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https://github.com/mapbase-source/source-sdk-2013.git
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330 lines
10 KiB
Plaintext
330 lines
10 KiB
Plaintext
//====== Copyright c 1996-2004, Valve Corporation, All rights reserved. =======
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//
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// Purpose:
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//
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//=============================================================================
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// STATIC: "NORMALMAP" "0..2"
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// STATIC: "NORMALMAP2" "0..1"
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// STATIC: "WORLDVERTEXTRANSITION" "0..1"
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// STATIC: "FANCY_BLENDING" "0..1"
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// STATIC: "SEAMLESS" "0..1"
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// STATIC: "DETAILTEXTURE" "0..1"
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// STATIC: "DETAIL_BLEND_MODE" "0..1"
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// STATIC: "FLASHLIGHTDEPTHFILTERMODE" "0..2" [ps20b] [ps30] [PC]
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// STATIC: "PHONG" "0..1" [ps20b] [ps30]
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// STATIC: "PHONGMASK" "0..3" [ps20b] [ps30]
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// STATIC: "BASETEXTURETRANSFORM2" "0..1"
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// DYNAMIC: "PIXELFOGTYPE" "0..1"
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// DYNAMIC: "FLASHLIGHTSHADOWS" "0..1" [ps20b] [ps30]
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// SKIP: !$WORLDVERTEXTRANSITION && $NORMALMAP2
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// SKIP: !$NORMALMAP && $NORMALMAP2
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// SKIP: !$DETAILTEXTURE && ( $DETAIL_BLEND_MODE != 0 )
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// SKIP: !$PHONG && $PHONGMASK
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// SKIP: $BASETEXTURETRANSFORM2 && !$WORLDVERTEXTRANSITION
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// SKIP: $BASETEXTURETRANSFORM2 && $SEAMLESS
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// SKIP: $BASETEXTURETRANSFORM2 && $PHONG
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#include "shader_constant_register_map.h"
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#include "common_flashlight_fxc.h"
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#include "common_lightmappedgeneric_fxc.h"
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const float4 g_vShadowTweaks : register( PSREG_ENVMAP_TINT__SHADOW_TWEAKS );
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const float4 g_FogParams : register( PSREG_FOG_PARAMS );
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const float4 g_EyePos : register( PSREG_EYEPOS_SPEC_EXPONENT );
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const float4 g_FlashlightAttenuation : register( PSREG_FLASHLIGHT_ATTENUATION );
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const float4 g_DetailConstants : register( c0 );
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const float4 g_FlashlightPos : register( c1 );
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const float4 g_FresnelSpecParams : register( PSREG_FRESNEL_SPEC_PARAMS );
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#define g_SpecularExponent g_EyePos.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 PHONGMASK_BASEALPHA 1
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#define PHONGMASK_NORMALALPHA 2
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#define PHONGMASK_STANDALONE 3
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sampler SpotSampler : register( s0 );
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sampler BaseTextureSampler : register( s1 );
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sampler NormalizingCubemapSampler : register( s2 );
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// use a normalizing cube map here if we aren't normal mapping
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sampler BumpMapSampler : register( s3 );
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sampler BaseTextureSampler2 : register( s4 );
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#ifdef WORLDVERTEXTRANSITION
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sampler NormalMap2Sampler : register( s6 );
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#endif
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#if DETAILTEXTURE
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sampler DetailSampler : register( s8 );
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#endif
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#if FLASHLIGHTSHADOWS && ( defined( SHADER_MODEL_PS_2_B ) || defined( SHADER_MODEL_PS_3_0 ) )
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sampler RandomRotationSampler : register( s5 ); // Random rotation sampler
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sampler FlashlightDepthSampler : register( s7 );
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#endif
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#if PHONGMASK == PHONGMASK_STANDALONE
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sampler PhongMaskSampler : register( s9 );
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#endif
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#if FANCY_BLENDING
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sampler BlendModulationSampler : register( s10 );
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#endif
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struct PS_INPUT
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{
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float4 spotTexCoord : TEXCOORD0;
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#if SEAMLESS
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float3 SeamlessTexCoord : TEXCOORD1;
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#else
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#if BASETEXTURETRANSFORM2
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// Blixibon - Using two extra floats for $basetexturetransform2
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float4 baseTexCoord : TEXCOORD1;
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#else
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float2 baseTexCoord : TEXCOORD1;
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#endif
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#endif
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#if NORMALMAP
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#if PHONG
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float4 tangentPosToLightVector : TEXCOORD2;
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float4 normalMapTexCoord : TEXCOORD3;
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#else
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float3 tangentPosToLightVector : TEXCOORD2;
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float2 normalMapTexCoord : TEXCOORD3;
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#endif
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#else
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float3 worldPosToLightVector : TEXCOORD2;
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float3 normal : TEXCOORD3;
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#endif
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float2 detailCoords : TEXCOORD4;
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float4 worldPos_worldTransition : TEXCOORD5;
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float3 projPos : TEXCOORD6;
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float4 fogFactorW : TEXCOORD7;
