7309a5f13f
This should include the latest version of every shader that was in the 2007 SDK. It also includes a smattering of debug shaders, both VR distortion shaders, and other assorted shaders that will hopefully be useful. None of these new files are included in the game shader DLL project. If you need to modify one of these shaders for use in your mod you will need to rename it so that you don't collide with the version of that shader that lives in stdshader_dx9.dll.
372 lines
16 KiB
Plaintext
372 lines
16 KiB
Plaintext
//======= Copyright © 1996-2007, Valve Corporation, All rights reserved. ======
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// STATIC: "CONVERT_TO_SRGB" "0..0"
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// STATIC: "CUBEMAP" "0..1"
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// STATIC: "SELFILLUM" "0..1"
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// STATIC: "SELFILLUMFRESNEL" "0..1"
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// STATIC: "FLASHLIGHT" "0..1"
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// STATIC: "LIGHTWARPTEXTURE" "0..1"
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// STATIC: "PHONGWARPTEXTURE" "0..1"
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// STATIC: "WRINKLEMAP" "0..1"
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// STATIC: "DETAIL_BLEND_MODE" "0..6"
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// STATIC: "DETAILTEXTURE" "0..1"
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// STATIC: "RIMLIGHT" "0..1"
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// STATIC: "FLASHLIGHTDEPTHFILTERMODE" "0..2" [ps20b] [PC]
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// STATIC: "FLASHLIGHTDEPTHFILTERMODE" "0..2" [ps30] [PC]
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// STATIC: "FLASHLIGHTDEPTHFILTERMODE" "0..0" [ps20b] [XBOX]
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// STATIC: "FASTPATH_NOBUMP" "0..1"
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// STATIC: "BLENDTINTBYBASEALPHA" "0..1"
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// DYNAMIC: "WRITEWATERFOGTODESTALPHA" "0..1"
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// DYNAMIC: "PIXELFOGTYPE" "0..1"
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// DYNAMIC: "NUM_LIGHTS" "0..4"
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// DYNAMIC: "WRITE_DEPTH_TO_DESTALPHA" "0..1" [ps20b] [PC]
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// DYNAMIC: "WRITE_DEPTH_TO_DESTALPHA" "0..0" [ps20b] [XBOX]
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// DYNAMIC: "WRITE_DEPTH_TO_DESTALPHA" "0..1" [ps30]
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// DYNAMIC: "FLASHLIGHTSHADOWS" "0..1" [ps20b]
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// DYNAMIC: "FLASHLIGHTSHADOWS" "0..1" [ps30]
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// SKIP: ($PIXELFOGTYPE == 0) && ($WRITEWATERFOGTODESTALPHA != 0)
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// blend mode doesn't matter if we only have one texture
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// SKIP: (! $DETAILTEXTURE) && ( $DETAIL_BLEND_MODE != 0 )
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// We don't care about flashlight depth unless the flashlight is on
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// SKIP: ( $FLASHLIGHT == 0 ) && ( $FLASHLIGHTSHADOWS == 1 )
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// Flashlight shadow filter mode is irrelevant if there is no flashlight
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// SKIP: ( $FLASHLIGHT == 0 ) && ( $FLASHLIGHTDEPTHFILTERMODE != 0 ) [ps20b]
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// SKIP: ( $FLASHLIGHT == 0 ) && ( $FLASHLIGHTDEPTHFILTERMODE != 0 ) [ps30]
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// Only need self illum fresnel when self illum enabled
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// SKIP: ( $SELFILLUM == 0 ) && ( $SELFILLUMFRESNEL == 1 )
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// SKIP: ( $FLASHLIGHT == 1 ) && ( $SELFILLUMFRESNEL == 1 )
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// SKIP: ( $FLASHLIGHT == 1 ) && ( $SELFILLUM == 1 )
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// BlendTintByBaseAlpha and self illum and are opposing meanings for alpha channel
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// SKIP: ( $BLENDTINTBYBASEALPHA ) && ( $SELFILLUM )
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// fastpath means:
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// no bumpmap
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// basealphaenvmapmask (not inverted)
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// no spec expmap
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// no spectint
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// no specwarp
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// no rimlight
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// no selfillum
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// no detail
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// no BlendTintByBaseAlpha
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// SKIP: $FASTPATH_NOBUMP && ( $RIMLIGHT || $DETAILTEXTURE || $PHONGWARPTEXTURE || $SELFILLUM || $BLENDTINTBYBASEALPHA )
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#include "common_flashlight_fxc.h"
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#include "shader_constant_register_map.h"
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const float4 g_SelfIllumTint_and_DetailBlendFactor : register( PSREG_SELFILLUMTINT );
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#if ( SELFILLUMFRESNEL == 1 )
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const float4 g_SelfIllumScaleBiasExpBrightness : register( PSREG_SELFILLUM_SCALE_BIAS_EXP );
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#endif
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const float4 g_DiffuseModulation : register( PSREG_DIFFUSE_MODULATION );
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const float4 g_EnvmapTint_ShadowTweaks : register( PSREG_ENVMAP_TINT__SHADOW_TWEAKS ); // w controls spec mask
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const float3 cAmbientCube[6] : register( PSREG_AMBIENT_CUBE );
