You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
206 lines
6.1 KiB
206 lines
6.1 KiB
![]()
4 years ago
|
//========= Copyright Valve Corporation, All rights reserved. ============//
|
||
|
//
|
||
|
// Purpose:
|
||
|
//
|
||
|
// $NoKeywords: $
|
||
|
//=============================================================================//
|
||
|
|
||
|
#include "BaseVSShader.h"
|
||
|
#include "convar.h"
|
||
|
#include "d3dx.h"
|
||
|
|
||
|
DEFINE_FALLBACK_SHADER( Portal, Portal_DX60 )
|
||
|
|
||
|
BEGIN_VS_SHADER( Portal_DX60,
|
||
|
"Help for Portal_DX60 shader" )
|
||
|
|
||
|
BEGIN_SHADER_PARAMS
|
||
|
SHADER_PARAM_OVERRIDE( COLOR, SHADER_PARAM_TYPE_COLOR, "{255 255 255}", "unused", SHADER_PARAM_NOT_EDITABLE )
|
||
|
SHADER_PARAM_OVERRIDE( ALPHA, SHADER_PARAM_TYPE_FLOAT, "1.0", "unused", SHADER_PARAM_NOT_EDITABLE )
|
||
|
SHADER_PARAM( STATICAMOUNT, SHADER_PARAM_TYPE_FLOAT, "0.0", "Amount of the static blend texture to blend into the base texture" )
|
||
|
SHADER_PARAM( STATICBLENDTEXTURE, SHADER_PARAM_TYPE_TEXTURE, "", "When adding static, this is the texture that gets blended in" )
|
||
|
SHADER_PARAM( STATICBLENDTEXTUREFRAME, SHADER_PARAM_TYPE_INTEGER, "0", "" )
|
||
|
SHADER_PARAM( ALPHAMASKTEXTURE, SHADER_PARAM_TYPE_TEXTURE, "", "An alpha mask for odd shaped portals" )
|
||
|
SHADER_PARAM( ALPHAMASKTEXTUREFRAME, SHADER_PARAM_TYPE_INTEGER, "0", "" )
|
||
|
SHADER_PARAM( RENDERFIXZ, SHADER_PARAM_TYPE_INTEGER, "0", "Special depth handling, intended for rendering bug workarounds for extremely close polygons" )
|
||
|
END_SHADER_PARAMS
|
||
|
|
||
|
SHADER_INIT_PARAMS()
|
||
|
{
|
||
|
SET_FLAGS( MATERIAL_VAR_TRANSLUCENT );
|
||
|
}
|
||
|
|
||
|
SHADER_FALLBACK
|
||
|
{
|
||
|
return 0; //it doesn't get any simpler than this
|
||
|
}
|
||
|
|
||
|
SHADER_INIT
|
||
|
{
|
||
|
if( params[STATICBLENDTEXTURE]->IsDefined() )
|
||
|
LoadTexture( STATICBLENDTEXTURE );
|
||
|
if( params[ALPHAMASKTEXTURE]->IsDefined() )
|
||
|
LoadTexture( ALPHAMASKTEXTURE );
|
||
|
|
||
|
if( !params[STATICAMOUNT]->IsDefined() )
|
||
|
params[STATICAMOUNT]->SetFloatValue( 0.0f );
|
||
|
|
||
|
if( !params[STATICAMOUNT]->IsDefined() )
|
||
|
params[STATICAMOUNT]->SetFloatValue( 0.0f );
|
||
|
|
||
|
if( !params[STATICBLENDTEXTURE]->IsDefined() )
|
||
|
params[STATICBLENDTEXTURE]->SetIntValue( 0 );
|
||
|
if( !params[STATICBLENDTEXTUREFRAME]->IsDefined() )
|
||
|
params[STATICBLENDTEXTUREFRAME]->SetIntValue( 0 );
|
||
|
|
||
|
