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materialsystem/stdshaders/weapon_sheen_pass_ps2x.fxc

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+//========= Copyright © 1996-2006, Valve Corporation, All rights reserved. ============//
+
+// STATIC: "CONVERT_TO_SRGB" "0..1"	[ps20b][= g_pHardwareConfig->NeedsShaderSRGBConversion()] [PC]
+// STATIC: "CONVERT_TO_SRGB" "0..1"	[ps30][= g_pHardwareConfig->NeedsShaderSRGBConversion()] [PC]
+// STATIC: "CONVERT_TO_SRGB" "0..0"	[= 0] [XBOX]
+// STATIC: "BUMPMAP" "0..1"
+
+// Includes =======================================================================================
+#include "common_vertexlitgeneric_dx9.h"
+
+// Texture Samplers ===============================================================================
+sampler g_tRefractionSampler		: register( s0 );
+#if BUMPMAP
+	sampler g_tBumpSampler			: register( s1 );
+#endif
+
+sampler EnvmapSampler			: register( s2 );
+sampler EnvmapMaskSampler		: register( s3 );
+
+// Shaders Constants and Globals ==================================================================
+const float4 g_mViewProj0			: register( c0 );	// 1st row of matrix
+const float4 g_mViewProj1			: register( c1 );	// 2nd row of matrix
+
+const float4 g_vCameraPosition		: register( c5 );
+const float4 g_vPackedConst6		: register( c6 );
+const float4 g_vPackedConst7		: register( c7 );
+const float4 g_cCloakColorTint		: register( c8 );
+
+#define g_flSheenMapMaskScaleX   g_vPackedConst6.x // Default = 1.0f
+#define g_flSheenMapMaskScaleY   g_vPackedConst6.y // Default = 1.0f
+#define g_flSheenMapMaskOffsetX  g_vPackedConst6.z // Default = 0.0f
+#define g_flSheenMapMaskOffsetY  g_vPackedConst6.w // Default = 0.0f
+
+#define g_flSheenDirection		g_vPackedConst7.x // 0,1,2 -> XYZ
+#define g_flEffectIndex			g_vPackedConst7.y // W
+
+// 8 2D Poisson offsets (designed to use .xy and .wz swizzles (not .zw)
+static const float4 g_vPoissonOffset[4] = {	float4 (-0.0876f,  0.9703f,  0.5651f,  0.4802f ),
+											float4 ( 0.1851f,  0.1580f, -0.0617f, -0.2616f ),
+											float4 (-0.5477f, -0.6603f,  0.0711f, -0.5325f ),
+											float4 (-0.0751f, -0.8954f,  0.4054f,  0.6384f ) };
+
+// Interpolated values ============================================================================
+struct PS_INPUT
+{
+	float3 vWorldNormal			: TEXCOORD0; // World-space normal
+	float3 vProjPosForRefract	: TEXCOORD1;
+	float3 vWorldViewVector		: TEXCOORD2;
+	float3x3 mTangentSpaceTranspose : TEXCOORD3;
+	//	     second row				: TEXCOORD4;
+	//	     third row				: TEXCOORD5;
+	float2 vTexCoord0				: TEXCOORD6;
+
+	float4 vModelSpacePos				: TEXCOORD7;
+};
+
+// Main ===========================================================================================
+float4 main( PS_INPUT i ) : COLOR
+{
+	float3 vWorldNormal = normalize( i.vWorldNormal.xyz );
+
+	#if BUMPMAP
+		float4 vBumpTexel = tex2D( g_tBumpSampler, i.vTexCoord0.xy );
+		float3 vTangentNormal = ( 2.0f * vBumpTexel ) - 1.0f;
+		vWorldNormal.xyz = mul( i.mTangentSpaceTranspose, vTangentNormal.xyz );
+	#endif
+
+	float4 result;
+
+	// Staging test for weapon patterns
+	if ( g_flEffectIndex == 2 )
+	{
+		float3 ppos = i.vModelSpacePos;
+		float2 temp = 0;
+
+		// 'Scaling' of texture to get it to map to the weapons
+		// No Skewing, just move left to right
+		if ( g_flSheenDirection == 0 )
+		{
+			temp.x = ppos.z;
+			temp.y = ppos.y;
+		}
+		else if ( g_flSheenDirection == 1 )
