0,0);
// pRenderContext->ClearBuffers(true,true);
}
while(pass_list->material_name)
{
bool do_it=true;
switch(pass_list->ppp_test)
{
case PPP_IF_COND_VAR:
do_it=(pass_list->cvar_to_test)->GetBool();
break;
case PPP_IF_NOT_COND_VAR:
do_it=! ((pass_list->cvar_to_test)->GetBool());
break;
}
if ((pass_list->dest_rendering_target==0) && (debug_postproc.GetInt() == 1))
do_it=0;
if (do_it)
{
ClipBox const *cb=0;
if (pass_list->dest_rendering_target==0)
{
cb=clipbox;
}
IMaterial *src_mat=pass_list->m_mat_ref;
if (! src_mat)
{
src_mat=materials->FindMaterial(pass_list->material_name,
TEXTURE_GROUP_OTHER,true);
if (src_mat)
{
pass_list->m_mat_ref.Init(src_mat);
}
}
if (pass_list->dest_rendering_target)
{
ITexture *dest_rt=materials->FindTexture(pass_list->dest_rendering_target,
TEXTURE_GROUP_RENDER_TARGET );
pRenderContext->SetRenderTarget( dest_rt);
}
else
{
pRenderContext->SetRenderTarget( NULL );
}
int dest_width,dest_height;
pRenderContext->GetRenderTargetDimensions( dest_width, dest_height );
pRenderContext->Viewport( 0, 0, dest_width, dest_height );
dest_width/=pass_list->xdest_scale;
dest_height/=pass_list->ydest_scale;
if (pass_list->src_rendering_target)
{
ITexture *src_rt=materials->FindTexture(pass_list->src_rendering_target,
TEXTURE_GROUP_RENDER_TARGET );
int src_width=src_rt->GetActualWidth();
int src_height=src_rt->GetActualHeight();
int ssrc_width=(src_width-1)/pass_list->xsrc_scale;
int ssrc_height=(src_height-1)/pass_list->ysrc_scale;
DrawClippedScreenSpaceRectangle(
src_mat,0,0,dest_width,dest_height,
0,0,ssrc_width,ssrc_height,src_width,src_height,cb);
if ((pass_list->dest_rendering_target) && (debug_postproc.GetInt() == 1))
{
pRenderContext->SetRenderTarget(NULL);
int row=pcount/2;
int col=pcount %2;
int vdest_width,vdest_height;
pRenderContext->GetRenderTargetDimensions( vdest_width, vdest_height );
pRenderContext->Viewport( 0, 0, vdest_width, vdest_height );
pRenderContext->DrawScreenSpaceRectangle(
src_mat,col*400,200+row*300,dest_width,dest_height,
0,0,ssrc_width,ssrc_height,src_width,src_height);
}
}
else
{
// just draw the whole source
if ((pass_list->dest_rendering_target==0) && split_postproc.GetInt())
{
DrawClippedScreenSpaceRectangle(src_mat,0,0,dest_width/2,dest_height,
0,0,.5,1,1,1,cb);
}
else
{
DrawClippedScreenSpaceRectangle(src_mat,0,0,dest_width,dest_height,
0,0,1,1,1,1,cb);
}
if ((pass_list->dest_rendering_target) && (debug_postproc.GetInt() == 1))
{
pRenderContext->SetRenderTarget(NULL);
int row=pcount/4;
int col=pcount %4;
//int dest_width,dest_height;
pRenderContext->GetRenderTargetDimensions( dest_width, dest_height );
pRenderContext->Viewport( 0, 0, dest_width, dest_height );
DrawClippedScreenSpaceRectangle(src_mat,10+col*220,10+row*220,
200,200,
0,0,1,1,1,1,cb);
}
}
if (dest_coords_out)
{
dest_coords_out->m_minx=0;
dest_coords_out->m_maxx=dest_width-1;
dest_coords_out->m_miny=0;
dest_coords_out->m_maxy=dest_height-1;
}
}
pass_list++;
pcount++;
}
pRenderContext->SetRenderTarget(pSaveRenderTarget);
}
PostProcessingPass HDRFinal_Float[] =
{
PPP_PROCESS_SRCTEXTURE( "dev/downsample", "_rt_FullFrameFB", "_rt_SmallFB0" ),
PPP_PROCESS_SRCTEXTURE( "dev/blurfilterx", "_rt_SmallFB0", "_rt_SmallFB1" ),
PPP_PROCESS_SRCTEXTURE( "dev/blurfiltery", "_rt_SmallFB1", "_rt_SmallFB0" ),
PPP_PROCESS_SRCTEXTURE("dev/floattoscreen_combine","_rt_FullFrameFB",NULL),
PPP_END
};
PostProcessingPass HDRFinal_Float_NoBloom[] =
{
PPP_PROCESS_SRCTEXTURE("dev/copyfullframefb", "_rt_FullFrameFB",NULL),
PPP_END
};
PostProcessingPass HDRSimulate_NonHDR[] =
{
PPP_PROCESS("dev/copyfullframefb_vanilla",NULL),
PPP_END
};
static void SetRenderTargetAndViewPort(ITexture *rt)
{
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s", __FUNCTION__ );
CMatRenderContextPtr pRenderContext( materials );
pRenderContext->SetRenderTarget(rt);
pRenderContext->Viewport(0,0,rt->GetActualWidth(),rt->GetActualHeight());
}
#define FILTER_KERNEL_SLOP 20
// Note carefully about the downsampling: the first downsampling samples from the full rendertarget
// down to a temp. When doing this sampling, the texture source clamping will take care of the out
// of bounds sampling done because of the filter kernels's width. However, on any of the subsequent
// sampling operations, we will be sampling from a partially filled render target. So, texture
// coordinate clamping cannot help us here. So, we need to always render a few more pixels to the
// destination than we actually intend to, so as to replicate the border pixels so that garbage
// pixels do not get sucked into the sampling. To deal with this, we always add FILTER_KERNEL_SLOP
// to our widths/heights if there is room for them in the destination.
static void DrawScreenSpaceRectangleWithSlop(
ITexture *dest_rt,
IMaterial *pMaterial,
int destx, int desty,
int width, int height,
float src_texture_x0, float src_texture_y0, // which texel you want to appear at
// destx/y
float src_texture_x1, float src_texture_y1, // which texel you want to appear at
// destx+width-1, desty+height-1
int src_texture_width, int src_texture_height // needed for fixup
)
{
// add slop
int slopwidth = width + FILTER_KERNEL_SLOP; //min(dest_rt->GetActualWidth()-destx,width+FILTER_KERNEL_SLOP);
int slopheight = height + FILTER_KERNEL_SLOP; //min(dest_rt->GetActualHeight()-desty,height+FILTER_KERNEL_SLOP);
// adjust coordinates for slop
src_texture_x1 = FLerp( src_texture_x0, src_texture_x1, destx, destx + width - 1, destx + slopwidth - 1 );
src_texture_y1 = FLerp( src_texture_y0, src_texture_y1, desty, desty + height - 1, desty + slopheight - 1 );
width = slopwidth;
height = slopheight;
CMatRenderContextPtr pRenderContext( materials );
pRenderContext->DrawScreenSpaceRectangle( pMaterial, destx, desty, width, height,
src_texture_x0, src_texture_y0,
src_texture_x1, src_texture_y1,
src_texture_width, src_texture_height );
}
enum Histogram_entry_state_t
{
HESTATE_INITIAL=0,
HESTATE_FIRST_QUERY_IN_FLIGHT,
HESTATE_QUERY_IN_FLIGHT,
HESTATE_QUERY_DONE,
};
#define N_LUMINANCE_RANGES 31
#define N_LUMINANCE_RANGES_NEW 17
#define MAX_QUERIES_PER_FRAME 1
class CHistogram_entry_t
{
public:
Histogram_entry_state_t m_state;
OcclusionQueryObjectHandle_t m_occ_handle; // the occlusion query handle
int m_frame_queued; // when this query was last queued
int m_npixels; // # of pixels this histogram represents
int m_npixels_in_range;
float m_min_lum, m_max_lum; // the luminance range this entry was queried with
float m_minx, m_miny, m_maxx, m_maxy; // range is 0..1 in fractions of the screen
bool ContainsValidData( void )
{
return ( m_state == HESTATE_QUERY_DONE ) || ( m_state == HESTATE_QUERY_IN_FLIGHT );
}
void IssueQuery( int frm_num );
};
void CHistogram_entry_t::IssueQuery( int frm_num )
{
CMatRenderContextPtr pRenderContext( materials );
if ( !m_occ_handle )
{
m_occ_handle = pRenderContext->CreateOcclusionQueryObject();
}
int xl, yl, dest_width, dest_height;
pRenderContext->GetViewport( xl, yl, dest_width, dest_height );
// Find min and max gamma-space text range
float flTestRangeMin = m_min_lum;
float flTestRangeMax = ( m_max_lum == 1.0f ) ? 10000.0f : m_max_lum; // Count all pixels >1.0 as 1.0
// First, set stencil bits where the colors match
IMaterial *test_mat=materials->FindMaterial( "dev/lumcompare", TEXTURE_GROUP_OTHER, true );
IMaterialVar *pMinVar = test_mat->FindVar( "$C0_X", NULL );
pMinVar->SetFloatValue( flTestRangeMin );
IMaterialVar *pMaxVar = test_mat->FindVar( "$C0_Y", NULL );
pMaxVar->SetFloatValue( flTestRangeMax );
int scrx_min = FLerp( xl, ( xl + dest_width - 1 ), 0, 1, m_minx );
int scrx_max = FLerp( xl, ( xl + dest_width - 1 ), 0, 1, m_maxx );
int scry_min = FLerp( yl, ( yl + dest_height - 1 ), 0, 1, m_miny );
int scry_max = FLerp( yl, ( yl + dest_height - 1 ), 0, 1, m_maxy );
float exposure_width_scale, exposure_height_scale;
// now, shrink region of interest if the flashlight is on
if ( g_bFlashlightIsOn )
{
exposure_width_scale = ( 0.5f * ( 1.0f - mat_exposure_center_region_x_flashlight.GetFloat() ) );
exposure_height_scale = ( 0.5f * ( 1.0f - mat_exposure_center_region_y_flashlight.GetFloat() ) );
}
else
{
exposure_width_scale = ( 0.5f * ( 1.0f - mat_exposure_center_region_x.GetFloat() ) );
exposure_height_scale = ( 0.5f * ( 1.0f - mat_exposure_center_region_y.GetFloat() ) );
}
int skip_edgex = ( 1 + scrx_max - scrx_min ) * exposure_width_scale;
int skip_edgey = ( 1 + scry_max - scry_min ) * exposure_height_scale;
// now, do luminance compare
float tscale = 1.0;
if ( g_pMaterialSystemHardwareConfig->GetHDRType() == HDR_TYPE_FLOAT )
{
tscale = pRenderContext->GetToneMappingScaleLinear().x;
}
IMaterialVar *use_t_scale = test_mat->FindVar( "$C0_Z", NULL );
use_t_scale->SetFloatValue( tscale );
m_npixels = ( 1 + scrx_max - scrx_min ) * ( 1 + scry_max - scry_min );
if ( mat_tonemapping_occlusion_use_stencil.GetInt() )
{
pRenderContext->SetStencilWriteMask( 1 );
// AV - We don't need to clear stencil here because it's already been cleared at the beginning of the frame
//pRenderContext->ClearStencilBufferRectangle( scrx_min, scry_min, scrx_max, scry_max, 0 );
pRenderContext->SetStencilEnable( true );
pRenderContext->SetStencilPassOperation( STENCILOPERATION_REPLACE );
pRenderContext->SetStencilCompareFunction( STENCILCOMPARISONFUNCTION_ALWAYS );
pRenderContext->SetStencilFailOperation( STENCILOPERATION_KEEP );
pRenderContext->SetStencilZFailOperation( STENCILOPERATION_KEEP );
pRenderContext->SetStencilReferenceValue( 1 );
}
else
{
pRenderContext->BeginOcclusionQueryDrawing( m_occ_handle );
}
scrx_min += skip_edgex;
scry_min += skip_edgey;
scrx_max -= skip_edgex;
scry_max -= skip_edgey;
pRenderContext->DrawScreenSpaceRectangle( test_mat,
scrx_min, scry_min,
1 + scrx_max - scrx_min,
1 + scry_max - scry_min,
scrx_min, scry_min,
scrx_max, scry_max,
dest_width, dest_height);
if ( mat_tonemapping_occlusion_use_stencil.GetInt() )
{
// now, start counting how many pixels had their stencil bit set via an occlusion query
pRenderContext->BeginOcclusionQueryDrawing( m_occ_handle );
// now, issue an occlusion query using stencil as the mask
pRenderContext->SetStencilEnable( true );
pRenderContext->SetStencilTestMask( 1 );
pRenderContext->SetStencilPassOperation( STENCILOPERATION_KEEP );
pRenderContext->SetStencilCompareFunction( STENCILCOMPARISONFUNCTION_EQUAL );
pRenderContext->SetStencilFailOperation( STENCILOPERATION_KEEP );
pRenderContext->SetStencilZFailOperation( STENCILOPERATION_KEEP );
pRenderContext->SetStencilReferenceValue( 1 );
IMaterial *stest_mat=materials->FindMaterial( "dev/no_pixel_write", TEXTURE_GROUP_OTHER, true);
pRenderContext->DrawScreenSpaceRectangle( stest_mat,
scrx_min, scry_min,
1 + scrx_max - scrx_min,
1 + scry_max - scry_min,
scrx_min, scry_min,
scrx_max, scry_max,
dest_width, dest_height);
pRenderContext->SetStencilEnable( false );
}
pRenderContext->EndOcclusionQueryDrawing( m_occ_handle );
if ( m_state == HESTATE_INITIAL )
m_state = HESTATE_FIRST_QUERY_IN_FLIGHT;