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};
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float4 SampleNormal( sampler s, PS_INPUT i )
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{
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#if SEAMLESS
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float4 szy=tex2D( s, i.SeamlessTexCoord.zy );
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float4 sxz=tex2D( s, i.SeamlessTexCoord.xz );
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float4 syx=tex2D( s, i.SeamlessTexCoord.xy );
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return i.fogFactorW.r*szy + i.fogFactorW.g*sxz + i.fogFactorW.b*syx;
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#else
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#if NORMALMAP
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return tex2D( s, i.normalMapTexCoord.xy);
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#else
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return float4(0,0,1,1);
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#endif
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#endif
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}
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float4 main( PS_INPUT i ) : COLOR
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{
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bool bBase2 = WORLDVERTEXTRANSITION ? true : false;
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bool bBump = (NORMALMAP != 0) ? true : false;
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// Do spot stuff early since we can bail out
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float3 spotColor = float3(0,0,0);
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float3 vProjCoords = i.spotTexCoord.xyz / i.spotTexCoord.w;
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#if ( defined( _X360 ) )
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float3 ltz = vProjCoords.xyz < float3( 0.0f, 0.0f, 0.0f );
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float3 gto = vProjCoords.xyz > float3( 1.0f, 1.0f, 1.0f );
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[branch]
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if ( dot(ltz + gto, float3(1,1,1)) > 0 )
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{
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clip (-1);
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return float4(0,0,0,0);
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}
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else
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{
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spotColor = tex2D( SpotSampler, vProjCoords );
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[branch]
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if ( dot(spotColor.xyz, float3(1,1,1)) <= 0 )
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{
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clip(-1);
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return float4(0,0,0,0);
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}
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else
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{
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#else
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clip( vProjCoords.xyz );
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#if defined( SHADER_MODEL_PS_2_B ) || defined( SHADER_MODEL_PS_3_0 )
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clip( 1-vProjCoords.xyz );
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#endif
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spotColor = tex2D( SpotSampler, vProjCoords );
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#endif
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float4 baseColor = 0.0f;
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float4 baseColor2 = 0.0f;
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float4 vNormal = float4(0, 0, 1, 1);
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float3 baseTexCoords = float3(0,0,0);
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#if SEAMLESS
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baseTexCoords = i.SeamlessTexCoord.xyz;
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#else
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baseTexCoords.xy = i.baseTexCoord.xy;
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#endif
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#if BASETEXTURETRANSFORM2
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// Blixibon - Simpler version of GetBaseTextureAndNormal() that supports $basetexturetransform2
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// (This is duplicated in the original shader, but make this its own function in common_lightmappedgeneric_fxc.h if this becomes more widespread)
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baseColor = tex2D( BaseTextureSampler, baseTexCoords.xy );
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baseColor2 = tex2D( BaseTextureSampler2, i.baseTexCoord.wz );
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if ( bBump )
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{
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vNormal = tex2D( BumpMapSampler, baseTexCoords.xy );
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}
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#else
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GetBaseTextureAndNormal( BaseTextureSampler, BaseTextureSampler2, BumpMapSampler, bBase2, bBump, baseTexCoords, i.fogFactorW.xyz, baseColor, baseColor2, vNormal );
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#endif
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#if WORLDVERTEXTRANSITION
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float lerpAlpha = i.worldPos_worldTransition.a;
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// Blixibon
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#if (PIXELFOGTYPE != PIXEL_FOG_TYPE_HEIGHT) && (FANCY_BLENDING)
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float4 modt=tex2D(BlendModulationSampler,baseTexCoords);
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float minb=saturate(modt.g-modt.r);
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float maxb=saturate(modt.g+modt.r);
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lerpAlpha=smoothstep(minb,maxb,lerpAlpha);
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#endif
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#endif
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#if ( NORMALMAP == 0 )
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vNormal.xyz = normalize( i.normal.xyz );
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#endif
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#if ( NORMALMAP == 1 )
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vNormal.xyz = vNormal.xyz * 2.0f - 1.0f; // signed
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# if NORMALMAP2
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float3 normal2 = SampleNormal( NormalMap2Sampler, i ) * 2.0f - 1.0f;
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vNormal.xyz = lerp( vNormal.xyz, normal2, lerpAlpha );
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# endif
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#endif
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// ssbump
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#if ( NORMALMAP == 2 )
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# if NORMALMAP2
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float3 normal2 = SampleNormal( NormalMap2Sampler, i );
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vNormal.xyz = lerp( vNormal.xyz, normal2, lerpAlpha );
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# endif
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#else
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// Normalize normal after all of the lerps above (including the tri/bilinear texel fetches)
