Shader "HDRenderPipeline/StackLit" { Properties { // Following set of parameters represent the parameters node inside the MaterialGraph. // They are use to fill a SurfaceData. With a MaterialGraph this should not exist. // Reminder. Color here are in linear but the UI (color picker) do the conversion sRGB to linear // Be careful, do not change the name here to _Color. It will conflict with the "fake" parameters (see end of properties) required for GI. _BaseColor("BaseColor", Color) = (1,1,1,1) _BaseColorMap("BaseColorMap", 2D) = "white" {} _EmissiveColor("EmissiveColor", Color) = (1, 1, 1) _EmissiveColorMap("EmissiveColorMap", 2D) = "white" {} _EmissiveIntensity("EmissiveIntensity", Float) = 0 [ToggleUI] _AlbedoAffectEmissive("Albedo Affect Emissive", Float) = 0.0 _DistortionVectorMap("DistortionVectorMap", 2D) = "black" {} [ToggleUI] _DistortionEnable("Enable Distortion", Float) = 0.0 [ToggleUI] _DistortionOnly("Distortion Only", Float) = 0.0 [ToggleUI] _DistortionDepthTest("Distortion Depth Test Enable", Float) = 1.0 [Enum(Add, 0, Multiply, 1)] _DistortionBlendMode("Distortion Blend Mode", Int) = 0 [HideInInspector] _DistortionSrcBlend("Distortion Blend Src", Int) = 0 [HideInInspector] _DistortionDstBlend("Distortion Blend Dst", Int) = 0 [HideInInspector] _DistortionBlurSrcBlend("Distortion Blur Blend Src", Int) = 0 [HideInInspector] _DistortionBlurDstBlend("Distortion Blur Blend Dst", Int) = 0 [HideInInspector] _DistortionBlurBlendMode("Distortion Blur Blend Mode", Int) = 0 _DistortionScale("Distortion Scale", Float) = 1 _DistortionVectorScale("Distortion Vector Scale", Float) = 2 _DistortionVectorBias("Distortion Vector Bias", Float) = -1 _DistortionBlurScale("Distortion Blur Scale", Float) = 1 _DistortionBlurRemapMin("DistortionBlurRemapMin", Float) = 0.0 _DistortionBlurRemapMax("DistortionBlurRemapMax", Float) = 1.0 // Transparency [ToggleUI] _PreRefractionPass("PreRefractionPass", Float) = 0.0 [ToggleUI] _AlphaCutoffEnable("Alpha Cutoff Enable", Float) = 0.0 _AlphaCutoff("Alpha Cutoff", Range(0.0, 1.0)) = 0.5 _TransparentSortPriority("_TransparentSortPriority", Float) = 0 // Stencil state [HideInInspector] _StencilRef("_StencilRef", Int) = 2 // StencilLightingUsage.RegularLighting (fixed at compile time) [HideInInspector] _StencilWriteMask("_StencilWriteMask", Int) = 7 // StencilMask.Lighting (fixed at compile time) [HideInInspector] _StencilRefMV("_StencilRefMV", Int) = 128 // StencilLightingUsage.RegularLighting (fixed at compile time) [HideInInspector] _StencilWriteMaskMV("_StencilWriteMaskMV", Int) = 128 // StencilMask.ObjectsVelocity (fixed at compile time) // Blending state [HideInInspector] _SurfaceType("__surfacetype", Float) = 0.0 [HideInInspector] _BlendMode("__blendmode", Float) = 0.0 [HideInInspector] _SrcBlend("__src", Float) = 1.0 [HideInInspector] _DstBlend("__dst", Float) = 0.0 [HideInInspector] _ZWrite("__zw", Float) = 1.0 [HideInInspector] _CullMode("__cullmode", Float) = 2.0 [HideInInspector] _CullModeForward("__cullmodeForward", Float) = 2.0 // This mode is dedicated to Forward to correctly handle backface then front face rendering thin transparent [HideInInspector] _ZTestDepthEqualForOpaque("_ZTestDepthEqualForOpaque", Int) = 4 // Less equal [HideInInspector] _ZTestModeDistortion("_ZTestModeDistortion", Int) = 8 [ToggleUI] _EnableFogOnTransparent("Enable Fog", Float) = 1.0 [ToggleUI] _EnableBlendModePreserveSpecularLighting("Enable Blend Mode Preserve Specular Lighting", Float) = 1.0 [ToggleUI] _DoubleSidedEnable("Double sided enable", Float) = 0.0 [Enum(Flip, 0, Mirror, 1, None, 2)] _DoubleSidedNormalMode("Double sided normal mode", Float) = 1 // This is for the editor only, see BaseLitUI.cs: _DoubleSidedConstants will be set based on the mode. [HideInInspector] _DoubleSidedConstants("_DoubleSidedConstants", Vector) = (1, 1, -1, 0) // Caution: C# code in BaseLitUI.cs call LightmapEmissionFlagsProperty() which assume that there is an existing "_EmissionColor" // value that exist to identify if the GI emission need to be enabled. // In our case we don't use such a mechanism but need to keep the code quiet. We declare the value and always enable it. // TODO: Fix the code in legacy unity so we can customize the beahvior for GI _EmissionColor("Color", Color) = (1, 1, 1) // HACK: GI Baking system relies on some properties existing in the shader ("_MainTex", "_Cutoff" and "_Color") for opacity handling, so we need to store our version of those parameters in the hard-coded name the GI baking system recognizes. _MainTex("Albedo", 2D) = "white" {} _Color("Color", Color) = (1,1,1,1) _Cutoff("Alpha Cutoff", Range(0.0, 1.0)) = 0.5 } HLSLINCLUDE #pragma target 4.5 #pragma only_renderers d3d11 ps4 xboxone vulkan metal //------------------------------------------------------------------------------------- // Variant //------------------------------------------------------------------------------------- #pragma shader_feature _ALPHATEST_ON #pragma