mirror of
https://github.com/nillerusr/source-engine.git
synced 2024-12-23 06:36:54 +00:00
68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $Header: $
|
|
// $NoKeywords: $
|
|
//=============================================================================//
|
|
|
|
#include "shaderlib/cshader.h"
|
|
|
|
// memdbgon must be the last include file in a .cpp file!!!
|
|
#include "tier0/memdbgon.h"
|
|
|
|
DEFINE_FALLBACK_SHADER( FilmDust, FilmDust_DX7 )
|
|
|
|
BEGIN_SHADER( FilmDust_DX7, "Help for FilmDust_DX7" )
|
|
|
|
BEGIN_SHADER_PARAMS
|
|
SHADER_PARAM( DUST_TEXTURE, SHADER_PARAM_TYPE_TEXTURE, "0", "Film grain texture" )
|
|
SHADER_PARAM( CHANNEL_SELECT, SHADER_PARAM_TYPE_VEC4, "", "Select which color channel to use" )
|
|
END_SHADER_PARAMS
|
|
|
|
SHADER_INIT_PARAMS()
|
|
{
|
|
}
|
|
|
|
SHADER_FALLBACK
|
|
{
|
|
// Requires DX9 + above
|
|
if ( g_pHardwareConfig->GetDXSupportLevel() < 70 )
|
|
{
|
|
Assert( 0 );
|
|
return "Wireframe";
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
SHADER_INIT
|
|
{
|
|
LoadTexture( DUST_TEXTURE );
|
|
}
|
|
|
|
SHADER_DRAW
|
|
{
|
|
SHADOW_STATE
|
|
{
|
|
pShaderShadow->EnableConstantColor( true );
|
|
pShaderShadow->EnableBlending( true );
|
|
pShaderShadow->BlendFunc( SHADER_BLEND_ZERO, SHADER_BLEND_ONE_MINUS_SRC_COLOR );
|
|
|
|
pShaderShadow->EnableCustomPixelPipe( true );
|
|
pShaderShadow->CustomTextureStages( 1 );
|
|
pShaderShadow->CustomTextureOperation( SHADER_TEXTURE_STAGE0, SHADER_TEXCHANNEL_COLOR, SHADER_TEXOP_DOTPRODUCT3, SHADER_TEXARG_CONSTANTCOLOR, SHADER_TEXARG_TEXTURE );
|
|
|
|
pShaderShadow->EnableTexture( SHADER_SAMPLER0, true );
|
|
}
|
|
DYNAMIC_STATE
|
|
{
|
|
float color[4];
|
|
params[CHANNEL_SELECT]->GetVecValue( color, 4 );
|
|
s_pShaderAPI->Color4fv( color );
|
|
|
|
BindTexture( SHADER_SAMPLER0, DUST_TEXTURE, -1 );
|
|
}
|
|
Draw();
|
|
}
|
|
END_SHADER
|