else
m_state = HESTATE_QUERY_IN_FLIGHT;
m_frame_queued = frm_num;
}
#define HISTOGRAM_BAR_SIZE 200
class CLuminanceHistogramSystem
{
CHistogram_entry_t CurHistogram[N_LUMINANCE_RANGES];
int cur_query_frame;
public:
float FindLocationOfPercentBrightPixels( float flPercentBrightPixels, float flPercentTarget );
float GetTargetTonemapScalar( bool bGetIdealTargetForDebugMode );
void Update( void );
void DisplayHistogram( void );
void UpdateLuminanceRanges( void );
CLuminanceHistogramSystem(void)
{
UpdateLuminanceRanges();
}
};
void CLuminanceHistogramSystem::Update( void )
{
UpdateLuminanceRanges();
// find which histogram entries should have something done this frame
int n_queries_issued_this_frame=0;
cur_query_frame++;
int nNumRanges = N_LUMINANCE_RANGES;
if ( mat_tonemap_algorithm.GetInt() == 1 )
nNumRanges = N_LUMINANCE_RANGES_NEW;
for ( int i=0; i<nNumRanges; i++ )
{
switch ( CurHistogram[i].m_state )
{
case HESTATE_INITIAL:
if ( n_queries_issued_this_frame<MAX_QUERIES_PER_FRAME )
{
CurHistogram[i].IssueQuery(cur_query_frame);
n_queries_issued_this_frame++;
}
break;
case HESTATE_FIRST_QUERY_IN_FLIGHT:
case HESTATE_QUERY_IN_FLIGHT:
if ( cur_query_frame > CurHistogram[i].m_frame_queued + 2 )
{
CMatRenderContextPtr pRenderContext( materials );
int np = pRenderContext->OcclusionQuery_GetNumPixelsRendered(
CurHistogram[i].m_occ_handle );
if ( np !=- 1 ) // -1=query not finished. wait until
// next time
{
CurHistogram[i].m_npixels_in_range = np;
// if (mat_debug_autoexposure.GetInt())
// Warning("min=%f max=%f np = %d\n",CurHistogram[i].m_min_lum,CurHistogram[i].m_max_lum,np);
CurHistogram[i].m_state = HESTATE_QUERY_DONE;
}
}
break;
}
}
// now, issue queries for the oldest finished queries we have
while( n_queries_issued_this_frame < MAX_QUERIES_PER_FRAME )
{
nNumRanges = N_LUMINANCE_RANGES;
if ( mat_tonemap_algorithm.GetInt() == 1 )
nNumRanges = N_LUMINANCE_RANGES_NEW;
int oldest_so_far =- 1;
for( int i = 0;i < nNumRanges;i ++ )
if ( ( CurHistogram[i].m_state == HESTATE_QUERY_DONE ) &&
( ( oldest_so_far ==- 1 ) ||
( CurHistogram[i].m_frame_queued <
CurHistogram[oldest_so_far].m_frame_queued ) ) )
oldest_so_far = i;
if ( oldest_so_far ==- 1 ) // nothing to do
break;
CurHistogram[oldest_so_far].IssueQuery( cur_query_frame );
n_queries_issued_this_frame ++;
}
}
float CLuminanceHistogramSystem::FindLocationOfPercentBrightPixels( float flPercentBrightPixels, float flPercentTargetToSnapToIfInSameBin = -1.0f )
{
if ( mat_tonemap_algorithm.GetInt() == 1 ) // New algorithm
{
int nTotalValidPixels = 0;
for ( int i=0; i<N_LUMINANCE_RANGES_NEW-1; i++ )
{
if ( CurHistogram[i].ContainsValidData() )
{
nTotalValidPixels += CurHistogram[i].m_npixels_in_range;
}
}
if ( nTotalValidPixels == 0 )
{
return -1.0f;
}
// Find where percent range border is
float flTotalPercentRangeTested = 0.0f;
float flTotalPercentPixelsTested = 0.0f;
for ( int i=N_LUMINANCE_RANGES_NEW-2; i>=0; i-- ) // Start at the bright end
{
if ( !CurHistogram[i].ContainsValidData() )
return -1.0f;
float flPixelPercentNeeded = ( flPercentBrightPixels / 100.0f ) - flTotalPercentPixelsTested;
float flThisBinPercentOfTotalPixels = float( CurHistogram[i].m_npixels_in_range ) / float( nTotalValidPixels );
float flThisBinLuminanceRange = CurHistogram[i].m_max_lum - CurHistogram[i].m_min_lum;
if ( flThisBinPercentOfTotalPixels >= flPixelPercentNeeded ) // We found the bin needed
{
if ( flPercentTargetToSnapToIfInSameBin >= 0.0f )
{
if ( ( CurHistogram[i].m_min_lum <= ( flPercentTargetToSnapToIfInSameBin / 100.0f ) ) && ( CurHistogram[i].m_max_lum >= ( flPercentTargetToSnapToIfInSameBin / 100.0f ) ) )
{
// Sticky bin...We're in the same bin as the target so keep the tonemap scale where it is
return ( flPercentTargetToSnapToIfInSameBin / 100.0f );
}
}
float flPercentOfThesePixelsNeeded = flPixelPercentNeeded / flThisBinPercentOfTotalPixels;
float flPercentLocationOfBorder = 1.0f - ( flTotalPercentRangeTested + ( flThisBinLuminanceRange * flPercentOfThesePixelsNeeded ) );
flPercentLocationOfBorder = MAX( CurHistogram[i].m_min_lum, MIN( CurHistogram[i].m_max_lum, flPercentLocationOfBorder ) ); // Clamp to this bin just in case
return flPercentLocationOfBorder;
}
flTotalPercentPixelsTested += flThisBinPercentOfTotalPixels;
flTotalPercentRangeTested += flThisBinLuminanceRange;
}
return -1.0f;
}
else
{
// Don't know what to do for other algorithms yet
return -1.0f;
}
}
float CLuminanceHistogramSystem::GetTargetTonemapScalar( bool bGetIdealTargetForDebugMode = false )
{
if ( mat_tonemap_algorithm.GetInt() == 1 ) // New algorithm
{
float flPercentLocationOfTarget;
if ( bGetIdealTargetForDebugMode == true)
flPercentLocationOfTarget = FindLocationOfPercentBrightPixels( mat_tonemap_percent_bright_pixels.GetFloat() ); // Don't pass in the second arg so the scalar doesn't snap to a bin
else
flPercentLocationOfTarget = FindLocationOfPercentBrightPixels( mat_tonemap_percent_bright_pixels.GetFloat(), mat_tonemap_percent_target.GetFloat() );
if ( flPercentLocationOfTarget < 0.0f ) // This is the return error code
{
flPercentLocationOfTarget = mat_tonemap_percent_target.GetFloat() / 100.0f; // Pretend we're at the target
}
// Make sure this is > 0.0f
flPercentLocationOfTarget = MAX( 0.0001f, flPercentLocationOfTarget );
// Compute target scalar
float flTargetScalar = ( mat_tonemap_percent_target.GetFloat() / 100.0f ) / flPercentLocationOfTarget;
// Compute secondary target scalar
float flAverageLuminanceLocation = FindLocationOfPercentBrightPixels( 50.0f );
if ( flAverageLuminanceLocation > 0.0f )
{
float flTargetScalar2 = ( mat_tonemap_min_avglum.GetFloat() / 100.0f ) / flAverageLuminanceLocation;
// Only override it if it's trying to brighten the image more than the primary algorithm
if ( flTargetScalar2 > flTargetScalar )
{
flTargetScalar = flTargetScalar2;
}
}
// Apply this against last frames scalar
CMatRenderContextPtr pRenderContext( materials );
float flLastScale = pRenderContext->GetToneMappingScaleLinear().x;
flTargetScalar *= flLastScale;
flTargetScalar = MAX( 0.001f, flTargetScalar );
return flTargetScalar;
}
else // Original tonemapping
{
float average_luminance = 0.5f;
float total = 0;
int total_pixels = 0;
float scale_value = 1.0;
if ( CurHistogram[N_LUMINANCE_RANGES-1].ContainsValidData() )
{
scale_value = CurHistogram[N_LUMINANCE_RANGES-1].m_npixels * ( 1.0f / CurHistogram[N_LUMINANCE_RANGES-1].m_npixels_in_range );
if ( mat_debug_autoexposure.GetInt() )
{
engine->Con_NPrintf( 20, "Scale value = %f", scale_value );
//Warning( "scale value=%f\n", scale_value );
}
}
else
average_luminance = 0.5;
if ( !IsFinite( scale_value ) )
scale_value = 1.0f;
for ( int i=0; i<N_LUMINANCE_RANGES-1; i++ )
{
if ( CurHistogram[i].ContainsValidData() )
{
total += scale_value * CurHistogram[i].m_npixels_in_range * AVG( CurHistogram[i].m_min_lum, CurHistogram[i].m_max_lum );
total_pixels += CurHistogram[i].m_npixels;
}
else
average_luminance = 0.5; // always return 0.5 until we've queried a whole frame
}
if ( total_pixels > 0 )
average_luminance = total * ( 1.0 / total_pixels );
else
average_luminance = 0.5;
// Make sure this is > 0.0f
average_luminance = MAX( 0.0001f, average_luminance );
// Compute target scalar
float flTargetScalar = 0.005 / average_luminance;
return flTargetScalar;
}
}
static float GetCurrentBloomScale( void )
{
// Use the appropriate bloom scale settings. Mapmakers's overrides the convar settings.
float flCurrentBloomScale = 1.0f;
if ( g_bUseCustomBloomScale )
{
flCurrentBloomScale = g_flCustomBloomScale;
}
else
{
flCurrentBloomScale = mat_bloomscale.GetFloat();
}
return flCurrentBloomScale;
}
static void GetExposureRange( float *flAutoExposureMin, float *flAutoExposureMax )
{
// Get min
if ( ( g_bUseCustomAutoExposureMin ) && ( g_flCustomAutoExposureMin > 0.0f ) )
{
*flAutoExposureMin = g_flCustomAutoExposureMin;
}
else
{
*flAutoExposureMin = mat_autoexposure_min.GetFloat();
}
// Get max
if ( ( g_bUseCustomAutoExposureMax ) && ( g_flCustomAutoExposureMax > 0.0f ) )
{
*flAutoExposureMax = g_flCustomAutoExposureMax;
}
else
{
*flAutoExposureMax = mat_autoexposure_max.GetFloat();
}
// Override
if ( mat_hdr_uncapexposure.GetInt() )
{
*flAutoExposureMax = 20.0f;
*flAutoExposureMin = 0.0f;
}
// Make sure min <= max
if ( *flAutoExposureMin > *flAutoExposureMax )
{
*flAutoExposureMax = *flAutoExposureMin;
}
}
void CLuminanceHistogramSystem::UpdateLuminanceRanges( void )
{
// Only update if our mode changed
static int s_nCurrentBucketAlgorithm = -1;
if ( s_nCurrentBucketAlgorithm == mat_tonemap_algorithm.GetInt() )
return;
s_nCurrentBucketAlgorithm = mat_tonemap_algorithm.GetInt();
//==================================================================//
// Force fallback to original tone mapping algorithm for these mods //
//==================================================================//
static bool s_bFirstTime = true;
if ( engine == NULL )
{
// Force this code to get hit again so we can change algorithm based on the client
s_nCurrentBucketAlgorithm = -1;
}
else if ( s_bFirstTime == true )
{
s_bFirstTime = false;
// This seems like a bad idea but it's fine for now
const char *sModsForOriginalAlgorithm[] = { "dod", "cstrike", "lostcoast", "hl1" };
for ( int i=0; i<3; i++ )
{
if ( strlen( engine->GetGameDirectory() ) >= strlen( sModsForOriginalAlgorithm[i] ) )
{
if ( stricmp( &( engine->GetGameDirectory()[strlen( engine->GetGameDirectory() ) - strlen( sModsForOriginalAlgorithm[i] )] ), sModsForOriginalAlgorithm[i] ) == 0 )
{
mat_tonemap_algorithm.SetValue( 0 ); // Original algorithm
s_nCurrentBucketAlgorithm = mat_tonemap_algorithm.GetInt();
break;
}
}
}
}
int nNumRanges = N_LUMINANCE_RANGES;
if ( mat_tonemap_algorithm.GetInt() == 1 )
nNumRanges = N_LUMINANCE_RANGES_NEW;
cur_query_frame=0;
for ( int bucket = 0; bucket < nNumRanges; bucket ++ )
{
int idx = bucket;
CHistogram_entry_t & e = CurHistogram[idx];
e.m_state = HESTATE_INITIAL;
e.m_minx = 0;
e.m_maxx = 1;
e.m_miny = 0;
e.m_maxy = 1;
if ( bucket != nNumRanges-1 ) // Last bucket is special
{
if ( mat_tonemap_algorithm.GetInt() == 0 ) // Original algorithm
{
// Use a logarithmic ramp for high range in the low range
e.m_min_lum = - 0.01 + exp( FLerp( log( .01 ), log( .01 + 1 ), 0, nNumRanges - 1, bucket ) );
e.m_max_lum = - 0.01 + exp( FLerp( log( .01 ), log( .01 + 1 ), 0, nNumRanges - 1, bucket + 1 ) );
}
else
{
// Use even distribution
e.m_min_lum = float( bucket ) / float( nNumRanges - 1 );
e.m_max_lum = float( bucket + 1 ) / float( nNumRanges - 1 );
// Use a distribution with slightly more bins in the low range
e.m_min_lum = e.m_min_lum > 0.0f ? powf( e.m_min_lum, 1.5f ) : e.m_min_lum;
e.m_max_lum = e.m_max_lum > 0.0f ? powf( e.m_max_lum, 1.5f ) : e.m_max_lum;
}
}
else
{
// The last bucket is used as a test to determine the return range for occlusion
// queries to use as a scale factor. some boards (nvidia) have their occlusion
// query return values larger when using AA.