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const float4 g_EnvMapFresnel : register( PSREG_ENVMAP_FRESNEL__SELFILLUMMASK ); // x is envmap fresnel ... w is selfillummask control
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const float4 g_EyePos_SpecExponent : register( PSREG_EYEPOS_SPEC_EXPONENT );
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const float4 g_FogParams : register( PSREG_FOG_PARAMS );
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const float4 g_FlashlightAttenuationFactors_RimMask : register( PSREG_FLASHLIGHT_ATTENUATION ); // On non-flashlight pass, x has rim mask control
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const float4 g_FlashlightPos_RimBoost : register( PSREG_FLASHLIGHT_POSITION_RIM_BOOST );
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const float4x4 g_FlashlightWorldToTexture : register( PSREG_FLASHLIGHT_TO_WORLD_TEXTURE );
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const float4 g_FresnelSpecParams : register( PSREG_FRESNEL_SPEC_PARAMS ); // xyz are fresnel, w is specular boost
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const float4 g_SpecularRimParams : register( PSREG_SPEC_RIM_PARAMS ); // xyz are specular tint color, w is rim power
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PixelShaderLightInfo cLightInfo[3] : register( PSREG_LIGHT_INFO_ARRAY ); // 2 registers each - 6 registers total (4th light spread across w's)
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// TODO: give this a better name. For now, I don't want to touch shader_constant_register_map.h since I don't want to trigger a recompile of everything...
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const float4 g_ShaderControls : register( PSREG_CONSTANT_27 ); // x is basemap alpgha phong mask, y is 1 - blendtintbybasealpha, z is tint overlay amount, w controls "INVERTPHONGMASK"
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#define g_FlashlightPos g_FlashlightPos_RimBoost.xyz
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#define g_fRimBoost g_FlashlightPos_RimBoost.w
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#define g_FresnelRanges g_FresnelSpecParams.xyz
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#define g_SpecularBoost g_FresnelSpecParams.w
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#define g_SpecularTint g_SpecularRimParams.xyz
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#define g_RimExponent g_SpecularRimParams.w
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#define g_FlashlightAttenuationFactors g_FlashlightAttenuationFactors_RimMask
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#define g_RimMaskControl g_FlashlightAttenuationFactors_RimMask.x
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#define g_SelfIllumMaskControl g_EnvMapFresnel.w
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#define g_fBaseMapAlphaPhongMask g_ShaderControls.x
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#define g_fTintReplacementControl g_ShaderControls.z
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#define g_fInvertPhongMask g_ShaderControls.w
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sampler BaseTextureSampler : register( s0 ); // Base map, selfillum in alpha
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sampler SpecularWarpSampler : register( s1 ); // Specular warp sampler (for iridescence etc)
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sampler DiffuseWarpSampler : register( s2 ); // Lighting warp sampler (1D texture for diffuse lighting modification)
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sampler NormalMapSampler : register( s3 ); // Normal map, specular mask in alpha
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sampler ShadowDepthSampler : register( s4 ); // Flashlight shadow depth map sampler
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sampler NormalizeRandRotSampler : register( s5 ); // Normalization / RandomRotation samplers
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sampler FlashlightSampler : register( s6 ); // Flashlight cookie
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sampler SpecExponentSampler : register( s7 ); // Specular exponent map
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sampler EnvmapSampler : register( s8 ); // Cubic environment map
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#if WRINKLEMAP
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sampler WrinkleSampler : register( s9 ); // Compression base
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sampler StretchSampler : register( s10 ); // Expansion base
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sampler NormalWrinkleSampler : register( s11 ); // Compression base
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sampler NormalStretchSampler : register( s12 ); // Expansion base
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#endif
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#if DETAILTEXTURE
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sampler DetailSampler : register( s13 ); // detail texture
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#endif
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sampler SelfIllumMaskSampler : register( s14 ); // selfillummask
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struct PS_INPUT
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{
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float4 baseTexCoordDetailTexCoord : TEXCOORD0; // xy=base zw=detail
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float3 lightAtten : TEXCOORD1; // Scalar light attenuation factors for FOUR lights
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float3 worldVertToEyeVectorXYZ_tangentSpaceVertToEyeVectorZ : TEXCOORD2;
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float3x3 tangentSpaceTranspose : TEXCOORD3;
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// second row : TEXCOORD4;
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// third row : TEXCOORD5;
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float4 worldPos_atten3 : TEXCOORD6;
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float4 projPos_fWrinkleWeight : TEXCOORD7;
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};