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vNormal.xyz = normalize( vNormal.xyz );
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#endif
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spotColor.rgb *= cFlashlightColor.rgb;
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// Compute per-pixel distance attenuation
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float3 delta = g_FlashlightPos.xyz - i.worldPos_worldTransition.xyz;
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float distSquared = dot( delta, delta );
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float dist = sqrt( distSquared );
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float farZ = g_FlashlightAttenuation.w;
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float endFalloffFactor = RemapValClamped( dist, farZ, 0.6f * farZ, 0.0f, 1.0f );
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float flAtten = saturate(endFalloffFactor * dot( g_FlashlightAttenuation.xyz, float3( 1.0f, 1.0f/dist, 1.0f/distSquared ) ) );
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#if FLASHLIGHTSHADOWS && ( defined( SHADER_MODEL_PS_2_B ) || defined( SHADER_MODEL_PS_3_0 ) )
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float flShadow = DoFlashlightShadow( FlashlightDepthSampler, RandomRotationSampler, vProjCoords, i.projPos.xy / i.projPos.z, FLASHLIGHTDEPTHFILTERMODE, g_vShadowTweaks, false );
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float flAttenuated = lerp( flShadow, 1.0f, g_vShadowTweaks.y ); // Blend between fully attenuated and not attenuated
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flShadow = saturate(lerp( flAttenuated, flShadow, flAtten )); // Blend between shadow and above, according to light attenuation
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spotColor *= flShadow;
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#endif
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#if WORLDVERTEXTRANSITION && !defined( SHADER_MODEL_PS_2_0 )
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baseColor = lerp( baseColor, baseColor2, lerpAlpha );
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#endif
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#if PHONG
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float3 vSpecMask = 1;
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# if PHONGMASK == PHONGMASK_BASEALPHA
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vSpecMask = baseColor.a;
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# elif PHONGMASK == PHONGMASK_NORMALALPHA
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vSpecMask = vNormal.a;
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# elif PHONGMASK == PHONGMASK_STANDALONE
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vSpecMask = tex2D( PhongMaskSampler, baseTexCoords ).rgb;
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# endif
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#endif
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#if DETAILTEXTURE
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float4 detailColor = float4( g_DetailConstants.xyz, 1.0f ) * tex2D( DetailSampler, i.detailCoords );
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float4 vBase = TextureCombine( float4(baseColor.xyz, 1.0f), detailColor, DETAIL_BLEND_MODE, g_DetailConstants.w );
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baseColor.xyz = vBase.xyz;
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#endif
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#if NORMALMAP == 0
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float3 worldPosToLightVector = texCUBE( NormalizingCubemapSampler, i.worldPosToLightVector ) * 2.0f - 1.0f;
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float nDotL = dot( worldPosToLightVector, vNormal.xyz );
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#endif
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#if NORMALMAP == 1
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// flashlightfixme: wrap this!
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float3 tangentPosToLightVector = texCUBE( NormalizingCubemapSampler, i.tangentPosToLightVector.xyz ) * 2.0f - 1.0f;
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float nDotL = dot( tangentPosToLightVector, vNormal.xyz );
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#endif
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#if NORMALMAP == 2
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float3 tangentPosToLightVector = texCUBE( NormalizingCubemapSampler, i.tangentPosToLightVector.xyz ) * 2.0f - 1.0f;
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float nDotL =
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vNormal.x*dot( tangentPosToLightVector, bumpBasis[0]) +
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vNormal.y*dot( tangentPosToLightVector, bumpBasis[1]) +
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vNormal.z*dot( tangentPosToLightVector, bumpBasis[2]);
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#endif
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float3 outColor;
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#if PHONG == 0
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outColor = spotColor * baseColor.xyz * saturate( nDotL );
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outColor *= flAtten;
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#else
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outColor = spotColor * baseColor.xyz * flAtten;
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// Not using normalizing cubemap here because of pixelated specular appearance. =/
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# if NORMALMAP == 0
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float3 posToLight = normalize( i.worldPosToLightVector );
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float3 posToEye = normalize( g_EyePos.xyz - i.worldPos_worldTransition.xyz);
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# else
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float3 posToLight = normalize( i.tangentPosToLightVector.xyz );
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float3 posToEye = normalize( float3(i.tangentPosToLightVector.w, i.normalMapTexCoord.zw) );
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# if NORMALMAP == 2
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vNormal.xyz = bumpBasis[0]*vNormal.x + bumpBasis[1]*vNormal.y + bumpBasis[2]*vNormal.z;
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vNormal.xyz = normalize( vNormal.xyz );
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# endif
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# endif
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float fFresnel = Fresnel( vNormal.xyz, posToEye, g_FresnelRanges );
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float3 specularColor = outColor * SpecularLight( vNormal.xyz, posToLight, g_SpecularExponent, posToEye, false, SpotSampler, fFresnel );
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outColor *= saturate( nDotL );
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outColor += specularColor * fFresnel * vSpecMask * g_SpecularBoost;
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#endif
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float fogFactor = CalcPixelFogFactor( PIXELFOGTYPE, g_FogParams, g_EyePos.z, i.worldPos_worldTransition.z, i.projPos.z );
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return FinalOutput( float4(outColor, baseColor.a) , fogFactor, PIXELFOGTYPE, TONEMAP_SCALE_LINEAR );
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// so we can jump over all of the above
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#if ( defined( _X360 ) )
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}
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}
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#endif
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} |