e.m_min_lum = 0;
e.m_max_lum = 100000.0;
}
//Warning( "Bucket %d: min/max %f / %f ", bucket, e.m_min_lum, e.m_max_lum );
}
}
void CLuminanceHistogramSystem::DisplayHistogram( void )
{
bool bDrawTextThisFrame = true;
if ( IsX360() )
{
static float s_flLastTimeUpdate = 0.0f;
if ( int( gpGlobals->curtime ) - int( s_flLastTimeUpdate ) >= 2 )
{
s_flLastTimeUpdate = gpGlobals->curtime;
bDrawTextThisFrame = true;
}
else
{
bDrawTextThisFrame = false;
}
}
CMatRenderContextPtr pRenderContext( materials );
pRenderContext->PushRenderTargetAndViewport();
int nNumRanges = N_LUMINANCE_RANGES-1;
if ( mat_tonemap_algorithm.GetInt() == 1 )
nNumRanges = N_LUMINANCE_RANGES_NEW-1;
int nMaxValidPixels = 0;
int nTotalValidPixels = 0;
int nTotalGraphPixelsWide = 0;
for ( int l=0; l<nNumRanges; l++ )
{
CHistogram_entry_t &e = CurHistogram[l];
if ( e.ContainsValidData() )
{
nTotalValidPixels += e.m_npixels_in_range;
if ( e.m_npixels_in_range > nMaxValidPixels )
{
nMaxValidPixels = e.m_npixels_in_range;
}
}
int width = MAX( 1, 500 * ( e.m_max_lum - e.m_min_lum ) );
nTotalGraphPixelsWide += width + 2;
}
int xl, yl, dest_width, dest_height;
pRenderContext->GetViewport( xl, yl, dest_width, dest_height );
if ( bDrawTextThisFrame == true )
{
engine->Con_NPrintf( 17, "(All values in linear space)" );
engine->Con_NPrintf( 21, "AvgLum @ %4.2f%% mat_tonemap_min_avglum = %4.2f%% Using %d pixels of %d pixels on screen (%3d%%)",
MAX( 0.0f, FindLocationOfPercentBrightPixels( 50.0f ) ) * 100.0f, mat_tonemap_min_avglum.GetFloat(),
nTotalValidPixels, ( dest_width * dest_height ), int( float( nTotalValidPixels ) * 100.0f / float( dest_width * dest_height ) ) );
engine->Con_NPrintf( 23, "BloomScale = %4.2f mat_hdr_manual_tonemap_rate = %4.2f mat_accelerate_adjust_exposure_down = %4.2f",
GetCurrentBloomScale(), mat_hdr_manual_tonemap_rate.GetFloat(), mat_accelerate_adjust_exposure_down.GetFloat() );
}
if ( mat_tonemap_algorithm.GetInt() == 1 ) // New algorithm only
{
float vTotalPixelsAndHigher[N_LUMINANCE_RANGES];
for ( int i=0; i<nNumRanges; i++ )
{
vTotalPixelsAndHigher[i] = CurHistogram[nNumRanges-1-i].m_npixels_in_range;
if ( i > 0 )
{
vTotalPixelsAndHigher[i] += vTotalPixelsAndHigher[i-1];
}
}
/* // This code works when N_LUMINANCE_RANGES_NEW = 11
if ( bDrawTextThisFrame == true )
{
engine->Con_NPrintf( 17, "%04.2f %04.2f %04.2f %04.2f %04.2f %04.2f %04.2f %04.2f %04.2f %04.2f ",
100.0f * float( vTotalPixelsAndHigher[9] ) / float( nTotalValidPixels ),
100.0f * float( vTotalPixelsAndHigher[8] ) / float( nTotalValidPixels ),
100.0f * float( vTotalPixelsAndHigher[7] ) / float( nTotalValidPixels ),
100.0f * float( vTotalPixelsAndHigher[6] ) / float( nTotalValidPixels ),
100.0f * float( vTotalPixelsAndHigher[5] ) / float( nTotalValidPixels ),
100.0f * float( vTotalPixelsAndHigher[4] ) / float( nTotalValidPixels ),
100.0f * float( vTotalPixelsAndHigher[3] ) / float( nTotalValidPixels ),
100.0f * float( vTotalPixelsAndHigher[2] ) / float( nTotalValidPixels ),
100.0f * float( vTotalPixelsAndHigher[1] ) / float( nTotalValidPixels ),
100.0f * float( vTotalPixelsAndHigher[0] ) / float( nTotalValidPixels ) );
engine->Con_NPrintf( 15, "%04.2f %04.2f %04.2f %04.2f %04.2f %04.2f %04.2f %04.2f %04.2f %04.2f ",
100.0f * float( CurHistogram[nNumRanges-1-9].m_npixels_in_range ) / float( nTotalValidPixels ),
100.0f * float( CurHistogram[nNumRanges-1-8].m_npixels_in_range ) / float( nTotalValidPixels ),
100.0f * float( CurHistogram[nNumRanges-1-7].m_npixels_in_range ) / float( nTotalValidPixels ),
100.0f * float( CurHistogram[nNumRanges-1-6].m_npixels_in_range ) / float( nTotalValidPixels ),
100.0f * float( CurHistogram[nNumRanges-1-5].m_npixels_in_range ) / float( nTotalValidPixels ),
100.0f * float( CurHistogram[nNumRanges-1-4].m_npixels_in_range ) / float( nTotalValidPixels ),
100.0f * float( CurHistogram[nNumRanges-1-3].m_npixels_in_range ) / float( nTotalValidPixels ),
100.0f * float( CurHistogram[nNumRanges-1-2].m_npixels_in_range ) / float( nTotalValidPixels ),
100.0f * float( CurHistogram[nNumRanges-1-1].m_npixels_in_range ) / float( nTotalValidPixels ),
100.0f * float( CurHistogram[nNumRanges-1-0].m_npixels_in_range ) / float( nTotalValidPixels ) );
}
//*/
}
else
{
if ( bDrawTextThisFrame == true )
{
engine->Con_NPrintf( 17, "" );
engine->Con_NPrintf( 15, "" );
}
}
int xpStart = dest_width - nTotalGraphPixelsWide - 10;
if ( IsX360() )
{
xpStart -= 50;
}
int xp = xpStart;
for ( int l=0; l<nNumRanges; l++ )
{
int np = 0;
CHistogram_entry_t &e = CurHistogram[l];
if ( e.ContainsValidData() )
np += e.m_npixels_in_range;
int width = MAX( 1, 500 * ( e.m_max_lum - e.m_min_lum ) );
//Warning( "Bucket %d: min/max %f / %f. m_npixels_in_range=%d m_npixels=%d\n", l, e.m_min_lum, e.m_max_lum, e.m_npixels_in_range, e.m_npixels );
if ( np )
{
int height = MAX( 1, MIN( HISTOGRAM_BAR_SIZE, ( (float)np / (float)nMaxValidPixels ) * HISTOGRAM_BAR_SIZE ) );
pRenderContext->ClearColor3ub( 255, 0, 0 );
pRenderContext->Viewport( xp, 4 + HISTOGRAM_BAR_SIZE - height, width, height );
pRenderContext->ClearBuffers( true, true );
}
else
{
int height = 1;
pRenderContext->ClearColor3ub( 0, 0, 255 );
pRenderContext->Viewport( xp, 4 + HISTOGRAM_BAR_SIZE - height, width, height );
pRenderContext->ClearBuffers( true, true );
}
xp += width + 2;
}
if ( mat_tonemap_algorithm.GetInt() == 1 ) // New algorithm only
{
float flYellowTargetPixelStart = ( xpStart + ( float( nTotalGraphPixelsWide ) * mat_tonemap_percent_target.GetFloat() / 100.0f ) );
float flYellowAveragePixelStart = ( xpStart + ( float( nTotalGraphPixelsWide ) * mat_tonemap_min_avglum.GetFloat() / 100.0f ) );
float flTargetPixelStart = ( xpStart + ( float( nTotalGraphPixelsWide ) * FindLocationOfPercentBrightPixels( mat_tonemap_percent_bright_pixels.GetFloat(), mat_tonemap_percent_target.GetFloat() ) ) );
float flAveragePixelStart = ( xpStart + ( float( nTotalGraphPixelsWide ) * FindLocationOfPercentBrightPixels( 50.0f ) ) );
// Draw target yellow border bar
int height = HISTOGRAM_BAR_SIZE;
// Green is current percent target location
pRenderContext->Viewport( flYellowTargetPixelStart, 4 + HISTOGRAM_BAR_SIZE - height, 4, height );
pRenderContext->ClearColor3ub( 200, 200, 0 );
pRenderContext->ClearBuffers( true, true );
pRenderContext->Viewport( flTargetPixelStart, 4 + HISTOGRAM_BAR_SIZE - height, 4, height );
pRenderContext->ClearColor3ub( 0, 255, 0 );
pRenderContext->ClearBuffers( true, true );
// Blue is average luminance location
pRenderContext->Viewport( flYellowAveragePixelStart, 4 + HISTOGRAM_BAR_SIZE - height, 4, height );
pRenderContext->ClearColor3ub( 200, 200, 0 );
pRenderContext->ClearBuffers( true, true );
pRenderContext->Viewport( flAveragePixelStart, 4 + HISTOGRAM_BAR_SIZE - height, 4, height );
pRenderContext->ClearColor3ub( 0, 200, 200 );
pRenderContext->ClearBuffers( true, true );
}
// Show actual tonemap value
if ( 1 )
{
float flAutoExposureMin;
float flAutoExposureMax;
GetExposureRange( &flAutoExposureMin, &flAutoExposureMax );
float flBarWidth = 600.0f;
float flBarStart = dest_width - flBarWidth - 10.0f;
if ( IsX360() )
{
flBarStart -= 50;
}
pRenderContext->Viewport( flBarStart, 4 + HISTOGRAM_BAR_SIZE - 4 + 75, flBarWidth, 4 );
pRenderContext->ClearColor3ub( 200, 200, 200 );
pRenderContext->ClearBuffers( true, true );
pRenderContext->Viewport( flBarStart, 4 + HISTOGRAM_BAR_SIZE - 4 + 75 + 1, flBarWidth, 2 );
pRenderContext->ClearColor3ub( 0, 0, 0 );
pRenderContext->ClearBuffers( true, true );
pRenderContext->Viewport( flBarStart + ( flBarWidth * ( ( pRenderContext->GetToneMappingScaleLinear().x - flAutoExposureMin ) / ( flAutoExposureMax - flAutoExposureMin ) ) ),
4 + HISTOGRAM_BAR_SIZE - 4 + 75 - 6, 4, 16 );
pRenderContext->ClearColor3ub( 255, 0, 0 );
pRenderContext->ClearBuffers( true, true );
if ( bDrawTextThisFrame == true )
{
if ( IsX360() )
engine->Con_NPrintf( 26, "Min: %.2f Max: %.2f", flAutoExposureMin, flAutoExposureMax );
else
engine->Con_NPrintf( 26, "%.2f %.2f %.2f", flAutoExposureMin, ( flAutoExposureMax + flAutoExposureMin ) / 2.0f, flAutoExposureMax );
}
}
// Last bar doesn't clear properly so draw an extra pixel
pRenderContext->Viewport( 0, 0, 1, 1 );
pRenderContext->ClearColor3ub( 0, 0, 0 );
pRenderContext->ClearBuffers( true, true );
pRenderContext->PopRenderTargetAndViewport();
}
static CLuminanceHistogramSystem g_HDR_HistogramSystem;
static float s_MovingAverageToneMapScale[10] = { 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f };
static int s_nInAverage = 0;
void ResetToneMapping(float value)
{
CMatRenderContextPtr pRenderContext( materials );
s_nInAverage = 0;
pRenderContext->ResetToneMappingScale(value);
}
static ConVar mat_force_tonemap_scale( "mat_force_tonemap_scale", "0.0", FCVAR_CHEAT );
static void SetToneMapScale(IMatRenderContext *pRenderContext, float newvalue, float minvalue, float maxvalue)
{
Assert( IsFinite( newvalue ) );
if( !IsFinite( newvalue ) )
return;
float flForcedTonemapScale = mat_force_tonemap_scale.GetFloat();
if( mat_fullbright.GetInt() == 1 )
{
flForcedTonemapScale = 1.0f;
}
if( flForcedTonemapScale > 0.0f )
{
mat_hdr_tonemapscale.SetValue( flForcedTonemapScale );
pRenderContext->ResetToneMappingScale( flForcedTonemapScale );
return;
}
mat_hdr_tonemapscale.SetValue( newvalue );
pRenderContext->SetGoalToneMappingScale( newvalue );
if ( s_nInAverage < ARRAYSIZE( s_MovingAverageToneMapScale ))
{
s_MovingAverageToneMapScale[s_nInAverage ++]= newvalue;
}
else
{
// scroll, losing oldest
for( int i = 0;i < ARRAYSIZE( s_MovingAverageToneMapScale ) - 1;i ++ )
s_MovingAverageToneMapScale[i]= s_MovingAverageToneMapScale[i + 1];
s_MovingAverageToneMapScale[ARRAYSIZE( s_MovingAverageToneMapScale ) - 1]= newvalue;
}
// now, use the average of the last tonemap calculations as our goal scale
if ( s_nInAverage == ARRAYSIZE( s_MovingAverageToneMapScale )) // got full buffer yet?
{
float avg = 0.;
float sumweights = 0;
int sample_pt = ARRAYSIZE( s_MovingAverageToneMapScale ) / 2;
for( int i = 0;i < ARRAYSIZE( s_MovingAverageToneMapScale );i ++ )
{
float weight = abs( i - sample_pt ) * ( 1.0 / ( ARRAYSIZE( s_MovingAverageToneMapScale ) / 2 ));
sumweights += weight;
avg += weight * s_MovingAverageToneMapScale[i];
}
avg *= ( 1.0 / sumweights );
avg = MIN( maxvalue, MAX( minvalue, avg ));
pRenderContext->SetGoalToneMappingScale( avg );
mat_hdr_tonemapscale.SetValue( avg );
}
}
//=====================================================================================================================
// Engine_Post material proxy ============================================================================================
//=====================================================================================================================
static ConVar mat_software_aa_strength( "mat_software_aa_strength", "-1.0", FCVAR_ARCHIVE, "Software AA - perform a software anti-aliasing post-process (an alternative/supplement to MSAA). This value sets the strength of the effect: (0.0 - off), (1.0 - full)" );
static ConVar mat_software_aa_quality( "mat_software_aa_quality", "0", FCVAR_ARCHIVE, "Software AA quality mode: (0 - 5-tap filter), (1 - 9-tap filter)" );
static ConVar mat_software_aa_edge_threshold( "mat_software_aa_edge_threshold", "1.0", FCVAR_ARCHIVE, "Software AA - adjusts the sensitivity of the software AA shader's edge detection (default 1.0 - a lower value will soften more edges, a higher value will soften fewer)" );
static ConVar mat_software_aa_blur_one_pixel_lines( "mat_software_aa_blur_one_pixel_lines", "0.5", FCVAR_ARCHIVE, "How much software AA should blur one-pixel thick lines: (0.0 - none), (1.0 - lots)" );
static ConVar mat_software_aa_tap_offset( "mat_software_aa_tap_offset", "1.0", FCVAR_ARCHIVE, "Software AA - adjusts the displacement of the taps used by the software AA shader (default 1.0 - a lower value will make the image sharper, higher will make it blurrier)" );
static ConVar mat_software_aa_debug( "mat_software_aa_debug", "0", FCVAR_NONE, "Software AA debug mode: (0 - off), (1 - show number of 'unlike' samples: 0->black, 1->red, 2->green, 3->blue), (2 - show anti-alias blend strength), (3 - show averaged 'unlike' colour)" );
static ConVar mat_software_aa_strength_vgui( "mat_software_aa_strength_vgui", "-1.0", FCVAR_ARCHIVE, "Same as mat_software_aa_strength, but forced to this value when called by the post vgui AA pass." );
class CEnginePostMaterialProxy : public CEntityMaterialProxy
{
public:
CEnginePostMaterialProxy();
virtual ~CEnginePostMaterialProxy();
virtual bool Init( IMaterial *pMaterial, KeyValues *pKeyValues );
virtual void OnBind( C_BaseEntity *pEntity );
virtual IMaterial *GetMaterial();
private:
IMaterialVar *m_pMaterialParam_AAValues;
IMaterialVar *m_pMaterialParam_AAValues2;
IMaterialVar *m_pMaterialParam_BloomEnable;
IMaterialVar *m_pMaterialParam_BloomUVTransform;
IMaterialVar *m_pMaterialParam_ColCorrectEnable;
IMaterialVar *m_pMaterialParam_ColCorrectNumLookups;
IMaterialVar *m_pMaterialParam_ColCorrectDefaultWeight;
IMaterialVar *m_pMaterialParam_ColCorrectLookupWeights;
public:
static IMaterial * SetupEnginePostMaterial( const Vector4D & fullViewportBloomUVs, const Vector4D & fullViewportFBUVs, const Vector2D & destTexSize,
bool bPerformSoftwareAA, bool bPerformBloom, bool bPerformColCorrect, float flAAStrength );
static void SetupEnginePostMaterialAA( bool bPerformSoftwareAA, float flAAStrength );
static void SetupEnginePostMaterialTextureTransform( const Vector4D & fullViewportBloomUVs, const Vector4D & fullViewportFBUVs, Vector2D destTexSize );
private:
static float s_vBloomAAValues[4];
static float s_vBloomAAValues2[4];
static float s_vBloomUVTransform[4];
static int s_PostBloomEnable;
};
float CEnginePostMaterialProxy::s_vBloomAAValues[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
float CEnginePostMaterialProxy::s_vBloomAAValues2[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
float CEnginePostMaterialProxy::s_vBloomUVTransform[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
int CEnginePostMaterialProxy::s_PostBloomEnable = 1;
CEnginePostMaterialProxy::CEnginePostMaterialProxy()
{
m_pMaterialParam_AAValues = NULL;
m_pMaterialParam_AAValues2 = NULL;
m_pMaterialParam_BloomUVTransform = NULL;
m_pMaterialParam_BloomEnable = NULL;
m_pMaterialParam_ColCorrectEnable = NULL;
m_pMaterialParam_ColCorrectNumLookups = NULL;
m_pMaterialParam_ColCorrectDefaultWeight = NULL;
m_pMaterialParam_ColCorrectLookupWeights = NULL;
}
CEnginePostMaterialProxy::~CEnginePostMaterialProxy()
{
// Do nothing
}
bool CEnginePostMaterialProxy::Init( IMaterial *pMaterial, KeyValues *pKeyValues )
{
bool bFoundVar = false;
m_pMaterialParam_AAValues = pMaterial->FindVar( "$AAInternal1", &bFoundVar, false );
m_pMaterialParam_AAValues2 = pMaterial->FindVar( "$AAInternal3", &bFoundVar, false );
m_pMaterialParam_BloomUVTransform = pMaterial->FindVar( "$AAInternal2", &bFoundVar, false );
m_pMaterialParam_BloomEnable = pMaterial->FindVar( "$bloomEnable", &bFoundVar, false );
m_pMaterialParam_ColCorrectEnable = pMaterial->FindVar( "$colCorrectEnable", &bFoundVar, false );
m_pMaterialParam_ColCorrectNumLookups = pMaterial->FindVar( "$colCorrect_NumLookups", &bFoundVar, false );
m_pMaterialParam_ColCorrectDefaultWeight = pMaterial->FindVar( "$colCorrect_DefaultWeight", &bFoundVar, false );
m_pMaterialParam_ColCorrectLookupWeights = pMaterial->FindVar( "$colCorrect_LookupWeights", &bFoundVar, false );
return true;
}
void CEnginePostMaterialProxy::OnBind( C_BaseEntity *pEnt )
{
if ( m_pMaterialParam_AAValues )
m_pMaterialParam_AAValues->SetVecValue( s_vBloomAAValues, 4 );
if ( m_pMaterialParam_AAValues2 )
m_pMaterialParam_AAValues2->SetVecValue( s_vBloomAAValues2, 4 );
if ( m_pMaterialParam_BloomUVTransform )
m_pMaterialParam_BloomUVTransform->SetVecValue( s_vBloomUVTransform, 4 );
if ( m_pMaterialParam_BloomEnable )
m_pMaterialParam_BloomEnable->SetIntValue( s_PostBloomEnable );
}
IMaterial *CEnginePostMaterialProxy::GetMaterial()
{
if ( m_pMaterialParam_AAValues == NULL)
return NULL;
return m_pMaterialParam_AAValues->GetOwningMaterial();
}
void CEnginePostMaterialProxy::SetupEnginePostMaterialAA( bool bPerformSoftwareAA, float flAAStrength )
{
if ( bPerformSoftwareAA )
{
// Pass ConVars to the material by proxy
// - the strength of the AA effect (from 0 to 1)
// - how much to allow 1-pixel lines to be blurred (from 0 to 1)
// - pick one of the two quality modes (5-tap or 9-tap filter)
// - optionally enable one of several debug modes (via dynamic combos)
// NOTE: this order matches pixel shader constants in Engine_Post_ps2x.fxc
s_vBloomAAValues[0] = flAAStrength;
s_vBloomAAValues[1] = 1.0f - mat_software_aa_blur_one_pixel_lines.GetFloat();
s_vBloomAAValues[2] = mat_software_aa_quality.GetInt();
s_vBloomAAValues[3] = mat_software_aa_debug.GetInt();
s_vBloomAAValues2[0] = mat_software_aa_edge_threshold.GetFloat();
s_vBloomAAValues2[1] = mat_software_aa_tap_offset.GetFloat();
//s_vBloomAAValues2[2] = unused;
//s_vBloomAAValues2[3] = unused;
}
else
{
// Zero-strength AA is interpreted as "AA disabled"
s_vBloomAAValues[0] = 0.0f;
}
}
void CEnginePostMaterialProxy::SetupEnginePostMaterialTextureTransform( const Vector4D & fullViewportBloomUVs, const Vector4D & fullViewportFBUVs, Vector2D fbSize )
{
// Engine_Post uses a UV transform (from (quarter-res) bloom texture coords ('1')
// to (full-res) framebuffer texture coords ('2')).