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float4 main( PS_INPUT i ) : COLOR
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{
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bool bWrinkleMap = WRINKLEMAP ? true : false;
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bool bDoDiffuseWarp = LIGHTWARPTEXTURE ? true : false;
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bool bDoSpecularWarp = PHONGWARPTEXTURE ? true : false;
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bool bDoAmbientOcclusion = false;
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bool bFlashlight = (FLASHLIGHT!=0) ? true : false;
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bool bSelfIllum = SELFILLUM ? true : false;
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bool bDoRimLighting = RIMLIGHT ? true : false;
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bool bCubemap = CUBEMAP ? true : false;
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bool bBlendTintByBaseAlpha = BLENDTINTBYBASEALPHA ? true : false;
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int nNumLights = NUM_LIGHTS;
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// Unpacking for convenience
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float fWrinkleWeight = i.projPos_fWrinkleWeight.w;
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float3 vProjPos = i.projPos_fWrinkleWeight.xyz;
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float3 vWorldPos = i.worldPos_atten3.xyz;
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float atten3 = i.worldPos_atten3.w;
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float4 vLightAtten = float4( i.lightAtten, atten3 );
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#if WRINKLEMAP
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float flWrinkleAmount = saturate( -fWrinkleWeight ); // One of these two is zero
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float flStretchAmount = saturate( fWrinkleWeight ); // while the other is in the 0..1 range
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float flTextureAmount = 1.0f - flWrinkleAmount - flStretchAmount; // These should sum to one
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#endif
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float4 baseColor = tex2D( BaseTextureSampler, i.baseTexCoordDetailTexCoord.xy );
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#if WRINKLEMAP
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float4 wrinkleColor = tex2D( WrinkleSampler, i.baseTexCoordDetailTexCoord.xy );
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float4 stretchColor = tex2D( StretchSampler, i.baseTexCoordDetailTexCoord.xy );
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// Apply wrinkle blend to only RGB. Alpha comes from the base texture
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baseColor.rgb = flTextureAmount * baseColor + flWrinkleAmount * wrinkleColor + flStretchAmount * stretchColor;
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#endif
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#if DETAILTEXTURE
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float4 detailColor = tex2D( DetailSampler, i.baseTexCoordDetailTexCoord.zw );
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baseColor = TextureCombine( baseColor, detailColor, DETAIL_BLEND_MODE, g_SelfIllumTint_and_DetailBlendFactor.w );
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#endif
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float fogFactor = CalcPixelFogFactor( PIXELFOGTYPE, g_FogParams, g_EyePos_SpecExponent.z, vWorldPos.z, vProjPos.z );
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float3 vEyeDir = normalize(i.worldVertToEyeVectorXYZ_tangentSpaceVertToEyeVectorZ.xyz);
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float3 vRimAmbientCubeColor = PixelShaderAmbientLight(vEyeDir, cAmbientCube);
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float3 worldSpaceNormal, tangentSpaceNormal;
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float fSpecMask = 1.0f;
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float4 normalTexel = tex2D( NormalMapSampler, i.baseTexCoordDetailTexCoord.xy );
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#if WRINKLEMAP
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float4 wrinkleNormal = tex2D( NormalWrinkleSampler, i.baseTexCoordDetailTexCoord.xy );
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float4 stretchNormal = tex2D( NormalStretchSampler, i.baseTexCoordDetailTexCoord.xy );
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normalTexel = flTextureAmount * normalTexel + flWrinkleAmount * wrinkleNormal + flStretchAmount * stretchNormal;
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#endif
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#if (FASTPATH_NOBUMP == 0 )
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tangentSpaceNormal = lerp( 2.0f * normalTexel.xyz - 1.0f, float3(0, 0, 1), g_fBaseMapAlphaPhongMask );
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fSpecMask = lerp( normalTexel.a, baseColor.a, g_fBaseMapAlphaPhongMask );
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#else
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tangentSpaceNormal = float3(0, 0, 1);
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fSpecMask = baseColor.a;
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#endif
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// We need a normal if we're doing any lighting
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worldSpaceNormal = normalize( mul( i.tangentSpaceTranspose, tangentSpaceNormal ) );
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float fFresnelRanges = Fresnel( worldSpaceNormal, vEyeDir, g_FresnelRanges );
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float fRimFresnel = Fresnel4( worldSpaceNormal, vEyeDir );
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// Break down reflect so that we can share dot(worldSpaceNormal,vEyeDir) with fresnel terms
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float3 vReflect = 2 * worldSpaceNormal * dot(worldSpaceNormal, vEyeDir) - vEyeDir;
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float3 diffuseLighting = float3( 1.0f, 1.0f, 1.0f );
