#ifndef UNIVERSAL_LIT_GBUFFER_PASS_INCLUDED #define UNIVERSAL_LIT_GBUFFER_PASS_INCLUDED #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl" #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/UnityGBuffer.hlsl" //Advanced Dissolve #ifndef REQUIRES_WORLD_SPACE_POS_INTERPOLATOR //Need world space vertex position #define REQUIRES_WORLD_SPACE_POS_INTERPOLATOR #endif #include "AdvancedDissolve_InitializeStandardLitSurfaceData.hlsl" // TODO: Currently we support viewDirTS caclulated in vertex shader and in fragments shader. // As both solutions have their advantages and disadvantages (etc. shader target 2.0 has only 8 interpolators). // We need to find out if we can stick to one solution, which we needs testing. // So keeping this until I get manaul QA pass. #if defined(_PARALLAXMAP) && (SHADER_TARGET >= 30) #define REQUIRES_TANGENT_SPACE_VIEW_DIR_INTERPOLATOR #endif #if (defined(_NORMALMAP) || (defined(_PARALLAXMAP) && !defined(REQUIRES_TANGENT_SPACE_VIEW_DIR_INTERPOLATOR))) || defined(_DETAIL) #define REQUIRES_WORLD_SPACE_TANGENT_INTERPOLATOR #endif // keep this file in sync with LitForwardPass.hlsl struct Attributes { float4 positionOS : POSITION; float3 normalOS : NORMAL; float4 tangentOS : TANGENT; float2 texcoord : TEXCOORD0; float2 staticLightmapUV : TEXCOORD1; float2 dynamicLightmapUV : TEXCOORD2; UNITY_VERTEX_INPUT_INSTANCE_ID }; struct Varyings { float2 uv : TEXCOORD0; #if defined(REQUIRES_WORLD_SPACE_POS_INTERPOLATOR) float3 positionWS : TEXCOORD1; #endif half3 normalWS : TEXCOORD2; #if defined(REQUIRES_WORLD_SPACE_TANGENT_INTERPOLATOR) half4 tangentWS : TEXCOORD3; // xyz: tangent, w: sign #endif #ifdef _ADDITIONAL_LIGHTS_VERTEX half3 vertexLighting : TEXCOORD4; // xyz: vertex lighting #endif #if defined(REQUIRES_VERTEX_SHADOW_COORD_INTERPOLATOR) float4 shadowCoord : TEXCOORD5; #endif #if defined(REQUIRES_TANGENT_SPACE_VIEW_DIR_INTERPOLATOR) half3 viewDirTS : TEXCOORD6; #endif DECLARE_LIGHTMAP_OR_SH(staticLightmapUV, vertexSH, 7); #ifdef DYNAMICLIGHTMAP_ON float2 dynamicLightmapUV : TEXCOORD8; // Dynamic lightmap UVs #endif float4 positionCS : SV_POSITION; UNITY_VERTEX_INPUT_INSTANCE_ID UNITY_VERTEX_OUTPUT_STEREO //Advanced Dissolve ADVANCED_DISSOLVE_UV(9) }; void InitializeInputData(Varyings input, half3 normalTS, out InputData inputData) { inputData = (InputData)0; #if defined(REQUIRES_WORLD_SPACE_POS_INTERPOLATOR) inputData.positionWS = input.positionWS; #endif inputData.positionCS = input.positionCS; half3 viewDirWS = GetWorldSpaceNormalizeViewDir(input.positionWS); #if defined(_NORMALMAP) || defined(_DETAIL) float sgn = input.tangentWS.w; // should be either +1 or -1 float3 bitangent = sgn * cross(input.normalWS.xyz, input.tangentWS.xyz); inputData.normalWS = TransformTangentToWorld(normalTS, half3x3(input.tangentWS.xyz, bitangent.xyz, input.normalWS.xyz)); #else inputData.normalWS = input.normalWS; #endif inputData.normalWS = NormalizeNormalPerPixel(inputData.normalWS); inputData.viewDirectionWS = viewDirWS; #if defined(REQUIRES_VERTEX_SHADOW_COORD_INTERPOLATOR) inputData.shadowCoord = input.shadowCoord; #elif defined(MAIN_LIGHT_CALCULATE_SHADOWS) inputData.shadowCoord = TransformWorldToShadowCoord(inputData.positionWS); #else inputData.shadowCoord = float4(0, 0, 0, 0); #endif inputData.fogCoord = 0.0; // we don't apply fog in the guffer pass #ifdef _ADDITIONAL_LIGHTS_VERTEX inputData.vertexLighting = input.vertexLighting.xyz; #else inputData.vertexLighting = half3(0, 0, 0); #endif #if defined(DYNAMICLIGHTMAP_ON) inputData.bakedGI = SAMPLE_GI(input.staticLightmapUV, input.dynamicLightmapUV, input.vertexSH, inputData.normalWS); #else inputData.bakedGI = SAMPLE_GI(input.staticLightmapUV, input.vertexSH, inputData.normalWS); #endif inputData.normalizedScreenSpaceUV = GetNormalizedScreenSpaceUV(input.positionCS); inputData.shadowMask = SAMPLE_SHADOWMASK(input.staticLightmapUV); } /////////////////////////////////////////////////////////////////////////////// // Vertex and Fragment functions // /////////////////////////////////////////////////////////////////////////////// // Used in Standard (Physically Based) shader Varyings LitGBufferPassVertex(Attributes input) { Varyings output = (Varyings)0; UNITY_SETUP_INSTANCE_ID(input); UNITY_TRANSFER_INSTANCE_ID(input, output); UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output); #if defined(CURVEDWORLD_IS_INSTALLED) && !defined(CURVEDWORLD_DISABLED_ON) #ifdef CURVEDWORLD_NORMAL_TRANSFORMATION_ON CURVEDWORLD_TRANSFORM_VERTEX_AND_NORMAL(input.positionOS, input.normalOS, input.tangentOS) #else CURVEDWORLD_TRANSFORM_VERTEX(input.positionOS) #endif #endif VertexPositionInputs vertexInput = GetVertexPositionInputs(input.positionOS.xyz); // normalWS and tangentWS already normalize. // this is required to avoid skewing the direction during interpolation // also required for per-vertex lighting and SH evaluation VertexNormalInputs normalInput = GetVertexNormalInputs(input.normalOS, input.tangentOS); output.uv = TRANSFORM_TEX(input.texcoord, _BaseMap); // already normalized from normal transform to WS. output.normalWS = normalInput.normalWS; #if defined(REQUIRES_WORLD_SPACE_TANGENT_INTERPOLATOR) || defined(REQUIRES_TANGENT_SPACE_VIEW_DIR_INTERPOLATOR) real sign = input.tangentOS.w * GetOddNegativeScale(); half4 tangentWS = half4(normalInput.tangentWS.xyz, sign); #endif #if defined(REQUIRES_WORLD_SPACE_TANGENT_INTERPOLATOR) output.tangentWS = tangentWS; #endif #if defined(REQUIRES_TANGENT_SPACE_VIEW_DIR_INTERPOLATOR) half3 viewDirWS = GetWorldSpaceNormalizeViewDir(vertexInput.positionWS); half3 viewDirTS = GetViewDirectionTangentSpace(tangentWS, output.normalWS, viewDirWS); output.viewDirTS = viewDirTS; #endif OUTPUT_LIGHTMAP_UV(input.staticLightmapUV, unity_LightmapST, output.staticLightmapUV); #ifdef DYNAMICLIGHTMAP_ON output.dynamicLightmapUV = input.dynamicLightmapUV.xy * unity_DynamicLightmapST.xy + unity_DynamicLightmapST.zw; #endif OUTPUT_SH(output.normalWS.xyz, output.vertexSH); #ifdef _ADDITIONAL_LIGHTS_VERTEX half3 vertexLight = VertexLighting(vertexInput.positionWS, normalInput.normalWS); output.vertexLighting = vertexLight; #endif #if defined(REQUIRES_WORLD_SPACE_POS_INTERPOLATOR) output.positionWS = vertexInput.positionWS; #endif #if defined(REQUIRES_VERTEX_SHADOW_COORD_INTERPOLATOR) output.shadowCoord = GetShadowCoord(vertexInput); #endif output.positionCS = vertexInput.positionCS; //Advanced Dissolve ADVANCED_DISSOLVE_INIT_UV(output, input.texcoord, output.positionCS) return output; } // Used in Standard (Physically Based) shader FragmentOutput LitGBufferPassFragment(Varyings input) { UNITY_SETUP_INSTANCE_ID(input); UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input); //Advanced Dissolve//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// #if defined(_AD_STATE_ENABLED) float4 dissolveBase = 0; #if defined(_AD_CUTOUT_STANDARD_SOURCE_BASE_ALPHA) || defined(_AD_EDGE_ADDITIONAL_COLOR_BASE_COLOR) dissolveBase = SAMPLE_TEXTURE2D(_BaseMap, sampler_BaseMap, input.uv); dissolveBase.rgb *= _BaseColor.rgb; #endif ADVANCED_DISSOLVE_SETUP_CUTOUT_SOURCE_USING_WS(input, dissolveBase, input.positionWS.xyz, input.normalWS.xyz) #if !defined(_ALPHATEST_ON) AdvancedDissolveClip(cutoutSource); #endif float3 dissolveAlbedo = 0; float3 dissolveEmission = 0; float dissolveBlend = AdvancedDissolveAlbedoEmission(cutoutSource, dissolveBase, dissolveAlbedo, dissolveEmission, input.uv); #endif //Advanced Dissolve///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// #if defined(_PARALLAXMAP) #if defined(REQUIRES_TANGENT_SPACE_VIEW_DIR_INTERPOLATOR) half3 viewDirTS = input.viewDirTS; #else half3 viewDirTS = GetViewDirectionTangentSpace(input.tangentWS, input.normalWS, input.viewDirWS); #endif ApplyPerPixelDisplacement(viewDirTS, input.uv); #endif SurfaceData surfaceData; #if defined(_AD_STATE_ENABLED) && defined(_ALPHATEST_ON) AdvancedDissolve_InitializeStandardLitSurfaceData(input.uv, surfaceData, cutoutSource); #else InitializeStandardLitSurfaceData(input.uv, surfaceData); #endif InputData inputData; InitializeInputData(input, surfaceData.normalTS, inputData); SETUP_DEBUG_TEXTURE_DATA(inputData, input.uv, _BaseMap); #ifdef _DBUFFER ApplyDecalToSurfaceData(input.positionCS, surfaceData, inputData); #endif // Stripped down version of UniversalFragmentPBR(). // in LitForwardPass GlobalIllumination (and temporarily LightingPhysicallyBased) are called inside UniversalFragmentPBR // in Deferred rendering we store the sum of these values (and of emission as well) in the GBuffer BRDFData brdfData; InitializeBRDFData(surfaceData.albedo, surfaceData.metallic, surfaceData.specular, surfaceData.smoothness, surfaceData.alpha, brdfData); //Advanced Dissolve///////////////////////////////////////// #if defined(_AD_STATE_ENABLED) surfaceData.albedo = lerp(surfaceData.albedo, dissolveAlbedo, dissolveBlend); surfaceData.emission = lerp(surfaceData.emission, dissolveEmission, dissolveBlend); #endif Light mainLight = GetMainLight(inputData.shadowCoord, inputData.positionWS, inputData.shadowMask); MixRealtimeAndBakedGI(mainLight, inputData.normalWS, inputData.bakedGI, inputData.shadowMask); half3 color = GlobalIllumination(brdfData, inputData.bakedGI, surfaceData.occlusion, inputData.positionWS, inputData.normalWS, inputData.viewDirectionWS); return BRDFDataToGbuffer(brdfData, inputData, surfaceData.smoothness, surfaceData.emission + color, surfaceData.occlusion); } #endif