//
// We compute the UV transform as an offset and a scale, using the texture coordinates
// of the top-left corner of the screen to compute the offset and the coordinate
// change from the top-left to the bottom-right of the quad to compute the scale.
// Take texel coordinates (start = top-left, end = bottom-right):
Vector2D texelStart1 = Vector2D( fullViewportBloomUVs.x, fullViewportBloomUVs.y );
Vector2D texelStart2 = Vector2D( fullViewportFBUVs.x, fullViewportFBUVs.y );
Vector2D texelEnd1 = Vector2D( fullViewportBloomUVs.z, fullViewportBloomUVs.w );
Vector2D texelEnd2 = Vector2D( fullViewportFBUVs.z, fullViewportFBUVs.w );
// ...and transform to UV coordinates:
Vector2D texRes1 = fbSize / 4;
Vector2D texRes2 = fbSize;
Vector2D uvStart1 = ( texelStart1 + Vector2D(0.5,0.5) ) / texRes1;
Vector2D uvStart2 = ( texelStart2 + Vector2D(0.5,0.5) ) / texRes2;
Vector2D dUV1 = ( texelEnd1 - texelStart1 ) / texRes1;
Vector2D dUV2 = ( texelEnd2 - texelStart2 ) / texRes2;
// We scale about the rect's top-left pixel centre (not the origin) in UV-space:
// uv' = ((uv - uvStart1)*uvScale + uvStart1) + uvOffset
// = uvScale*uv + uvOffset + uvStart1*(1 - uvScale)
Vector2D uvOffset = uvStart2 - uvStart1;
Vector2D uvScale = dUV2 / dUV1;
uvOffset = uvOffset + uvStart1*(Vector2D(1,1) - uvScale);
s_vBloomUVTransform[0] = uvOffset.x;
s_vBloomUVTransform[1] = uvOffset.y;
s_vBloomUVTransform[2] = uvScale.x;
s_vBloomUVTransform[3] = uvScale.y;
}
IMaterial * CEnginePostMaterialProxy::SetupEnginePostMaterial( const Vector4D & fullViewportBloomUVs, const Vector4D & fullViewportFBUVs, const Vector2D & destTexSize,
bool bPerformSoftwareAA, bool bPerformBloom, bool bPerformColCorrect, float flAAStrength )
{
// Shouldn't get here if none of the effects are enabled
Assert( bPerformSoftwareAA || bPerformBloom || bPerformColCorrect );
s_PostBloomEnable = bPerformBloom ? 1 : 0;
SetupEnginePostMaterialAA( bPerformSoftwareAA, flAAStrength );
if ( bPerformSoftwareAA || bPerformColCorrect )
{
SetupEnginePostMaterialTextureTransform( fullViewportBloomUVs, fullViewportFBUVs, destTexSize );
return materials->FindMaterial( "dev/engine_post", TEXTURE_GROUP_OTHER, true);
}
else
{
// Just use the old bloomadd material (which uses additive blending, unlike engine_post)
// NOTE: this path is what gets used for DX8 (which cannot enable AA or col-correction)
return materials->FindMaterial( "dev/bloomadd", TEXTURE_GROUP_OTHER, true);
}
}
EXPOSE_INTERFACE( CEnginePostMaterialProxy, IMaterialProxy, "engine_post" IMATERIAL_PROXY_INTERFACE_VERSION );
static void DrawBloomDebugBoxes( IMatRenderContext *pRenderContext )
{
// draw inset rects which should have a centered bloom
pRenderContext->SetRenderTarget(NULL);
int dest_width, dest_height;
pRenderContext->GetRenderTargetDimensions( dest_width, dest_height );
// full screen clear
pRenderContext->Viewport( 0, 0, dest_width, dest_height );
pRenderContext->ClearColor3ub( 0, 0, 0 );
pRenderContext->ClearBuffers( true, true );
// inset for screensafe
int inset = 64;
int size = 32;
// centerish, translating
static int wx = 0;
wx = ( wx + 1 ) & 63;
pRenderContext->Viewport( dest_width / 2 + wx, dest_height / 2, size, size );
pRenderContext->ClearColor3ub( 255, 255, 255 );
pRenderContext->ClearBuffers( true, true );
// upper left
pRenderContext->Viewport( inset, inset, size, size );
pRenderContext->ClearBuffers( true, true );
// upper right
pRenderContext->Viewport( dest_width - inset - size, inset, size, size );
pRenderContext->ClearBuffers( true, true );
// lower right
pRenderContext->Viewport( dest_width - inset - size, dest_height - inset - size, size, size );
pRenderContext->ClearBuffers( true, true );
// lower left
pRenderContext->Viewport( inset, dest_height - inset - size, size, size );
pRenderContext->ClearBuffers( true, true );
// restore
pRenderContext->Viewport( 0, 0, dest_width, dest_height );
}
static float GetBloomAmount( void )
{
// return bloom amount ( 0.0 if disabled or otherwise turned off )
if ( engine->GetDXSupportLevel() < 80 )
return 0.0;
HDRType_t hdrType = g_pMaterialSystemHardwareConfig->GetHDRType();
bool bBloomEnabled = (mat_hdr_level.GetInt() >= 1);
if ( !engine->MapHasHDRLighting() )
bBloomEnabled = false;
if ( mat_force_bloom.GetInt() )
bBloomEnabled = true;
if ( mat_disable_bloom.GetInt() )
bBloomEnabled = false;
if ( building_cubemaps.GetBool() )
bBloomEnabled = false;
if ( mat_fullbright.GetInt() == 1 )
{
bBloomEnabled = false;
}
if( !g_pMaterialSystemHardwareConfig->CanDoSRGBReadFromRTs() && g_pMaterialSystemHardwareConfig->FakeSRGBWrite() )
{
bBloomEnabled = false;
}
float flBloomAmount=0.0;
if (bBloomEnabled)
{
static float currentBloomAmount = 1.0f;
float rate = mat_bloomamount_rate.GetFloat();
// Use the appropriate bloom scale settings. Mapmakers's overrides the convar settings.
currentBloomAmount = GetCurrentBloomScale() * rate + ( 1.0f - rate ) * currentBloomAmount;
flBloomAmount = currentBloomAmount;
}
if ( hdrType == HDR_TYPE_NONE )
{
flBloomAmount *= mat_non_hdr_bloom_scalefactor.GetFloat();
}
flBloomAmount *= mat_bloom_scalefactor_scalar.GetFloat();
return flBloomAmount;
}
// Control for dumping render targets to files for debugging
static ConVar mat_dump_rts( "mat_dump_rts", "0" );
static int s_nRTIndex = 0;
bool g_bDumpRenderTargets = false;
// Dump a rendertarget to a TGA. Useful for looking at intermediate render target results.
void DumpTGAofRenderTarget( const int width, const int height, const char *pFilename )
{
// Ensure that mat_queue_mode is zero
static ConVarRef mat_queue_mode( "mat_queue_mode" );
if ( mat_queue_mode.GetInt() != 0 )
{
DevMsg( "Error: mat_queue_mode must be 0 to dump debug rendertargets\n" );
mat_dump_rts.SetValue( 0 ); // Just report this error once and stop trying to dump images
return;
}
CMatRenderContextPtr pRenderContext( materials );
// Get the data from the render target and save to disk bitmap bits
unsigned char *pImage = ( unsigned char * )malloc( width * 4 * height );
// Get Bits from the material system
pRenderContext->ReadPixels( 0, 0, width, height, pImage, IMAGE_FORMAT_RGBA8888 );
// allocate a buffer to write the tga into
int iMaxTGASize = 1024 + (width * height * 4);
void *pTGA = malloc( iMaxTGASize );
CUtlBuffer buffer( pTGA, iMaxTGASize );
if( !TGAWriter::WriteToBuffer( pImage, buffer, width, height, IMAGE_FORMAT_RGBA8888, IMAGE_FORMAT_RGBA8888 ) )
{
Error( "Couldn't write bitmap data snapshot.\n" );
}
free( pImage );
// async write to disk (this will take ownership of the memory)
char szPathedFileName[_MAX_PATH];
Q_snprintf( szPathedFileName, sizeof(szPathedFileName), "//MOD/%d_%s_%s.tga", s_nRTIndex++, pFilename, IsOSX() ? "OSX" : "PC" );
FileHandle_t fileTGA = filesystem->Open( szPathedFileName, "wb" );
filesystem->Write( buffer.Base(), buffer.TellPut(), fileTGA );
filesystem->Close( fileTGA );
free( pTGA );
}
static bool s_bScreenEffectTextureIsUpdated = false;
static void Generate8BitBloomTexture( IMatRenderContext *pRenderContext, float flBloomScale,
int x, int y, int w, int h )
{
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s", __FUNCTION__ );
pRenderContext->PushRenderTargetAndViewport();
ITexture *pSrc = materials->FindTexture( "_rt_FullFrameFB", TEXTURE_GROUP_RENDER_TARGET );
int nSrcWidth = pSrc->GetActualWidth();
int nSrcHeight = pSrc->GetActualHeight(); //,dest_height;
// Counter-Strike: Source uses a different downsample algorithm than other games
#ifdef CSTRIKE_DLL
IMaterial *downsample_mat = materials->FindMaterial( "dev/downsample_non_hdr_cstrike", TEXTURE_GROUP_OTHER, true);
#else
IMaterial *downsample_mat = materials->FindMaterial( "dev/downsample_non_hdr", TEXTURE_GROUP_OTHER, true);
#endif
IMaterial *xblur_mat = materials->FindMaterial( "dev/blurfilterx_nohdr", TEXTURE_GROUP_OTHER, true );
IMaterial *yblur_mat = materials->FindMaterial( "dev/blurfiltery_nohdr", TEXTURE_GROUP_OTHER, true );
ITexture *dest_rt0 = materials->FindTexture( "_rt_SmallFB0", TEXTURE_GROUP_RENDER_TARGET );
ITexture *dest_rt1 = materials->FindTexture( "_rt_SmallFB1", TEXTURE_GROUP_RENDER_TARGET );
// *Everything* in here relies on the small RTs being exactly 1/4 the full FB res
Assert( dest_rt0->GetActualWidth() == pSrc->GetActualWidth() / 4 );
Assert( dest_rt0->GetActualHeight() == pSrc->GetActualHeight() / 4 );
Assert( dest_rt1->GetActualWidth() == pSrc->GetActualWidth() / 4 );
Assert( dest_rt1->GetActualHeight() == pSrc->GetActualHeight() / 4 );
// Downsample fb to rt0
SetRenderTargetAndViewPort( dest_rt0 );
// note the -2's below. Thats because we are downsampling on each axis and the shader
// accesses pixels on both sides of the source coord
pRenderContext->DrawScreenSpaceRectangle( downsample_mat, 0, 0, nSrcWidth/4, nSrcHeight/4,
0, 0, nSrcWidth-2, nSrcHeight-2,
nSrcWidth, nSrcHeight );
if ( IsX360() )
{
pRenderContext->CopyRenderTargetToTextureEx( dest_rt0, 0, NULL, NULL );
}
else if ( g_bDumpRenderTargets )
{
DumpTGAofRenderTarget( nSrcWidth/4, nSrcHeight/4, "QuarterSizeFB" );
}
// Gaussian blur x rt0 to rt1
SetRenderTargetAndViewPort( dest_rt1 );
pRenderContext->DrawScreenSpaceRectangle( xblur_mat, 0, 0, nSrcWidth/4, nSrcHeight/4,
0, 0, nSrcWidth/4-1, nSrcHeight/4-1,
nSrcWidth/4, nSrcHeight/4 );
if ( IsX360() )
{
pRenderContext->CopyRenderTargetToTextureEx( dest_rt1, 0, NULL, NULL );
}
else if ( g_bDumpRenderTargets )
{
DumpTGAofRenderTarget( nSrcWidth/4, nSrcHeight/4, "BlurX" );
}
// Gaussian blur y rt1 to rt0
SetRenderTargetAndViewPort( dest_rt0 );
IMaterialVar *pBloomAmountVar = yblur_mat->FindVar( "$bloomamount", NULL );
pBloomAmountVar->SetFloatValue( flBloomScale );
pRenderContext->DrawScreenSpaceRectangle( yblur_mat, 0, 0, nSrcWidth / 4, nSrcHeight / 4,
0, 0, nSrcWidth / 4 - 1, nSrcHeight / 4 - 1,
nSrcWidth / 4, nSrcHeight / 4 );
if ( IsX360() )
{
pRenderContext->CopyRenderTargetToTextureEx( dest_rt0, 0, NULL, NULL );
}
else if ( g_bDumpRenderTargets )
{
DumpTGAofRenderTarget( nSrcWidth/4, nSrcHeight/4, "BlurYAndBloom" );
}
pRenderContext->PopRenderTargetAndViewport();
}
static void DoPreBloomTonemapping( IMatRenderContext *pRenderContext, int nX, int nY, int nWidth, int nHeight, float flAutoExposureMin, float flAutoExposureMax )
{
// Update HDR histogram before bloom
if ( mat_dynamic_tonemapping.GetInt() || mat_show_histogram.GetInt() )
{
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s", __FUNCTION__ );
if ( s_bScreenEffectTextureIsUpdated == false )
{
// FIXME: nX/nY/nWidth/nHeight are used here, but the equivalent parameters are ignored in Generate8BitBloomTexture
UpdateScreenEffectTexture( 0, nX, nY, nWidth, nHeight, true );
s_bScreenEffectTextureIsUpdated = true;
}
g_HDR_HistogramSystem.Update();
if ( mat_dynamic_tonemapping.GetInt() || mat_show_histogram.GetInt() )
{
float flTargetScalar = g_HDR_HistogramSystem.GetTargetTonemapScalar();
float flTargetScalarClamped = MAX( flAutoExposureMin, MIN( flAutoExposureMax, flTargetScalar ) );
flTargetScalarClamped = MAX( 0.001f, flTargetScalarClamped ); // Don't let this go to 0!