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float3 envMapColor = float3( 0.0f, 0.0f, 0.0f );
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if( !bFlashlight )
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{
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// Summation of diffuse illumination from all local lights
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diffuseLighting = PixelShaderDoLighting( vWorldPos, worldSpaceNormal,
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float3( 0.0f, 0.0f, 0.0f ), false, true, vLightAtten,
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cAmbientCube, NormalizeRandRotSampler, nNumLights, cLightInfo, true,
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// These parameters aren't passed by generic shaders:
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false, 1.0f,
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bDoDiffuseWarp, DiffuseWarpSampler );
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if( bCubemap )
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{
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// Mask is either normal map alpha or base map alpha
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#if ( SELFILLUMFRESNEL == 1 ) // This is to match the 2.0 version of vertexlitgeneric
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float fEnvMapMask = lerp( baseColor.a, g_fInvertPhongMask, g_EnvmapTint_ShadowTweaks.w );
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#else
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float fEnvMapMask = lerp( baseColor.a, fSpecMask, g_EnvmapTint_ShadowTweaks.w );
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#endif
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envMapColor = (ENV_MAP_SCALE *
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lerp(1, fFresnelRanges, g_EnvMapFresnel.x) *
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lerp(fEnvMapMask, 1-fEnvMapMask, g_fInvertPhongMask)) *
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texCUBE( EnvmapSampler, vReflect ) *
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g_EnvmapTint_ShadowTweaks.xyz;
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}
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}
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float3 specularLighting = float3( 0.0f, 0.0f, 0.0f );
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float3 rimLighting = float3( 0.0f, 0.0f, 0.0f );
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float3 vSpecularTint = 1;
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float fRimMask = 0;
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float fSpecExp = 1;
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#if ( FASTPATH_NOBUMP == 0 )
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float4 vSpecExpMap = tex2D( SpecExponentSampler, i.baseTexCoordDetailTexCoord.xy );
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if ( !bFlashlight )
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{
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fRimMask = lerp( 1.0f, vSpecExpMap.a, g_RimMaskControl ); // Select rim mask
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}
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// If the exponent passed in as a constant is zero, use the value from the map as the exponent
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#if defined( _X360 )
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[flatten]
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#endif
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fSpecExp = (g_EyePos_SpecExponent.w >= 0.0) ? g_EyePos_SpecExponent.w : (1.0f + 149.0f * vSpecExpMap.r);
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// If constant tint is negative, tint with albedo, based upon scalar tint map
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#if defined( _X360 )
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[flatten]
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#endif
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vSpecularTint = lerp( float3(1.0f, 1.0f, 1.0f), baseColor.rgb, vSpecExpMap.g );
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vSpecularTint = (g_SpecularTint.r >= 0.0) ? g_SpecularTint.rgb : vSpecularTint;
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#else
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fSpecExp = max(g_EyePos_SpecExponent.w, 0);
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#endif
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float3 albedo = baseColor.rgb;
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if ( !bFlashlight )
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{
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// Summation of specular from all local lights besides the flashlight
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PixelShaderDoSpecularLighting( vWorldPos, worldSpaceNormal,
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fSpecExp, vEyeDir, vLightAtten,
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nNumLights, cLightInfo, false, 1.0f, bDoSpecularWarp,
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SpecularWarpSampler, fFresnelRanges, bDoRimLighting, g_RimExponent,
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// Outputs
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specularLighting, rimLighting );
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}
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else
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{
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float4 flashlightSpacePosition = mul( float4( vWorldPos, 1.0f ), g_FlashlightWorldToTexture );
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DoSpecularFlashlight( g_FlashlightPos, vWorldPos, flashlightSpacePosition, worldSpaceNormal,
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g_FlashlightAttenuationFactors.xyz, g_FlashlightAttenuationFactors.w,
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FlashlightSampler, ShadowDepthSampler, NormalizeRandRotSampler, FLASHLIGHTDEPTHFILTERMODE, FLASHLIGHTSHADOWS, true, vProjPos.xy / vProjPos.z,
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fSpecExp, vEyeDir, bDoSpecularWarp, SpecularWarpSampler, fFresnelRanges, g_EnvmapTint_ShadowTweaks,
