1HEADmaster

1 files changed, 205 insertions, 0 deletions

diff --git a/materialsystem/stdshaders/portal_dx60.cpp b/materialsystem/stdshaders/portal_dx60.cpp
new file mode 100644
index 0000000..489db66
--- /dev/null
+++ b/materialsystem/stdshaders/portal_dx60.cpp
@@ -0,0 +1,205 @@
+//========= 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
+
+