if ( mat_dynamic_tonemapping.GetInt() )
{
SetToneMapScale( pRenderContext, flTargetScalarClamped, flAutoExposureMin, flAutoExposureMax );
}
if ( mat_debug_autoexposure.GetInt() || mat_show_histogram.GetInt() )
{
bool bDrawTextThisFrame = true;
if ( IsX360() )
{
static float s_flLastTimeUpdate = 0.0f;
if ( int( gpGlobals->curtime ) - int( s_flLastTimeUpdate ) >= 2 )
{
s_flLastTimeUpdate = gpGlobals->curtime;
bDrawTextThisFrame = true;
}
else
{
bDrawTextThisFrame = false;
}
}
if ( bDrawTextThisFrame == true )
{
if ( mat_tonemap_algorithm.GetInt() == 0 )
{
engine->Con_NPrintf( 19, "(Original algorithm) Target Scalar = %4.2f Min/Max( %4.2f, %4.2f ) Final Scalar: %4.2f Actual: %4.2f",
flTargetScalar, flAutoExposureMin, flAutoExposureMax, mat_hdr_tonemapscale.GetFloat(), pRenderContext->GetToneMappingScaleLinear().x );
}
else
{
engine->Con_NPrintf( 19, "%.2f%% of pixels above %d%% target @ %4.2f%% Target Scalar = %4.2f Min/Max( %4.2f, %4.2f ) Final Scalar: %4.2f Actual: %4.2f",
mat_tonemap_percent_bright_pixels.GetFloat(), mat_tonemap_percent_target.GetInt(),
( g_HDR_HistogramSystem.FindLocationOfPercentBrightPixels( mat_tonemap_percent_bright_pixels.GetFloat(), mat_tonemap_percent_target.GetFloat() ) * 100.0f ),
g_HDR_HistogramSystem.GetTargetTonemapScalar( true ), flAutoExposureMin, flAutoExposureMax, mat_hdr_tonemapscale.GetFloat(), pRenderContext->GetToneMappingScaleLinear().x );
}
}
}
}
}
}
static void DoPostBloomTonemapping( IMatRenderContext *pRenderContext, int nX, int nY, int nWidth, int nHeight, float flAutoExposureMin, float flAutoExposureMax )
{
if ( mat_show_histogram.GetInt() && ( engine->GetDXSupportLevel() >= 90 ) )
{
g_HDR_HistogramSystem.DisplayHistogram();
}
}
static void CenterScaleQuadUVs( Vector4D & quadUVs, const Vector2D & uvScale )
{
Vector2D uvMid = 0.5f*Vector2D( ( quadUVs.z + quadUVs.x ), ( quadUVs.w + quadUVs.y ) );
Vector2D uvRange= 0.5f*Vector2D( ( quadUVs.z - quadUVs.x ), ( quadUVs.w - quadUVs.y ) );
quadUVs.x = uvMid.x - uvScale.x*uvRange.x;
quadUVs.y = uvMid.y - uvScale.y*uvRange.y;
quadUVs.z = uvMid.x + uvScale.x*uvRange.x;
quadUVs.w = uvMid.y + uvScale.y*uvRange.y;
}
typedef struct SPyroSide
{
float m_vCornerPos[ 2 ][ 2 ];
float m_flIntensity;
float m_flIntensityLimit;
float m_flRate;
bool m_bHorizontal;
bool m_bIncreasing;
bool m_bAlive;
} TPyroSide;
#define MAX_PYRO_SIDES 50
#define NUM_PYRO_SEGMENTS 8
#define MIN_PYRO_SIDE_LENGTH 0.5f
#define MAX_PYRO_SIDE_LENGTH 0.90f
#define MIN_PYRO_SIDE_WIDTH 0.25f
#define MAX_PYRO_SIDE_WIDTH 0.95f
static TPyroSide PyroSides[ MAX_PYRO_SIDES ];
ConVar pyro_vignette( "pyro_vignette", "2", FCVAR_ARCHIVE );
ConVar pyro_vignette_distortion( "pyro_vignette_distortion", "1", FCVAR_ARCHIVE );
ConVar pyro_min_intensity( "pyro_min_intensity", "0.1", FCVAR_ARCHIVE );
ConVar pyro_max_intensity( "pyro_max_intensity", "0.35", FCVAR_ARCHIVE );
ConVar pyro_min_rate( "pyro_min_rate", "0.05", FCVAR_ARCHIVE );
ConVar pyro_max_rate( "pyro_max_rate", "0.2", FCVAR_ARCHIVE );
ConVar pyro_min_side_length( "pyro_min_side_length", "0.3", FCVAR_ARCHIVE );
ConVar pyro_max_side_length( "pyro_max_side_length", "0.55", FCVAR_ARCHIVE );
ConVar pyro_min_side_width( "pyro_min_side_width", "0.65", FCVAR_ARCHIVE );
ConVar pyro_max_side_width( "pyro_max_side_width", "0.95", FCVAR_ARCHIVE );
static void CreatePyroSide( int nSide, Vector2D &vMaxSize )
{
int nFound = 0;
for( ; nFound < MAX_PYRO_SIDES; nFound++ )
{
if ( !PyroSides[ nFound ].m_bAlive )
{
break;
}
}
if ( nFound >= MAX_PYRO_SIDES )
{
return;
}
TPyroSide *pSide = &PyroSides[ nFound ];
pSide->m_flIntensity = 0.0f;
pSide->m_flIntensityLimit = RandomFloat( pyro_min_intensity.GetFloat(), pyro_max_intensity.GetFloat() );
pSide->m_flRate = RandomFloat( pyro_min_rate.GetFloat(), pyro_max_rate.GetFloat() );
pSide->m_bIncreasing = true;
pSide->m_bHorizontal = ( ( nSide >> 1 ) & 1 ) == 0;
pSide->m_bAlive = true;
// float flWidth = RandomFloat( MIN_PYRO_SIDE_WIDTH, MAX_PYRO_SIDE_WIDTH ) * 2.0f;
// float flLength = RandomFloat( MIN_PYRO_SIDE_LENGTH, MAX_PYRO_SIDE_LENGTH );
float flWidth = RandomFloat( pyro_min_side_width.GetFloat(), pyro_max_side_width.GetFloat() ) * 2.0f;
float flLength = RandomFloat( pyro_min_side_length.GetFloat(), pyro_max_side_length.GetFloat() );
switch( nSide )
{
case 0:
{
pSide->m_vCornerPos[ 0 ][ 0 ] = -1.0f;
pSide->m_vCornerPos[ 0 ][ 1 ] = 1.0f;
pSide->m_vCornerPos[ 1 ][ 0 ] = -1.0f + flWidth;
pSide->m_vCornerPos[ 1 ][ 1 ] = 1.0f - ( flLength * vMaxSize.y );
}
break;
case 1:
{
pSide->m_vCornerPos[ 0 ][ 0 ] = 1.0f;
pSide->m_vCornerPos[ 0 ][ 1 ] = 1.0f;
pSide->m_vCornerPos[ 1 ][ 0 ] = 1.0f - flWidth;
pSide->m_vCornerPos[ 1 ][ 1 ] = 1.0f - ( flLength * vMaxSize.y );
}
break;
case 2:
{
pSide->m_vCornerPos[ 0 ][ 0 ] = 1.0f;
pSide->m_vCornerPos[ 0 ][ 1 ] = 1.0f;
pSide->m_vCornerPos[ 1 ][ 0 ] = 1.0f - ( flLength * vMaxSize.x );
pSide->m_vCornerPos[ 1 ][ 1 ] = 1.0f - flWidth;
}
break;
case 3:
{
pSide->m_vCornerPos[ 0 ][ 0 ] = 1.0f;
pSide->m_vCornerPos[ 0 ][ 1 ] = -1.0f;
pSide->m_vCornerPos[ 1 ][ 0 ] = 1.0f - ( flLength * vMaxSize.x );
pSide->m_vCornerPos[ 1 ][ 1 ] = -1.0f + flWidth;
}
break;
case 4:
{
pSide->m_vCornerPos[ 0 ][ 0 ] = 1.0f;
pSide->m_vCornerPos[ 0 ][ 1 ] = -1.0f;
pSide->m_vCornerPos[ 1 ][ 0 ] = 1.0f - flWidth;
pSide->m_vCornerPos[ 1 ][ 1 ] = -1.0f + ( flLength * vMaxSize.y );
}
break;
case 5:
{
pSide->m_vCornerPos[ 0 ][ 0 ] = -1.0f;
pSide->m_vCornerPos[ 0 ][ 1 ] = -1.0f;
pSide->m_vCornerPos[ 1 ][ 0 ] = -1.0f + flWidth;
pSide->m_vCornerPos[ 1 ][ 1 ] = -1.0f + ( flLength * vMaxSize.y );
}
break;
case 6:
{
pSide->m_vCornerPos[ 0 ][ 0 ] = -1.0f;
pSide->m_vCornerPos[ 0 ][ 1 ] = -1.0f;
pSide->m_vCornerPos[ 1 ][ 0 ] = -1.0f + ( flLength * vMaxSize.x );
pSide->m_vCornerPos[ 1 ][ 1 ] = -1.0f + flWidth;
}
break;
case 7:
{
pSide->m_vCornerPos[ 0 ][ 0 ] = -1.0f;
pSide->m_vCornerPos[ 0 ][ 1 ] = 1.0f;
pSide->m_vCornerPos[ 1 ][ 0 ] = -1.0f + ( flLength * vMaxSize.x );
pSide->m_vCornerPos[ 1 ][ 1 ] = 1.0f - flWidth;
}
break;
}
}
static float PryoVignetteSTHorizontal[ 6 ][ 2 ] =
{
{ 0.0f, 0.0f },
{ 0.0f, 1.0f },
{ 1.0f, 1.0f },
{ 1.0f, 1.0f },
{ 0.0f, 0.0f },
{ 1.0f, 0.0f }
};
static float PryoVignetteSTVertical[ 6 ][ 2 ] =
{
{ 0.0f, 0.0f },
{ 1.0f, 0.0f },
{ 1.0f, 1.0f },
{ 1.0f, 1.0f },
{ 0.0f, 0.0f },
{ 0.0f, 1.0f }
};
static int PryoSideIndexes[ 6 ][ 2 ] =
{
{ 0, 0 },
{ 0, 1 },
{ 1, 1 },
{ 1, 1 },
{ 0, 0 },
{ 1, 0 }
};
static void DrawPyroVignette( int nDestX, int nDestY, int nWidth, int nHeight, // Rect to draw into in screen space
float flSrcTextureX0, float flSrcTextureY0, // which texel you want to appear at destx/y
float flSrcTextureX1, float flSrcTextureY1, // which texel you want to appear at destx+width-1, desty+height-1
void *pClientRenderable )
{
static bool bInit = false;
static int nNextSide = 0;
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
IMaterial *pVignetteBorder = materials->FindMaterial( "dev/pyro_vignette_border", TEXTURE_GROUP_OTHER, true );
IMaterial *pMaterial = materials->FindMaterial( "dev/pyro_vignette", TEXTURE_GROUP_OTHER, true );
ITexture *pRenderTarget = materials->FindTexture( "_rt_ResolvedFullFrameDepth", TEXTURE_GROUP_RENDER_TARGET );
pRenderContext->PushRenderTargetAndViewport( pRenderTarget );
pRenderContext->ClearColor4ub( 0, 0, 0, 0 );
pRenderContext->ClearBuffers( true, false );
int nScreenWidth, nScreenHeight;
pRenderContext->GetRenderTargetDimensions( nScreenWidth, nScreenHeight );
pRenderContext->DrawScreenSpaceRectangle( pVignetteBorder, 0, 0, nScreenWidth, nScreenHeight, 0, 0, nScreenWidth - 1, nScreenHeight - 1, nScreenWidth, nScreenHeight, pClientRenderable );
if ( pyro_vignette.GetInt() > 1 )
{
float flPyroSegments = 2.0f / NUM_PYRO_SEGMENTS;
Vector2D vMaxSize( flPyroSegments, flPyroSegments );
if ( !bInit )
{
for( int i = 0; i < MAX_PYRO_SIDES; i++ )
{
PyroSides[ i ].m_bAlive = false;
}
CreatePyroSide( nNextSide, vMaxSize );
nNextSide = ( nNextSide + 1 ) & 7;
bInit = true;
}
int nNumAlive = 0;
TPyroSide *pSide = &PyroSides[ 0 ];
for( int nIndex = 0; nIndex < MAX_PYRO_SIDES; nIndex++, pSide++ )
{
if ( pSide->m_bAlive )
{
if ( pSide->m_bIncreasing )
{
pSide->m_flIntensity += pSide->m_flRate * gpGlobals->frametime;
if ( pSide->m_flIntensity >= pSide->m_flIntensityLimit )
{
pSide->m_bIncreasing = false;
}
}
else
{
pSide->m_flIntensity -= pSide->m_flRate * gpGlobals->frametime;
if ( pSide->m_flIntensity <= 0.0f )
{
pSide->m_bAlive = false;
}
}
}
if ( pSide->m_bAlive )
{
nNumAlive++;
}
}
if ( nNumAlive > 0 )
{
pRenderContext->MatrixMode( MATERIAL_VIEW );
pRenderContext->PushMatrix();
pRenderContext->LoadIdentity();
pRenderContext->MatrixMode( MATERIAL_PROJECTION );
pRenderContext->PushMatrix();
pRenderContext->LoadIdentity();
pRenderContext->Bind( pMaterial, pClientRenderable );
CMeshBuilder meshBuilder;
IMesh* pMesh = pRenderContext->GetDynamicMesh( true );
meshBuilder.Begin( pMesh, MATERIAL_TRIANGLES, nNumAlive * 2 );
pSide = &PyroSides[ 0 ];
for( int nIndex = 0; nIndex < MAX_PYRO_SIDES; nIndex++, pSide++ )
{
if ( pSide->m_bAlive )
{
for( int i = 0; i < 6; i++ )
{
meshBuilder.Position3f( pSide->m_vCornerPos[ PryoSideIndexes[ i ][ 0 ] ][ 0 ], pSide->m_vCornerPos[ PryoSideIndexes[ i ][ 1 ] ][ 1 ], 0.0f );
meshBuilder.Color4f( pSide->m_flIntensity, pSide->m_flIntensity, pSide->m_flIntensity, 1.0f );
meshBuilder.TexCoord2fv( 0, pSide->m_bHorizontal ? PryoVignetteSTHorizontal[ i ] : PryoVignetteSTVertical[ i ] );
meshBuilder.TangentS3f( 0.0f, 1.0f, 0.0f );
meshBuilder.TangentT3f( 1.0f, 0.0f, 0.0f );
meshBuilder.Normal3f( 0.0f, 0.0f, 1.0f );
meshBuilder.AdvanceVertex();
}
}
}
meshBuilder.End();
pMesh->Draw();
pRenderContext->MatrixMode( MATERIAL_VIEW );
pRenderContext->PopMatrix();
pRenderContext->MatrixMode( MATERIAL_PROJECTION );
pRenderContext->PopMatrix();
}
if ( nNumAlive < 25 )
{
CreatePyroSide( nNextSide, vMaxSize );
nNextSide = ( nNextSide + 1 ) & 7;
}
}
pRenderContext->PopRenderTargetAndViewport();
}
static void DrawPyroPost( IMaterial *pMaterial,
int nDestX, int nDestY, int nWidth, int nHeight, // Rect to draw into in screen space
float flSrcTextureX0, float flSrcTextureY0, // which texel you want to appear at destx/y
float flSrcTextureX1, float flSrcTextureY1, // which texel you want to appear at destx+width-1, desty+height-1
int nSrcTextureWidth, int nSrcTextureHeight, // needed for fixup
void *pClientRenderable ) // Used to pass to the bind proxies
{
bool bFound = false;
IMaterialVar *pVar = pMaterial->FindVar( "$disabled", &bFound, false );
if ( bFound && pVar->GetIntValue() )
{
return;
}
CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
pRenderContext->MatrixMode( MATERIAL_VIEW );
pRenderContext->PushMatrix();
pRenderContext->LoadIdentity();
pRenderContext->MatrixMode( MATERIAL_PROJECTION );
pRenderContext->PushMatrix();
pRenderContext->LoadIdentity();
pRenderContext->Bind( pMaterial, pClientRenderable );
int xSegments = NUM_PYRO_SEGMENTS;
int ySegments = NUM_PYRO_SEGMENTS;
CMeshBuilder meshBuilder;
IMesh* pMesh = pRenderContext->GetDynamicMesh( true );
meshBuilder.Begin( pMesh, MATERIAL_QUADS, 4 );
int nScreenWidth, nScreenHeight;
pRenderContext->GetRenderTargetDimensions( nScreenWidth, nScreenHeight );
float flOffset = IsPosix() ? 0.0f : 0.5f;
float flLeftX = nDestX - flOffset;
float flRightX = nDestX + nWidth - flOffset;
float flTopY = nDestY - flOffset;
float flBottomY = nDestY + nHeight - flOffset;
float flSubrectWidth = flSrcTextureX1 - flSrcTextureX0;
float flSubrectHeight = flSrcTextureY1 - flSrcTextureY0;
float flTexelsPerPixelX = ( nWidth > 1 ) ? flSubrectWidth / ( nWidth - 1 ) : 0.0f;
float flTexelsPerPixelY = ( nHeight > 1 ) ? flSubrectHeight / ( nHeight - 1 ) : 0.0f;
float flLeftU = flSrcTextureX0 + 0.5f - ( 0.5f * flTexelsPerPixelX );
float flRightU = flSrcTextureX1 + 0.5f + ( 0.5f * flTexelsPerPixelX );
float flTopV = flSrcTextureY0 + 0.5f - ( 0.5f * flTexelsPerPixelY );
float flBottomV = flSrcTextureY1 + 0.5f + ( 0.5f * flTexelsPerPixelY );
float flOOTexWidth = 1.0f / nSrcTextureWidth;
float flOOTexHeight = 1.0f / nSrcTextureHeight;
flLeftU *= flOOTexWidth;
flRightU *= flOOTexWidth;
flTopV *= flOOTexHeight;
flBottomV *= flOOTexHeight;
// Get the current viewport size
int vx, vy, vw, vh;
pRenderContext->GetViewport( vx, vy, vw, vh );
// map from screen pixel coords to -1..1
flRightX = FLerp( -1, 1, 0, vw, flRightX );
flLeftX = FLerp( -1, 1, 0, vw, flLeftX );
flTopY = FLerp( 1, -1, 0, vh ,flTopY );
flBottomY = FLerp( 1, -1, 0, vh, flBottomY );
// Screen height and width of a subrect