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// These two values are output
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diffuseLighting, specularLighting );
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}
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// If we didn't already apply Fresnel to specular warp, modulate the specular
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if ( !bDoSpecularWarp )
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fSpecMask *= fFresnelRanges;
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// Modulate with spec mask, boost and tint
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specularLighting *= fSpecMask * g_SpecularBoost;
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if (bBlendTintByBaseAlpha)
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{
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float3 tintedColor = albedo * g_DiffuseModulation.rgb;
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tintedColor = lerp(tintedColor, g_DiffuseModulation.rgb, g_fTintReplacementControl);
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albedo = lerp(albedo, tintedColor, baseColor.a);
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}
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else
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{
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albedo = albedo * g_DiffuseModulation.rgb;
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}
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float3 diffuseComponent = albedo * diffuseLighting;
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if ( bSelfIllum && !bFlashlight )
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{
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#if ( SELFILLUMFRESNEL == 1 ) // To free up the constant register...see top of file
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// This will apply a Fresnel term based on the vertex normal (not the per-pixel normal!) to help fake and internal glow look
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float3 vVertexNormal = normalize( float3( i.tangentSpaceTranspose[0].z, i.tangentSpaceTranspose[1].z, i.tangentSpaceTranspose[2].z ) );
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float flSelfIllumFresnel = ( pow( saturate( dot( vVertexNormal.xyz, vEyeDir.xyz ) ), g_SelfIllumScaleBiasExpBrightness.z ) * g_SelfIllumScaleBiasExpBrightness.x ) + g_SelfIllumScaleBiasExpBrightness.y;
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diffuseComponent = lerp( diffuseComponent, g_SelfIllumTint_and_DetailBlendFactor.rgb * albedo * g_SelfIllumScaleBiasExpBrightness.w, baseColor.a * saturate( flSelfIllumFresnel ) );
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#else
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float3 vSelfIllumMask = tex2D( SelfIllumMaskSampler, i.baseTexCoordDetailTexCoord.xy );
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vSelfIllumMask = lerp( baseColor.aaa, vSelfIllumMask, g_SelfIllumMaskControl );
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diffuseComponent = lerp( diffuseComponent, g_SelfIllumTint_and_DetailBlendFactor.rgb * albedo, vSelfIllumMask );
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#endif
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diffuseComponent = max( 0.0f, diffuseComponent );
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}
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#if DETAILTEXTURE
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diffuseComponent = TextureCombinePostLighting( diffuseComponent, detailColor,
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DETAIL_BLEND_MODE, g_SelfIllumTint_and_DetailBlendFactor.w );
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#endif
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if ( bDoRimLighting && !bFlashlight )
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{
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float fRimMultiply = fRimMask * fRimFresnel; // both unit range: [0, 1]
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// Add in rim light modulated with tint, mask and traditional Fresnel (not using Fresnel ranges)
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rimLighting *= fRimMultiply;
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// Fold rim lighting into specular term by using the max so that we don't really add light twice...
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specularLighting = max( specularLighting, rimLighting );
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// Add in view-ray lookup from ambient cube
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specularLighting += (vRimAmbientCubeColor * g_fRimBoost) * saturate(fRimMultiply * worldSpaceNormal.z);
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}
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float3 result = specularLighting*vSpecularTint + envMapColor + diffuseComponent;
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#if WRITEWATERFOGTODESTALPHA && ( PIXELFOGTYPE == PIXEL_FOG_TYPE_HEIGHT )
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float alpha = fogFactor;
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#else
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float alpha = g_DiffuseModulation.a;
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if ( !bSelfIllum && !bBlendTintByBaseAlpha )
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{
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alpha = lerp( baseColor.a * alpha, alpha, g_fBaseMapAlphaPhongMask );
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}
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#endif
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bool bWriteDepthToAlpha = ( WRITE_DEPTH_TO_DESTALPHA != 0 ) && ( WRITEWATERFOGTODESTALPHA == 0 );
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//FIXME: need to take dowaterfog into consideration
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return FinalOutput( float4( result, alpha ), fogFactor, PIXELFOGTYPE, TONEMAP_SCALE_LINEAR, bWriteDepthToAlpha, vProjPos.z );
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}
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