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materialsystem/stdshaders/portal_refract_vs11.fxc

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+//========= Copyright © 1996-2006, Valve Corporation, All rights reserved. ============//
+
+// STATIC: "STAGE" "0..2"
+
+// Includes
+#include "common_vs_fxc.h"
+
+// Globals
+//const float g_flTime : register( SHADER_SPECIFIC_CONST_0 );
+const float4 cBaseTexCoordTransform[2]	:  register( SHADER_SPECIFIC_CONST_1 );
+
+const float2 g_vConst3 : register( SHADER_SPECIFIC_CONST_3 );
+#define g_flPortalOpenAmount g_vConst3.x
+#define g_flPortalStaticAmount g_vConst3.y
+
+// Structs
+struct VS_INPUT
+{
+	float4 vPos					: POSITION;		// Position
+	float4 vTexCoord0			: TEXCOORD0;	// Base texture coordinates
+};
+
+struct VS_OUTPUT
+{
+	float4 vProjPosition		: POSITION;  // Projection-space position
+	float2 vUv0					: TEXCOORD0;
+	float2 vUv1					: TEXCOORD1;
+
+	#ifndef _X360
+		float  fog				: FOG;
+	#endif
+};
+
+// Main
+VS_OUTPUT main( const VS_INPUT i )
+{
+	float kFlPortalOuterBorder = 0.075f; // Must match PS!
+
+	VS_OUTPUT o;
+
+	// Transform the position
+	o.vProjPosition.xyzw = mul( i.vPos, cModelViewProj );
+
+	// Portal open time
+	float flPortalOpenAmount = saturate( g_flPortalOpenAmount + 0.001f ); // 0.001f to avoid divide by zero
+
+	// Texture coordinates
+	float2 vBaseUv;
+	vBaseUv.x = dot( i.vTexCoord0.xy, cBaseTexCoordTransform[0] );
+	vBaseUv.y = dot( i.vTexCoord0.xy, cBaseTexCoordTransform[1] );
+	o.vUv0.xy = ( ( vBaseUv.xy - 0.5f ) / ( flPortalOpenAmount * flPortalOpenAmount ) ) + 0.5f;
+	o.vUv1.xy = o.vUv0.xy;
+
+	// Fog
+	#ifndef _X360
+	{
+		float3 vWorldPos = mul( i.vPos, cModel[0] );
+		o.fog = CalcFog( vWorldPos.xyz, o.vProjPosition, FOGTYPE_RANGE );
+	}
+	#endif
+
+	return o;
+}