float flWidth = (flRightX - flLeftX) / (float) xSegments;
float flHeight = (flTopY - flBottomY) / (float) ySegments;
// UV height and width of a subrect
float flUWidth = (flRightU - flLeftU) / (float) xSegments;
float flVHeight = (flBottomV - flTopV) / (float) ySegments;
// Top Bar
// Top left
meshBuilder.Position3f( flLeftX + (float) 0 * flWidth, flTopY - (float) 0 * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) 0 * flUWidth, flTopV + (float) 0 * flVHeight);
meshBuilder.AdvanceVertex();
// Top right (x+1)
meshBuilder.Position3f( flLeftX + (float) (xSegments+1) * flWidth, flTopY - (float) 0 * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (xSegments+1) * flUWidth, flTopV + (float) 0 * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom right (x+1), (y+1)
meshBuilder.Position3f( flLeftX + (float) (xSegments+1) * flWidth, flTopY - (float) (0+1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (xSegments+1) * flUWidth, flTopV + (float)(0+1) * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom left (y+1)
meshBuilder.Position3f( flLeftX + (float) 0 * flWidth, flTopY - (float) (0+1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) 0 * flUWidth, flTopV + (float)(0+1) * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom Bar
// Top left
meshBuilder.Position3f( flLeftX + (float) 0 * flWidth, flTopY - (float) ( ySegments - 1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) 0 * flUWidth, flTopV + (float) ( ySegments - 1) * flVHeight);
meshBuilder.AdvanceVertex();
// Top right (x+1)
meshBuilder.Position3f( flLeftX + (float) (xSegments) * flWidth, flTopY - (float) ( ySegments - 1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (xSegments) * flUWidth, flTopV + (float) ( ySegments - 1 ) * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom right (x+1), (y+1)
meshBuilder.Position3f( flLeftX + (float) (xSegments) * flWidth, flTopY - (float) ( ySegments ) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (xSegments) * flUWidth, flTopV + (float)( ySegments ) * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom left (y+1)
meshBuilder.Position3f( flLeftX + (float) 0 * flWidth, flTopY - (float) ( ySegments ) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) 0 * flUWidth, flTopV + (float)( ySegments ) * flVHeight);
meshBuilder.AdvanceVertex();
// Left Bar
// Top left
meshBuilder.Position3f( flLeftX + (float) 0 * flWidth, flTopY - (float) 1 * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) 0 * flUWidth, flTopV + (float) 1 * flVHeight);
meshBuilder.AdvanceVertex();
// Top right (x+1)
meshBuilder.Position3f( flLeftX + (float) (0+1) * flWidth, flTopY - (float) 1 * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (0+1) * flUWidth, flTopV + (float) 1 * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom right (x+1), (y+1)
meshBuilder.Position3f( flLeftX + (float) (0+1) * flWidth, flTopY - (float) (ySegments - 1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (0+1) * flUWidth, flTopV + (float)(ySegments - 1) * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom left (y+1)
meshBuilder.Position3f( flLeftX + (float) 0 * flWidth, flTopY - (float) (ySegments - 1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) 0 * flUWidth, flTopV + (float)(ySegments - 1) * flVHeight);
meshBuilder.AdvanceVertex();
// Right Bar
// Top left
meshBuilder.Position3f( flLeftX + (float) (xSegments - 1) * flWidth, flTopY - (float) 1 * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (xSegments - 1) * flUWidth, flTopV + (float) 1 * flVHeight);
meshBuilder.AdvanceVertex();
// Top right (x+1)
meshBuilder.Position3f( flLeftX + (float) (xSegments) * flWidth, flTopY - (float) 1 * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (xSegments) * flUWidth, flTopV + (float) 1 * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom right (x+1), (y+1)
meshBuilder.Position3f( flLeftX + (float) (xSegments) * flWidth, flTopY - (float) (ySegments - 1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (xSegments) * flUWidth, flTopV + (float)(ySegments - 1) * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom left (y+1)
meshBuilder.Position3f( flLeftX + (float) (xSegments - 1) * flWidth, flTopY - (float) (ySegments - 1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (xSegments - 1) * flUWidth, flTopV + (float)(ySegments - 1) * flVHeight);
meshBuilder.AdvanceVertex();
#if 0
for ( int x=0; x < xSegments; x++ )
{
for ( int y=0; y < ySegments; y++ )
{
if ( ( x == 1 || x == 2 ) && ( y == 1 || y == 2 ) )
{ // skip the center 4 segments
continue;
}
// Top left
meshBuilder.Position3f( flLeftX + (float) x * flWidth, flTopY - (float) y * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) x * flUWidth, flTopV + (float) y * flVHeight);
meshBuilder.AdvanceVertex();
// Top right (x+1)
meshBuilder.Position3f( flLeftX + (float) (x+1) * flWidth, flTopY - (float) y * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (x+1) * flUWidth, flTopV + (float) y * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom right (x+1), (y+1)
meshBuilder.Position3f( flLeftX + (float) (x+1) * flWidth, flTopY - (float) (y+1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) (x+1) * flUWidth, flTopV + (float)(y+1) * flVHeight);
meshBuilder.AdvanceVertex();
// Bottom left (y+1)
meshBuilder.Position3f( flLeftX + (float) x * flWidth, flTopY - (float) (y+1) * flHeight, 0.0f );
meshBuilder.TexCoord2f( 0, flLeftU + (float) x * flUWidth, flTopV + (float)(y+1) * flVHeight);
meshBuilder.AdvanceVertex();
}
}
#endif
meshBuilder.End();
pMesh->Draw();
pRenderContext->MatrixMode( MATERIAL_VIEW );
pRenderContext->PopMatrix();
pRenderContext->MatrixMode( MATERIAL_PROJECTION );
pRenderContext->PopMatrix();
}
static ConVar r_queued_post_processing( "r_queued_post_processing", "0" );
// How much to dice up the screen during post-processing on 360
// This has really marginal effects, but 4x1 does seem vaguely better for post-processing
static ConVar mat_postprocess_x( "mat_postprocess_x", "4" );
static ConVar mat_postprocess_y( "mat_postprocess_y", "1" );
void DoEnginePostProcessing( int x, int y, int w, int h, bool bFlashlightIsOn, bool bPostVGui )
{
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "%s", __FUNCTION__ );
CMatRenderContextPtr pRenderContext( materials );
if ( g_bDumpRenderTargets )
{
g_bDumpRenderTargets = false; // Turn off from previous frame
}
if ( mat_dump_rts.GetBool() )
{
g_bDumpRenderTargets = true; // Dump intermediate render targets this frame
s_nRTIndex = 0; // Used for numbering the TGA files for easy browsing
mat_dump_rts.SetValue( 0 ); // We only want to capture one frame, on rising edge of this convar
DumpTGAofRenderTarget( w, h, "BackBuffer" );
}
#if defined( _X360 )
pRenderContext->PushVertexShaderGPRAllocation( 16 ); //max out pixel shader threads
#endif
if ( r_queued_post_processing.GetInt() )
{
ICallQueue *pCallQueue = pRenderContext->GetCallQueue();
if ( pCallQueue )
{
pCallQueue->QueueCall( DoEnginePostProcessing, x, y, w, h, bFlashlightIsOn, bPostVGui );
return;
}
}
float flBloomScale = GetBloomAmount();
HDRType_t hdrType = g_pMaterialSystemHardwareConfig->GetHDRType();
g_bFlashlightIsOn = bFlashlightIsOn;
// Use the appropriate autoexposure min / max settings.
// Mapmaker's overrides the convar settings.
float flAutoExposureMin;
float flAutoExposureMax;
GetExposureRange( &flAutoExposureMin, &flAutoExposureMax );
if ( mat_debug_bloom.GetInt() == 1 )
{
DrawBloomDebugBoxes( pRenderContext );
}
switch( hdrType )
{
case HDR_TYPE_NONE:
case HDR_TYPE_INTEGER:
{
s_bScreenEffectTextureIsUpdated = false;
if ( hdrType != HDR_TYPE_NONE )
{
DoPreBloomTonemapping( pRenderContext, x, y, w, h, flAutoExposureMin, flAutoExposureMax );
}
// Set software-AA on by default for 360
if ( mat_software_aa_strength.GetFloat() == -1.0f )
{
if ( IsX360() )
{
mat_software_aa_strength.SetValue( 1.0f );
if ( g_pMaterialSystem->GetCurrentConfigForVideoCard().m_VideoMode.m_Height > 480 )
{
mat_software_aa_quality.SetValue( 0 );
}
else
{
// For standard-def, we have fewer pixels so we can afford 'high quality' mode (5->9 taps/pixel)
mat_software_aa_quality.SetValue( 1 );
}
}
else
{
mat_software_aa_strength.SetValue( 0.0f );
}
}
// Same trick for setting up the vgui aa strength
if ( mat_software_aa_strength_vgui.GetFloat() == -1.0f )
{
if ( IsX360() && (g_pMaterialSystem->GetCurrentConfigForVideoCard().m_VideoMode.m_Height == 720) )
{
mat_software_aa_strength_vgui.SetValue( 2.0f );
}
else
{
mat_software_aa_strength_vgui.SetValue( 1.0f );
}
}
float flAAStrength;
// We do a second AA blur pass over the TF intro menus. use mat_software_aa_strength_vgui there instead
if ( IsX360() && bPostVGui )
{
flAAStrength = mat_software_aa_strength_vgui.GetFloat();
}
else
{
flAAStrength = mat_software_aa_strength.GetFloat();
}
static ConVarRef mat_colorcorrection( "mat_colorcorrection" );
// bloom, software-AA and colour-correction (applied in 1 pass, after generation of the bloom texture)
bool bPerformSoftwareAA = IsX360() && ( engine->GetDXSupportLevel() >= 90 ) && ( flAAStrength != 0.0f );
bool bPerformBloom = !bPostVGui && ( flBloomScale > 0.0f ) && ( engine->GetDXSupportLevel() >= 90 );
bool bPerformColCorrect = !bPostVGui &&
( g_pMaterialSystemHardwareConfig->GetDXSupportLevel() >= 90) &&
( g_pMaterialSystemHardwareConfig->GetHDRType() != HDR_TYPE_FLOAT ) &&
g_pColorCorrectionMgr->HasNonZeroColorCorrectionWeights() &&
mat_colorcorrection.GetInt();
bool bSplitScreenHDR = mat_show_ab_hdr.GetInt();
pRenderContext->EnableColorCorrection( bPerformColCorrect );
if ( bPerformBloom || bPerformSoftwareAA || bPerformColCorrect )
{
tmZone( TELEMETRY_LEVEL0, TMZF_NONE, "ColorCorrection" );
ITexture *pSrc = materials->FindTexture( "_rt_FullFrameFB", TEXTURE_GROUP_RENDER_TARGET );
int nSrcWidth = pSrc->GetActualWidth();
int nSrcHeight = pSrc->GetActualHeight();
ITexture *dest_rt1 = materials->FindTexture( "_rt_SmallFB1", TEXTURE_GROUP_RENDER_TARGET );
if ( !s_bScreenEffectTextureIsUpdated )
{
// NOTE: UpdateScreenEffectTexture() uses StretchRect, so _rt_FullFrameFB is always 100%
// filled, even when the viewport is not fullscreen (e.g. with 'mat_viewportscale 0.5')
UpdateScreenEffectTexture( 0, x, y, w, h, true );
s_bScreenEffectTextureIsUpdated = true;
}
if ( bPerformBloom )
{
Generate8BitBloomTexture( pRenderContext, flBloomScale, x, y, w, h );
}
// Now add bloom (dest_rt0) to the framebuffer and perform software anti-aliasing and
// colour correction, all in one pass (improves performance, reduces quantization errors)
//
// First, set up texel coords (in the bloom and fb textures) at the centres of the outer pixel of the viewport:
Vector4D fullViewportPostSrcCorners( 0.0f, -0.5f, nSrcWidth/4-1, nSrcHeight/4-1 );
Vector4D fullViewportPostDestCorners( 0.0f, 0.0f, nSrcWidth - 1, nSrcHeight - 1 );
Rect_t fullViewportPostDestRect = { x, y, w, h };
Vector2D destTexSize( nSrcWidth, nSrcHeight );
// When the viewport is not fullscreen, the UV-space size of a pixel changes
// (due to a stretchrect blit being used in UpdateScreenEffectTexture()), so
// we need to adjust the corner-pixel UVs sent to our drawrect call:
Vector2D uvScale( ( nSrcWidth - ( nSrcWidth / (float)w ) ) / ( nSrcWidth - 1 ),
( nSrcHeight - ( nSrcHeight / (float)h ) ) / ( nSrcHeight - 1 ) );
CenterScaleQuadUVs( fullViewportPostSrcCorners, uvScale );
CenterScaleQuadUVs( fullViewportPostDestCorners, uvScale );
Rect_t partialViewportPostDestRect = fullViewportPostDestRect;
Vector4D partialViewportPostSrcCorners = fullViewportPostSrcCorners;
if ( debug_postproc.GetInt() == 2 )
{
// Restrict the post effects to the centre quarter of the screen
// (we only use a portion of the bloom texture, so this *does* affect bloom texture UVs)
partialViewportPostDestRect.x += 0.25f*fullViewportPostDestRect.width;
partialViewportPostDestRect.y += 0.25f*fullViewportPostDestRect.height;
partialViewportPostDestRect.width -= 0.50f*fullViewportPostDestRect.width;
partialViewportPostDestRect.height -= 0.50f*fullViewportPostDestRect.height;
// This math interprets texel coords as being at corner pixel centers (*not* at corner vertices):
Vector2D uvScalePost( 1.0f - ( (w / 2) / (float)(w - 1) ),
1.0f - ( (h / 2) / (float)(h - 1) ) );
CenterScaleQuadUVs( partialViewportPostSrcCorners, uvScalePost );
}
// Temporary hack... Color correction was crashing on the first frame
// when run outside the debugger for some mods (DoD). This forces it to skip
// a frame, ensuring we don't get the weird texture crash we otherwise would.
