Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
#include "BaseVSShader.h"
#include "portal_refract_dx8_helper.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
DEFINE_FALLBACK_SHADER( PortalRefract, PortalRefract_dx8 )
BEGIN_VS_SHADER( PortalRefract_dx8, "PortalRefract_dx8" )
BEGIN_SHADER_PARAMS
SHADER_PARAM( STAGE, SHADER_PARAM_TYPE_INTEGER, "0", "Stage of portal rendering (0, 1, 2)" )
SHADER_PARAM( PORTALOPENAMOUNT, SHADER_PARAM_TYPE_FLOAT, "0.0", "Portal open amount 0.0-1.0" )
SHADER_PARAM( PORTALSTATIC, SHADER_PARAM_TYPE_FLOAT, "0.0", "Portal static amount 0.0-1.0" )
SHADER_PARAM( PORTALMASKTEXTURE, SHADER_PARAM_TYPE_TEXTURE, "", "Mask texture" )
SHADER_PARAM( TEXTURETRANSFORM, SHADER_PARAM_TYPE_MATRIX, "center .5 .5 scale 1 1 rotate 0 translate 0 0", "Texcoord transform" )
SHADER_PARAM( PORTALCOLORTEXTURE, SHADER_PARAM_TYPE_TEXTURE, "", "Color texture" )
SHADER_PARAM( PORTALCOLORSCALE, SHADER_PARAM_TYPE_FLOAT, "0.0", "Portal color scale" )
END_SHADER_PARAMS
void SetupVarsPortalRefract_DX8( PortalRefractVarsDX8_t &info )
{
info.m_nStage = STAGE;
info.m_nPortalOpenAmount = PORTALOPENAMOUNT;
info.m_nPortalStatic = PORTALSTATIC;
info.m_nPortalMaskTexture = PORTALMASKTEXTURE;
info.m_nTextureTransform = TEXTURETRANSFORM;
info.m_nPortalColorTexture = PORTALCOLORTEXTURE;
info.m_nPortalColorScale = PORTALCOLORSCALE;
}
bool NeedsPowerOfTwoFrameBufferTexture( IMaterialVar **params, bool bCheckSpecificToThisFrame ) const
{
return false;
}
SHADER_INIT_PARAMS()
{
PortalRefractVarsDX8_t info;
SetupVarsPortalRefract_DX8( info );
InitParamsPortalRefract_DX8( this, params, pMaterialName, info );
}
SHADER_FALLBACK
{
if ( g_pHardwareConfig->GetDXSupportLevel() < 80 )
{
return "Wireframe";
}
return 0;
}
SHADER_INIT
{
PortalRefractVarsDX8_t info;
SetupVarsPortalRefract_DX8( info );
InitPortalRefract_DX8( this, params, info );
}
SHADER_DRAW
{
// Skip drawing stage 0 in DX8
bool bDraw = true;
if ( params[STAGE]->GetIntValue() == 0 )
{
bDraw = false;
}
// If ( snapshotting ) or ( we need to draw this frame )
if ( ( pShaderShadow != NULL ) || ( bDraw == true ) )
{
PortalRefractVarsDX8_t info;
SetupVarsPortalRefract_DX8( info );
DrawPortalRefract_DX8( this, params, pShaderAPI, pShaderShadow, info );
}
else // We're not snapshotting and we don't need to draw this frame
{
// Skip this pass!
Draw( false );
}
}
END_SHADER