if( !params[ALPHAMASKTEXTURE]->IsDefined() )
|
||
|
params[ALPHAMASKTEXTURE]->SetIntValue( 0 );
|
||
|
if( !params[ALPHAMASKTEXTUREFRAME]->IsDefined() )
|
||
|
params[ALPHAMASKTEXTUREFRAME]->SetIntValue( 0 );
|
||
|
|
||
|
if( !params[RENDERFIXZ]->IsDefined() )
|
||
|
params[RENDERFIXZ]->SetIntValue( 0 );
|
||
|
}
|
||
|
|
||
|
SHADER_DRAW
|
||
|
{
|
||
|
bool bAlphaMaskTexture = params[ALPHAMASKTEXTURE]->IsTexture();
|
||
|
|
||
|
SHADOW_STATE
|
||
|
{
|
||
|
SetInitialShadowState();
|
||
|
|
||
|
bool bIsModel = IS_FLAG_SET( MATERIAL_VAR_MODEL );
|
||
|
|
||
|
FogToFogColor();
|
||
|
|
||
|
if( params[RENDERFIXZ]->GetIntValue() == 0 )
|
||
|
{
|
||
|
//pShaderShadow->EnablePolyOffset( SHADER_POLYOFFSET_DECAL ); //a portal is effectively a decal on top of a wall
|
||
|
pShaderShadow->DepthFunc( SHADER_DEPTHFUNC_NEAREROREQUAL );
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
pShaderShadow->EnablePolyOffset( SHADER_POLYOFFSET_DISABLE );
|
||
|
pShaderShadow->DepthFunc( SHADER_DEPTHFUNC_ALWAYS );
|
||
|
pShaderShadow->EnableDepthTest( false );
|
||
|
pShaderShadow->EnableDepthWrites( false );
|
||
|
}
|
||
|
|
||
|
pShaderShadow->EnableDepthWrites( true );
|
||
|
|
||
|
if( bAlphaMaskTexture )
|
||
|
{
|
||
|
pShaderShadow->EnableAlphaTest( true );
|
||
|
if( bIsModel )
|
||
|
pShaderShadow->DrawFlags( SHADER_DRAW_POSITION | SHADER_DRAW_TEXCOORD0 | SHADER_DRAW_TEXCOORD1 );
|
||
|
else
|
||
|
pShaderShadow->DrawFlags( SHADER_DRAW_POSITION | SHADER_DRAW_LIGHTMAP_TEXCOORD0 | SHADER_DRAW_LIGHTMAP_TEXCOORD1 );
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if( bIsModel )
|
||
|
pShaderShadow->DrawFlags( SHADER_DRAW_POSITION | SHADER_DRAW_TEXCOORD0 );
|
||
|
else
|
||
|
pShaderShadow->DrawFlags( SHADER_DRAW_POSITION | SHADER_DRAW_LIGHTMAP_TEXCOORD0 );
|
||
|
}
|
||
|
}
|
||
|
DYNAMIC_STATE
|
||
|
{
|
||
|
pShaderAPI->SetDefaultState();
|
||
|
}
|
||
|
|
||
|
if( bAlphaMaskTexture )
|
||
|
StaticPass_WithAlphaMask( pShaderShadow, pShaderAPI, params ); //portal static texture blending
|
||
|
else
|
||
|
StaticPass_NoAlphaMask( pShaderShadow, pShaderAPI, params ); //portal static texture blending
|
||
|
}
|
||
|
|
||
|
|
||
|
void StaticPass_NoAlphaMask( IShaderShadow *pShaderShadow, IShaderDynamicAPI *pShaderAPI, IMaterialVar **params )
|
||
|
{
|
||
|
bool bStaticBlendTexture = params[STATICBLENDTEXTURE]->IsTexture();
|
||
|
|
||
|
SHADOW_STATE
|
||
|
{
|
||
|
if( bStaticBlendTexture )
|
||
|
pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
|
||
|
}
|
||
|
DYNAMIC_STATE
|
||
|
{
|
||
|
if( bStaticBlendTexture )
|
||
|
BindTexture( SHADER_SAMPLER0, STATICBLENDTEXTURE, STATICBLENDTEXTUREFRAME );
|
||
|
else
|
||
|
pShaderAPI->Color4f( 0.5f, 0.5f, 0.5f, 0.0f );
|
||
|
}
|
||
|
Draw();
|
||
|
}
|
||
|
|
||
|
|
||
|
void StaticPass_WithAlphaMask( IShaderShadow *pShaderShadow, IShaderDynamicAPI *pShaderAPI, IMaterialVar **params )
|
||
|
{
|
||
|
bool bStaticBlendTexture = params[STATICBLENDTEXTURE]->IsTexture();
|
||
|
|
||
|
SHADOW_STATE
|
||
|
{
|
||
|
pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
|
||
|
pShaderShadow->EnableTexture( SHADER_SAMPLER1, true );
|
||
|
pShaderShadow->EnableBlending( true );
|
||
|
pShaderShadow->BlendFunc( SHADER_BLEND_SRC_ALPHA, SHADER_BLEND_ONE_MINUS_SRC_ALPHA );
|
||
|
|
||
|
pShaderShadow->EnableCustomPixelPipe( true );
|
||
|
pShaderShadow->CustomTextureStages( 2 );
|
||
|
|
||
|
//portal static
|
||
|
if( bStaticBlendTexture )
|
||
|
{
|
||
|
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
|
||
|
SHADER_TEXCHANNEL_COLOR,
|
||
|
SHADER_TEXOP_SELECTARG1,
|
||
|
SHADER_TEXARG_TEXTURE, SHADER_TEXARG_TEXTURE );
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
|
||
|
SHADER_TEXCHANNEL_COLOR,
|
||
|
SHADER_TEXOP_SELECTARG1,
|
||
|
SHADER_TEXARG_CONSTANTCOLOR, SHADER_TEXARG_CONSTANTCOLOR );
|
||
|
}
|
||
|
|
||
|
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0,
|
||
|
SHADER_TEXCHANNEL_ALPHA,
|
||
|
SHADER_TEXOP_SELECTARG1,
|
||
|
SHADER_TEXARG_ZERO, SHADER_TEXARG_ZERO );
|
||
|
|
||
|
|
||
|
//alpha mask
|
||
|
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
|
||
|
SHADER_TEXCHANNEL_COLOR,
|
||
|
SHADER_TEXOP_SELECTARG1,
|
||
|
SHADER_TEXARG_PREVIOUSSTAGE, SHADER_TEXARG_PREVIOUSSTAGE );
|
||
|
|
||
|
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE1,
|
||
|
SHADER_TEXCHANNEL_ALPHA,
|
||
|
SHADER_TEXOP_SELECTARG1,
|
||
|
SHADER_TEXARG_TEXTUREALPHA, SHADER_TEXARG_TEXTUREALPHA );
|
||
|
}
|
||
|
DYNAMIC_STATE
|
||
|
{
|
||
|
if( bStaticBlendTexture )
|
||
|
BindTexture( SHADER_SAMPLER0, STATICBLENDTEXTURE, STATICBLENDTEXTUREFRAME );
|
||
|
else
|
||
|
pShaderAPI->Color4f( 0.5f, 0.5f, 0.5f, 0.0f );
|
||
|
|
||
|
BindTexture( SHADER_SAMPLER1, ALPHAMASKTEXTURE, ALPHAMASKTEXTUREFRAME );
|
||
|
}
|
||
|
Draw();
|
||
|
SHADOW_STATE
|
||
|
{
|
||
|
pShaderShadow->EnableCustomPixelPipe( false );
|
||
|
}
|
||
|
}
|
||
|
|
||
|
END_SHADER
|
||
|
|
||
|
|