// FIXME: This will be removed when the true cause is found [added: Main CL 144694]
static bool bFirstFrame = !IsX360();
if( !bFirstFrame || !bPerformColCorrect )
{
bool bFBUpdated = false;
if ( mat_postprocessing_combine.GetInt() )
{
// Perform post-processing in one combined pass
IMaterial *post_mat = CEnginePostMaterialProxy::SetupEnginePostMaterial( fullViewportPostSrcCorners, fullViewportPostDestCorners, destTexSize, bPerformSoftwareAA, bPerformBloom, bPerformColCorrect, flAAStrength );
if (bSplitScreenHDR)
{
pRenderContext->SetScissorRect( partialViewportPostDestRect.width / 2, 0, partialViewportPostDestRect.width, partialViewportPostDestRect.height, true );
}
pRenderContext->DrawScreenSpaceRectangle(post_mat,
// TomF - offset already done by the viewport.
0,0, //partialViewportPostDestRect.x, partialViewportPostDestRect.y,
partialViewportPostDestRect.width, partialViewportPostDestRect.height,
partialViewportPostSrcCorners.x, partialViewportPostSrcCorners.y,
partialViewportPostSrcCorners.z, partialViewportPostSrcCorners.w,
dest_rt1->GetActualWidth(),dest_rt1->GetActualHeight(),
GetClientWorldEntity()->GetClientRenderable(),
mat_postprocess_x.GetInt(), mat_postprocess_y.GetInt() );
if (bSplitScreenHDR)
{
pRenderContext->SetScissorRect( -1, -1, -1, -1, false );
}
bFBUpdated = true;
}
else
{
// Perform post-processing in three separate passes
if ( bPerformSoftwareAA )
{
IMaterial *aa_mat = CEnginePostMaterialProxy::SetupEnginePostMaterial( fullViewportPostSrcCorners, fullViewportPostDestCorners, destTexSize, bPerformSoftwareAA, false, false, flAAStrength );
if (bSplitScreenHDR)
{
pRenderContext->SetScissorRect( partialViewportPostDestRect.width / 2, 0, partialViewportPostDestRect.width, partialViewportPostDestRect.height, true );
}
pRenderContext->DrawScreenSpaceRectangle(aa_mat,
// TODO: check if offsets should be 0,0 here, as with the combined-pass case
partialViewportPostDestRect.x, partialViewportPostDestRect.y,
partialViewportPostDestRect.width, partialViewportPostDestRect.height,
partialViewportPostSrcCorners.x, partialViewportPostSrcCorners.y,
partialViewportPostSrcCorners.z, partialViewportPostSrcCorners.w,
dest_rt1->GetActualWidth(),dest_rt1->GetActualHeight(),
GetClientWorldEntity()->GetClientRenderable());
if (bSplitScreenHDR)
{
pRenderContext->SetScissorRect( -1, -1, -1, -1, false );
}
bFBUpdated = true;
}
if ( bPerformBloom )
{
IMaterial *bloom_mat = CEnginePostMaterialProxy::SetupEnginePostMaterial( fullViewportPostSrcCorners, fullViewportPostDestCorners, destTexSize, false, bPerformBloom, false, flAAStrength );
if (bSplitScreenHDR)
{
pRenderContext->SetScissorRect( partialViewportPostDestRect.width / 2, 0, partialViewportPostDestRect.width, partialViewportPostDestRect.height, true );
}
pRenderContext->DrawScreenSpaceRectangle(bloom_mat,
// TODO: check if offsets should be 0,0 here, as with the combined-pass case
partialViewportPostDestRect.x, partialViewportPostDestRect.y,
partialViewportPostDestRect.width, partialViewportPostDestRect.height,
partialViewportPostSrcCorners.x, partialViewportPostSrcCorners.y,
partialViewportPostSrcCorners.z, partialViewportPostSrcCorners.w,
dest_rt1->GetActualWidth(),dest_rt1->GetActualHeight(),
GetClientWorldEntity()->GetClientRenderable());
if (bSplitScreenHDR)
{
pRenderContext->SetScissorRect( -1, -1, -1, -1, false );
}
bFBUpdated = true;
}
if ( bPerformColCorrect )
{
if ( bFBUpdated )
{
Rect_t actualRect;
UpdateScreenEffectTexture( 0, x, y, w, h, false, &actualRect );
}
IMaterial *colcorrect_mat = CEnginePostMaterialProxy::SetupEnginePostMaterial( fullViewportPostSrcCorners, fullViewportPostDestCorners, destTexSize, false, false, bPerformColCorrect, flAAStrength );
if (bSplitScreenHDR)
{
pRenderContext->SetScissorRect( partialViewportPostDestRect.width / 2, 0, partialViewportPostDestRect.width, partialViewportPostDestRect.height, true );
}
pRenderContext->DrawScreenSpaceRectangle(colcorrect_mat,
// TODO: check if offsets should be 0,0 here, as with the combined-pass case
partialViewportPostDestRect.x, partialViewportPostDestRect.y,
partialViewportPostDestRect.width, partialViewportPostDestRect.height,
partialViewportPostSrcCorners.x, partialViewportPostSrcCorners.y,
partialViewportPostSrcCorners.z, partialViewportPostSrcCorners.w,
dest_rt1->GetActualWidth(),dest_rt1->GetActualHeight(),
GetClientWorldEntity()->GetClientRenderable());
if (bSplitScreenHDR)
{
pRenderContext->SetScissorRect( -1, -1, -1, -1, false );
}
bFBUpdated = true;
}
}
bool bVisionOverride = ( localplayer_visionflags.GetInt() & ( 0x01 ) ); // Pyro-vision Goggles
if ( bVisionOverride && g_pMaterialSystemHardwareConfig->SupportsPixelShaders_2_0() && pyro_vignette.GetInt() > 0 )
{
if ( bFBUpdated )
{
Rect_t actualRect;
UpdateScreenEffectTexture( 0, x, y, w, h, false, &actualRect );
}
DrawPyroVignette(
// TODO: check if offsets should be 0,0 here, as with the combined-pass case
partialViewportPostDestRect.x, partialViewportPostDestRect.y,
partialViewportPostDestRect.width, partialViewportPostDestRect.height,
partialViewportPostSrcCorners.x, partialViewportPostSrcCorners.y,
partialViewportPostSrcCorners.z, partialViewportPostSrcCorners.w,
GetClientWorldEntity()->GetClientRenderable() );
IMaterial *pPyroVisionPostMaterial = materials->FindMaterial( "dev/pyro_post", TEXTURE_GROUP_OTHER, true);
DrawPyroPost( pPyroVisionPostMaterial,
// TODO: check if offsets should be 0,0 here, as with the combined-pass case
partialViewportPostDestRect.x, partialViewportPostDestRect.y,
partialViewportPostDestRect.width, partialViewportPostDestRect.height,
partialViewportPostSrcCorners.x, partialViewportPostSrcCorners.y,
partialViewportPostSrcCorners.z, partialViewportPostSrcCorners.w,
dest_rt1->GetActualWidth(),dest_rt1->GetActualHeight(),
GetClientWorldEntity()->GetClientRenderable() );
}
if ( g_bDumpRenderTargets )
{
DumpTGAofRenderTarget( partialViewportPostDestRect.width, partialViewportPostDestRect.height, "EnginePost" );
}
}
bFirstFrame = false;
}
if ( hdrType != HDR_TYPE_NONE )
{
DoPostBloomTonemapping( pRenderContext, x, y, w, h, flAutoExposureMin, flAutoExposureMax );
}
}
break;
case HDR_TYPE_FLOAT:
{
int dest_width,dest_height;
pRenderContext->GetRenderTargetDimensions( dest_width, dest_height );
if (mat_dynamic_tonemapping.GetInt() || mat_show_histogram.GetInt())
{
g_HDR_HistogramSystem.Update();
// Warning("avg_lum=%f\n",g_HDR_HistogramSystem.GetTargetTonemapScalar());
if ( mat_dynamic_tonemapping.GetInt() )
{
float avg_lum = MAX( 0.0001, g_HDR_HistogramSystem.GetTargetTonemapScalar() );
float scalevalue = MAX( flAutoExposureMin,
MIN( flAutoExposureMax, 0.18 / avg_lum ));
pRenderContext->SetGoalToneMappingScale( scalevalue );
mat_hdr_tonemapscale.SetValue( scalevalue );
}
}
IMaterial *pBloomMaterial;
pBloomMaterial = materials->FindMaterial( "dev/floattoscreen_combine", "" );
IMaterialVar *pBloomAmountVar = pBloomMaterial->FindVar( "$bloomamount", NULL );
pBloomAmountVar->SetFloatValue( flBloomScale );
PostProcessingPass* selectedHDR;
if ( flBloomScale > 0.0 )
{
selectedHDR = HDRFinal_Float;
}
else
{
selectedHDR = HDRFinal_Float_NoBloom;
}
if (mat_show_ab_hdr.GetInt())
{
ClipBox splitScreenClip;
splitScreenClip.m_minx = splitScreenClip.m_miny = 0;
// Left half
splitScreenClip.m_maxx = dest_width / 2;
splitScreenClip.m_maxy = dest_height - 1;
ApplyPostProcessingPasses(HDRSimulate_NonHDR, &splitScreenClip);
// Right half
splitScreenClip.m_minx = splitScreenClip.m_maxx;
splitScreenClip.m_maxx = dest_width - 1;
ApplyPostProcessingPasses(selectedHDR, &splitScreenClip);
}
else
{
ApplyPostProcessingPasses(selectedHDR);
}
pRenderContext->SetRenderTarget(NULL);
if ( mat_show_histogram.GetInt() && (engine->GetDXSupportLevel()>=90))
g_HDR_HistogramSystem.DisplayHistogram();
if ( mat_dynamic_tonemapping.GetInt() )
{
float avg_lum = MAX( 0.0001, g_HDR_HistogramSystem.GetTargetTonemapScalar() );
float scalevalue = MAX( flAutoExposureMin,
MIN( flAutoExposureMax, 0.023 / avg_lum ));
SetToneMapScale( pRenderContext, scalevalue, flAutoExposureMin, flAutoExposureMax );
}
pRenderContext->SetRenderTarget( NULL );
break;
}
}
#if defined( _X360 )
pRenderContext->PopVertexShaderGPRAllocation();
#endif
}
// Motion Blur Material Proxy =========================================================================================
static float g_vMotionBlurValues[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
class CMotionBlurMaterialProxy : public CEntityMaterialProxy
{
public:
CMotionBlurMaterialProxy();
virtual ~CMotionBlurMaterialProxy();
virtual bool Init( IMaterial *pMaterial, KeyValues *pKeyValues );
virtual void OnBind( C_BaseEntity *pEntity );
virtual IMaterial *GetMaterial();
private:
IMaterialVar *m_pMaterialParam;
};
CMotionBlurMaterialProxy::CMotionBlurMaterialProxy()
{
m_pMaterialParam = NULL;
}
CMotionBlurMaterialProxy::~CMotionBlurMaterialProxy()
{
// Do nothing
}
bool CMotionBlurMaterialProxy::Init( IMaterial *pMaterial, KeyValues *pKeyValues )
{
bool bFoundVar = false;
m_pMaterialParam = pMaterial->FindVar( "$MotionBlurInternal", &bFoundVar, false );
if ( bFoundVar == false)
return false;
return true;
}
void CMotionBlurMaterialProxy::OnBind( C_BaseEntity *pEnt )
{
if ( m_pMaterialParam != NULL )
{
m_pMaterialParam->SetVecValue( g_vMotionBlurValues, 4 );
}
}
IMaterial *CMotionBlurMaterialProxy::GetMaterial()
{
if ( m_pMaterialParam == NULL)
return NULL;
return m_pMaterialParam->GetOwningMaterial();
}
EXPOSE_INTERFACE( CMotionBlurMaterialProxy, IMaterialProxy, "MotionBlur" IMATERIAL_PROXY_INTERFACE_VERSION );
//=====================================================================================================================
// Image-space Motion Blur ============================================================================================
//=====================================================================================================================
ConVar mat_motion_blur_forward_enabled( "mat_motion_blur_forward_enabled", "0" );
ConVar mat_motion_blur_falling_min( "mat_motion_blur_falling_min", "10.0" );
ConVar mat_motion_blur_falling_max( "mat_motion_blur_falling_max", "20.0" );
ConVar mat_motion_blur_falling_intensity( "mat_motion_blur_falling_intensity", "1.0" );
//ConVar mat_motion_blur_roll_intensity( "mat_motion_blur_roll_intensity", "1.0" );
ConVar mat_motion_blur_rotation_intensity( "mat_motion_blur_rotation_intensity", "1.0" );
ConVar mat_motion_blur_strength( "mat_motion_blur_strength", "1.0" );
void DoImageSpaceMotionBlur( const CViewSetup &viewBlur, int x, int y, int w, int h )
{
#ifdef CSS_PERF_TEST
return;
#endif
static ConVarRef mat_motion_blur_enabled( "mat_motion_blur_enabled" );
if ( ( !mat_motion_blur_enabled.GetInt() ) || ( g_pMaterialSystemHardwareConfig->GetDXSupportLevel() < 90 ) )
{
return;
}
//======================================================================================================//
// Get these convars here to make it easier to remove them later and to default each client differently //
//======================================================================================================//
float flMotionBlurRotationIntensity = mat_motion_blur_rotation_intensity.GetFloat() * 0.15f; // The default is to not blur past 15% of the range
float flMotionBlurRollIntensity = 0.3f; // * mat_motion_blur_roll_intensity.GetFloat(); // The default is to not blur past 30% of the range
float flMotionBlurFallingIntensity = mat_motion_blur_falling_intensity.GetFloat();
float flMotionBlurFallingMin = mat_motion_blur_falling_min.GetFloat();
float flMotionBlurFallingMax = mat_motion_blur_falling_max.GetFloat();
float flMotionBlurGlobalStrength = mat_motion_blur_strength.GetFloat();
//===============================================================================//
// Set global g_vMotionBlurValues[4] values so material proxy can get the values //
//===============================================================================//
if ( true )
{
//=====================//
// Previous frame data //
//=====================//
static float s_flLastTimeUpdate = 0.0f;
static float s_flPreviousPitch = 0.0f;
static float s_flPreviousYaw = 0.0f;
static float s_vPreviousPositon[3] = { 0.0f, 0.0f, 0.0f };
static matrix3x4_t s_mPreviousFrameBasisVectors;
static float s_flNoRotationalMotionBlurUntil = 0.0f;