+		{
+			temp.x = ppos.z;
+			temp.y = ppos.x;
+		}
+		else
+		{
+			temp.x = ppos.y;
+			temp.y = ppos.x;
+		}
+
+		temp.x -= ( g_flSheenMapMaskOffsetX );		// offset
+		temp.y -= ( g_flSheenMapMaskOffsetY );		// offset
+
+		temp.x /= g_flSheenMapMaskScaleX;	// scale
+		temp.y /= g_flSheenMapMaskScaleY;
+
+		temp.y = 1.0 - temp.y;
+
+		// Sample Texture
+		// Sample Mask
+		//float4 patternTexel = tex2D( EnvmapSampler, temp );
+		float4 patternTexel = tex2D( EnvmapSampler, i.vTexCoord0.xy );
+		float4 maskTexel = tex2D( EnvmapMaskSampler, i.vTexCoord0.xy );
+
+		//result.rgba = float4( patternTexel.xyz * 1.0, maskTexel.x * 1.0);		// 0.3 is a hack to preserve rimlight
+		//result.rgba = float4( patternTexel.xyz, 1.0);		// 0.3 is a hack to preserve rimlight
+		result.rgba = float4( 0.0,0.0,0.0,0.0);		// 0.3 is a hack to preserve rimlight
+	}
+	else
+	{
+		// generate a hard reflection in to the cube map
+		float3 vEyeDir = -normalize(i.vWorldViewVector.xyz);
+		float3 worldSpaceNormal, tangentSpaceNormal;
+	
+		tangentSpaceNormal = float3(0, 0, 1);
+		worldSpaceNormal = normalize( mul( i.mTangentSpaceTranspose, tangentSpaceNormal ) );
+	
+		float3 vReflect = 2 * worldSpaceNormal * dot(worldSpaceNormal, vEyeDir) - vEyeDir;
+
+		float3 envMapColor = float3( 0.0f, 0.0f, 0.0f );
+		envMapColor = ENV_MAP_SCALE * texCUBE( EnvmapSampler, vReflect ) * g_cCloakColorTint.xyz;
+		envMapColor *= 10.0f;
+
+		// Sample the Mask
+		float4 envmapMaskTexel;
+		float2 temp = 0;
+		float3 ppos = i.vModelSpacePos;
+
+		//
+		// skew the sampling based on sheen direction
+		//if ( g_flSheenDirection == 0 )
+		//{
+		//	temp.x = ppos.z - ppos.y;
+		//	temp.y = (ppos.x + ppos.y);
+		//}
+		//else if ( g_flSheenDirection == 1 )
+		//{
+		//	temp.x = ppos.x - ppos.z;
+		//	temp.y = (ppos.y + ppos.z);
+		//}
+		//else
+		//{
+		//	temp.x = ppos.y - ppos.x;
+		//	temp.y = (ppos.z + ppos.x);
+		//}
+
+		// No Skewing, just move left to right
+		if ( g_flSheenDirection == 0 )
+		{
+			temp.x = ppos.z;
+			temp.y = ppos.y;
+		}
+		else if ( g_flSheenDirection == 1 )
+		{
+			temp.x = ppos.z;
+			temp.y = ppos.x;
+		}
+		else
+		{
+			temp.x = ppos.y;
+			temp.y = ppos.x;
+		}
+
+		temp.x -= ( g_flSheenMapMaskOffsetX );		// offset
+		temp.y -= ( g_flSheenMapMaskOffsetY );		// offset
+
+		temp.x /= g_flSheenMapMaskScaleX;	// scale
+		temp.y /= g_flSheenMapMaskScaleY;
+
+		temp.y = 1.0 - temp.y;
+
+		envmapMaskTexel = tex2D( EnvmapMaskSampler, temp );
+	
+		// Build result, only have alpha if there was value in the mask.
+		// High alpha (white) will override the underlying texture while low to none will show model underneath
+		//float4 result;
+		//result.rgba = float4( envMapColor, envmapMaskTexel.x * g_cCloakColorTint.w );
+
+		if ( g_flEffectIndex == 1 )
+		{
+			//float alpha = max( max( envmapMaskTexel.x, envmapMaskTexel.y), envmapMaskTexel.z );
+			//result.rgba = float4( envMapColor.xyz * envmapMaskTexel.xyz, alpha );
+		
+			float alpha = max( max( envMapColor.x, envMapColor.y), envMapColor.z );
+			result.rgba = float4( envMapColor.xyz * envmapMaskTexel.xyz, alpha * envmapMaskTexel.x );
+			result.rgba = result.rgba * 1.8f;
+		}
+		else
+		{
+			float alpha = max( max( envMapColor.x, envMapColor.y), envMapColor.z );
+			result.rgba = float4( envMapColor.xyz * envmapMaskTexel.xyz, alpha * envmapMaskTexel.x );
+		}
+	}
+
+	return FinalOutput( result, 0, PIXEL_FOG_TYPE_NONE, TONEMAP_SCALE_NONE );
+}