//float vPreviousSideVec[3] = { s_mPreviousFrameBasisVectors[0][1], s_mPreviousFrameBasisVectors[1][1], s_mPreviousFrameBasisVectors[2][1] };
//float vPreviousForwardVec[3] = { s_mPreviousFrameBasisVectors[0][0], s_mPreviousFrameBasisVectors[1][0], s_mPreviousFrameBasisVectors[2][0] };
//float vPreviousUpVec[3] = { s_mPreviousFrameBasisVectors[0][2], s_mPreviousFrameBasisVectors[1][2], s_mPreviousFrameBasisVectors[2][2] };
float flTimeElapsed = gpGlobals->realtime - s_flLastTimeUpdate;
//===================================//
// Get current pitch & wrap to +-180 //
//===================================//
float flCurrentPitch = viewBlur.angles[PITCH];
while ( flCurrentPitch > 180.0f )
flCurrentPitch -= 360.0f;
while ( flCurrentPitch < -180.0f )
flCurrentPitch += 360.0f;
//=================================//
// Get current yaw & wrap to +-180 //
//=================================//
float flCurrentYaw = viewBlur.angles[YAW];
while ( flCurrentYaw > 180.0f )
flCurrentYaw -= 360.0f;
while ( flCurrentYaw < -180.0f )
flCurrentYaw += 360.0f;
//engine->Con_NPrintf( 0, "Blur Pitch: %6.2f Yaw: %6.2f", flCurrentPitch, flCurrentYaw );
//engine->Con_NPrintf( 1, "Blur FOV: %6.2f Aspect: %6.2f Ortho: %s", view.fov, view.m_flAspectRatio, view.m_bOrtho ? "Yes" : "No" );
//===========================//
// Get current basis vectors //
//===========================//
matrix3x4_t mCurrentBasisVectors;
AngleMatrix( viewBlur.angles, mCurrentBasisVectors );
float vCurrentSideVec[3] = { mCurrentBasisVectors[0][1], mCurrentBasisVectors[1][1], mCurrentBasisVectors[2][1] };
float vCurrentForwardVec[3] = { mCurrentBasisVectors[0][0], mCurrentBasisVectors[1][0], mCurrentBasisVectors[2][0] };
//float vCurrentUpVec[3] = { mCurrentBasisVectors[0][2], mCurrentBasisVectors[1][2], mCurrentBasisVectors[2][2] };
//======================//
// Get current position //
//======================//
float vCurrentPosition[3] = { viewBlur.origin.x, viewBlur.origin.y, viewBlur.origin.z };
//===============================================================//
// Evaluate change in position to determine if we need to update //
//===============================================================//
float vPositionChange[3] = { 0.0f, 0.0f, 0.0f };
VectorSubtract( s_vPreviousPositon, vCurrentPosition, vPositionChange );
if ( ( VectorLength( vPositionChange ) > 30.0f ) && ( flTimeElapsed >= 0.5f ) )
{
//=======================================================//
// If we moved a far distance in one frame and more than //
// half a second elapsed, disable motion blur this frame //
//=======================================================//
//engine->Con_NPrintf( 8, " Pos change && time > 0.5 seconds %f ", gpGlobals->realtime );
g_vMotionBlurValues[0] = 0.0f;
g_vMotionBlurValues[1] = 0.0f;
g_vMotionBlurValues[2] = 0.0f;
g_vMotionBlurValues[3] = 0.0f;
}
else if ( flTimeElapsed > ( 1.0f / 15.0f ) )
{
//==========================================//
// If slower than 15 fps, don't motion blur //
//==========================================//
g_vMotionBlurValues[0] = 0.0f;
g_vMotionBlurValues[1] = 0.0f;
g_vMotionBlurValues[2] = 0.0f;
g_vMotionBlurValues[3] = 0.0f;
}
else if ( VectorLength( vPositionChange ) > 50.0f )
{
//================================================================================//
// We moved a far distance in a frame, use the same motion blur as last frame //
// because I think we just went through a portal (should we ifdef this behavior?) //
//================================================================================//
//engine->Con_NPrintf( 8, " Position changed %f units @ %.2f time ", VectorLength( vPositionChange ), gpGlobals->realtime );
s_flNoRotationalMotionBlurUntil = gpGlobals->realtime + 1.0f; // Wait a second until the portal craziness calms down
}
else
{
//====================//
// Normal update path //
//====================//
// Compute horizontal and vertical fov
float flHorizontalFov = viewBlur.fov;
float flVerticalFov = (viewBlur.m_flAspectRatio <= 0.0f ) ? (viewBlur.fov ) : (viewBlur.fov / viewBlur.m_flAspectRatio );
//engine->Con_NPrintf( 2, "Horizontal Fov: %6.2f Vertical Fov: %6.2f", flHorizontalFov, flVerticalFov );
//=====================//
// Forward motion blur //
//=====================//
float flViewDotMotion = DotProduct( vCurrentForwardVec, vPositionChange );
if ( mat_motion_blur_forward_enabled.GetBool() ) // Want forward and falling
g_vMotionBlurValues[2] = flViewDotMotion;
else // Falling only
g_vMotionBlurValues[2] = flViewDotMotion * fabs( vCurrentForwardVec[2] ); // Only want this if we're looking up or down;
//====================================//
// Yaw (Compensate for circle strafe) //
//====================================//
float flSideDotMotion = DotProduct( vCurrentSideVec, vPositionChange );
float flYawDiffOriginal = s_flPreviousYaw - flCurrentYaw;
if ( ( ( s_flPreviousYaw - flCurrentYaw > 180.0f ) || ( s_flPreviousYaw - flCurrentYaw < -180.0f ) ) &&
( ( s_flPreviousYaw + flCurrentYaw > -180.0f ) && ( s_flPreviousYaw + flCurrentYaw < 180.0f ) ) )
flYawDiffOriginal = s_flPreviousYaw + flCurrentYaw;
float flYawDiffAdjusted = flYawDiffOriginal + ( flSideDotMotion / 3.0f ); // Yes, 3.0 is a magic number, sue me
// Make sure the adjustment only lessens the effect, not magnify it or reverse it
if ( flYawDiffOriginal < 0.0f )
flYawDiffAdjusted = clamp ( flYawDiffAdjusted, flYawDiffOriginal, 0.0f );
else
flYawDiffAdjusted = clamp ( flYawDiffAdjusted, 0.0f, flYawDiffOriginal );
// Use pitch to dampen yaw
float flUndampenedYaw = flYawDiffAdjusted / flHorizontalFov;
g_vMotionBlurValues[0] = flUndampenedYaw * ( 1.0f - ( fabs( flCurrentPitch ) / 90.0f ) ); // Dampen horizontal yaw blur based on pitch
//engine->Con_NPrintf( 4, "flSideDotMotion: %6.2f yaw diff: %6.2f ( %6.2f, %6.2f )", flSideDotMotion, ( s_flPreviousYaw - flCurrentYaw ), flYawDiffOriginal, flYawDiffAdjusted );
//=======================================//
// Pitch (Compensate for forward motion) //
//=======================================//
float flPitchCompensateMask = 1.0f - ( ( 1.0f - fabs( vCurrentForwardVec[2] ) ) * ( 1.0f - fabs( vCurrentForwardVec[2] ) ) );
float flPitchDiffOriginal = s_flPreviousPitch - flCurrentPitch;
float flPitchDiffAdjusted = flPitchDiffOriginal;
if ( flCurrentPitch > 0.0f )
flPitchDiffAdjusted = flPitchDiffOriginal - ( ( flViewDotMotion / 2.0f ) * flPitchCompensateMask ); // Yes, 2.0 is a magic number, sue me
else
flPitchDiffAdjusted = flPitchDiffOriginal + ( ( flViewDotMotion / 2.0f ) * flPitchCompensateMask ); // Yes, 2.0 is a magic number, sue me
// Make sure the adjustment only lessens the effect, not magnify it or reverse it
if ( flPitchDiffOriginal < 0.0f )
flPitchDiffAdjusted = clamp ( flPitchDiffAdjusted, flPitchDiffOriginal, 0.0f );
else
flPitchDiffAdjusted = clamp ( flPitchDiffAdjusted, 0.0f, flPitchDiffOriginal );
g_vMotionBlurValues[1] = flPitchDiffAdjusted / flVerticalFov;
//engine->Con_NPrintf( 5, "flViewDotMotion %6.2f, flPitchCompensateMask %6.2f, flPitchDiffOriginal %6.2f, flPitchDiffAdjusted %6.2f, g_vMotionBlurValues[1] %6.2f", flViewDotMotion, flPitchCompensateMask, flPitchDiffOriginal, flPitchDiffAdjusted, g_vMotionBlurValues[1]);
//========================================================//
// Roll (Enabled when we're looking down and yaw changes) //
//========================================================//
g_vMotionBlurValues[3] = flUndampenedYaw; // Roll starts out as undampened yaw intensity and is then scaled by pitch
g_vMotionBlurValues[3] *= ( fabs( flCurrentPitch ) / 90.0f ) * ( fabs( flCurrentPitch ) / 90.0f ) * ( fabs( flCurrentPitch ) / 90.0f ); // Dampen roll based on pitch^3
//engine->Con_NPrintf( 4, "[2] before scale and bias: %6.2f", g_vMotionBlurValues[2] );
//engine->Con_NPrintf( 5, "[3] before scale and bias: %6.2f", g_vMotionBlurValues[3] );
//==============================================================//
// Time-adjust falling effect until we can do something smarter //
//==============================================================//
if ( flTimeElapsed > 0.0f )
g_vMotionBlurValues[2] /= flTimeElapsed * 30.0f; // 1/30th of a second?
else
g_vMotionBlurValues[2] = 0.0f;
// Scale and bias values after time adjustment
g_vMotionBlurValues[2] = clamp( ( fabs( g_vMotionBlurValues[2] ) - flMotionBlurFallingMin ) / ( flMotionBlurFallingMax - flMotionBlurFallingMin ), 0.0f, 1.0f ) * ( g_vMotionBlurValues[2] >= 0.0f ? 1.0f : -1.0f );
g_vMotionBlurValues[2] /= 30.0f; // To counter-adjust for time adjustment above
//=================//
// Apply intensity //
//=================//
g_vMotionBlurValues[0] *= flMotionBlurRotationIntensity * flMotionBlurGlobalStrength;
g_vMotionBlurValues[1] *= flMotionBlurRotationIntensity * flMotionBlurGlobalStrength;
g_vMotionBlurValues[2] *= flMotionBlurFallingIntensity * flMotionBlurGlobalStrength;
g_vMotionBlurValues[3] *= flMotionBlurRollIntensity * flMotionBlurGlobalStrength;
//===============================================================//
// Dampen motion blur from 100%-0% as fps drops from 50fps-30fps //
//===============================================================//
if ( !IsX360() ) // I'm not doing this on the 360 yet since I can't test it
{
float flSlowFps = 30.0f;
float flFastFps = 50.0f;
float flCurrentFps = ( flTimeElapsed > 0.0f ) ? ( 1.0f / flTimeElapsed ) : 0.0f;
float flDampenFactor = clamp( ( ( flCurrentFps - flSlowFps ) / ( flFastFps - flSlowFps ) ), 0.0f, 1.0f );
//engine->Con_NPrintf( 4, "gpGlobals->realtime %.2f gpGlobals->curtime %.2f", gpGlobals->realtime, gpGlobals->curtime );
//engine->Con_NPrintf( 5, "flCurrentFps %.2f", flCurrentFps );
//engine->Con_NPrintf( 7, "flTimeElapsed %.2f", flTimeElapsed );
g_vMotionBlurValues[0] *= flDampenFactor;
g_vMotionBlurValues[1] *= flDampenFactor;
g_vMotionBlurValues[2] *= flDampenFactor;
g_vMotionBlurValues[3] *= flDampenFactor;
//engine->Con_NPrintf( 6, "Dampen: %.2f", flDampenFactor );
}
//engine->Con_NPrintf( 6, "Final values: { %6.2f%%, %6.2f%%, %6.2f%%, %6.2f%% }", g_vMotionBlurValues[0]*100.0f, g_vMotionBlurValues[1]*100.0f, g_vMotionBlurValues[2]*100.0f, g_vMotionBlurValues[3]*100.0f );
}
//============================================//
// Zero out blur if still in that time window //
//============================================//
if ( gpGlobals->realtime < s_flNoRotationalMotionBlurUntil )
{
//engine->Con_NPrintf( 9, " No Rotation @ %f ", gpGlobals->realtime );
// Zero out rotational blur but leave forward/falling blur alone
g_vMotionBlurValues[0] = 0.0f; // X
g_vMotionBlurValues[1] = 0.0f; // Y
g_vMotionBlurValues[3] = 0.0f; // Roll
}
else
{
s_flNoRotationalMotionBlurUntil = 0.0f;
}
//====================================//
// Store current frame for next frame //
//====================================//
VectorCopy( vCurrentPosition, s_vPreviousPositon );
s_mPreviousFrameBasisVectors = mCurrentBasisVectors;
s_flPreviousPitch = flCurrentPitch;
s_flPreviousYaw = flCurrentYaw;
s_flLastTimeUpdate = gpGlobals->realtime;
}
//=============================================================================================//
// Render quad and let material proxy pick up the g_vMotionBlurValues[4] values just set above //
//=============================================================================================//
if ( true )
{
CMatRenderContextPtr pRenderContext( materials );
//pRenderContext->PushRenderTargetAndViewport();
ITexture *pSrc = materials->FindTexture( "_rt_FullFrameFB", TEXTURE_GROUP_RENDER_TARGET );
int nSrcWidth = pSrc->GetActualWidth();
int nSrcHeight = pSrc->GetActualHeight();
int dest_width, dest_height, nDummy;
pRenderContext->GetViewport( nDummy, nDummy, dest_width, dest_height );
if ( g_pMaterialSystemHardwareConfig->GetHDRType() != HDR_TYPE_FLOAT )
{
UpdateScreenEffectTexture( 0, x, y, w, h, true ); // Do we need to check if we already did this?
}
// Get material pointer
IMaterial *pMatMotionBlur = materials->FindMaterial( "dev/motion_blur", TEXTURE_GROUP_OTHER, true );
//SetRenderTargetAndViewPort( dest_rt0 );
//pRenderContext->PopRenderTargetAndViewport();
if ( pMatMotionBlur != NULL )
{
pRenderContext->DrawScreenSpaceRectangle(
pMatMotionBlur,
0, 0, dest_width, dest_height,
0, 0, nSrcWidth-1, nSrcHeight-1,
nSrcWidth, nSrcHeight, GetClientWorldEntity()->GetClientRenderable() );
if ( g_bDumpRenderTargets )
{
DumpTGAofRenderTarget( dest_width, dest_height, "MotionBlur" );
}
}
}
}