shader_feature _DOUBLESIDED_ON #pragma shader_feature _EMISSIVE_COLOR_MAP // Keyword for transparent #pragma shader_feature _SURFACE_TYPE_TRANSPARENT #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_PRE_MULTIPLY #pragma shader_feature _BLENDMODE_PRESERVE_SPECULAR_LIGHTING // easily handled in material.hlsl, so adding this already. #pragma shader_feature _ENABLE_FOG_ON_TRANSPARENT //enable GPU instancing support #pragma multi_compile_instancing //------------------------------------------------------------------------------------- // Define //------------------------------------------------------------------------------------- #define UNITY_MATERIAL_STACKLIT // Need to be define before including Material.hlsl //------------------------------------------------------------------------------------- // Include //------------------------------------------------------------------------------------- #include "CoreRP/ShaderLibrary/Common.hlsl" #include "../../ShaderPass/FragInputs.hlsl" #include "../../ShaderPass/ShaderPass.cs.hlsl" //------------------------------------------------------------------------------------- // variable declaration //------------------------------------------------------------------------------------- #include "../../Material/StackLit/StackLitProperties.hlsl" // All our shaders use same name for entry point #pragma vertex Vert #pragma fragment Frag ENDHLSL SubShader { // This tags allow to use the shader replacement features Tags{ "RenderPipeline" = "HDRenderPipeline" "RenderType" = "HDStackLitShader" } // Caution: The outline selection in the editor use the vertex shader/hull/domain shader of the first pass declare. So it should not be the meta pass. Pass { Name "Depth prepass" Tags{ "LightMode" = "DepthForwardOnly" } Cull[_CullMode] ZWrite On HLSLPROGRAM #define SHADERPASS SHADERPASS_DEPTH_ONLY #include "../../ShaderVariables.hlsl" #include "../../Material/Material.hlsl" #include "ShaderPass/StackLitDepthPass.hlsl" #include "StackLitData.hlsl" #include "../../ShaderPass/ShaderPassDepthOnly.hlsl" ENDHLSL } // Extracts information for lightmapping, GI (emission, albedo, ...) // This pass it not used during regular rendering. Pass { Name "META" Tags{ "LightMode" = "Meta" } Cull Off HLSLPROGRAM // Lightmap memo // DYNAMICLIGHTMAP_ON is used when we have an "enlighten lightmap" ie a lightmap updated at runtime by enlighten.This lightmap contain indirect lighting from realtime lights and realtime emissive material.Offline baked lighting(from baked material / light, // both direct and indirect lighting) will hand up in the "regular" lightmap->LIGHTMAP_ON. #define SHADERPASS SHADERPASS_LIGHT_TRANSPORT #include "../../ShaderVariables.hlsl" #include "../../Material/Material.hlsl" #include "ShaderPass/StackLitSharePass.hlsl" #include "StackLitData.hlsl" #include "../../ShaderPass/ShaderPassLightTransport.hlsl" ENDHLSL } Pass { Name "ShadowCaster" Tags{ "LightMode" = "ShadowCaster" } Cull[_CullMode] ZClip [_ZClip] ZWrite On ZTest LEqual ColorMask 0 HLSLPROGRAM #define SHADERPASS SHADERPASS_SHADOWS #define USE_LEGACY_UNITY_MATRIX_VARIABLES #include "../../ShaderVariables.hlsl" #include "../../Material/Material.hlsl" #include "ShaderPass/StackLitDepthPass.hlsl" #include "StackLitData.hlsl" #include "../../ShaderPass/ShaderPassDepthOnly.hlsl" ENDHLSL } Pass { Name "Distortion" // Name is not used Tags { "LightMode" = "DistortionVectors" } // This will be only for transparent object based on the RenderQueue index Blend [_DistortionSrcBlend] [_DistortionDstBlend], [_DistortionBlurSrcBlend] [_DistortionBlurDstBlend] BlendOp Add, [_DistortionBlurBlendOp] ZTest [_ZTestModeDistortion] ZWrite off Cull [_CullMode] HLSLPROGRAM #define SHADERPASS SHADERPASS_DISTORTION #include "../../ShaderVariables.hlsl" #include "../../Material/Material.hlsl" #include "ShaderPass/StackLitDistortionPass.hlsl" #include "StackLitData.hlsl" #include "../../ShaderPass/ShaderPassDistortion.hlsl" ENDHLSL } // StackLit shader always render in forward Pass { Name "Forward" // Name is not used Tags { "LightMode" = "ForwardOnly" } Stencil { WriteMask [_StencilWriteMask] Ref [_StencilRef] Comp Always Pass Replace } Blend [_SrcBlend] [_DstBlend] // In case of forward we want to have depth equal for opaque mesh ZTest [_ZTestDepthEqualForOpaque] ZWrite [_ZWrite] Cull [_CullModeForward] // // NOTE: For _CullModeForward, see BaseLitUI and the handling of TransparentBackfaceEnable: // Basically, we need to use it to support a TransparentBackface pass before this pass // (and it should be placed just before this one) for separate backface and frontface rendering, // eg for "hair shader style" approximate sorting, see eg Thorsten Scheuermann writeups on this: // http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.607.1272&rep=rep1&type=pdf // http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2012/10/Scheuermann_HairSketchSlides.pdf // http://web.engr.oregonstate.edu/~mjb/cs519/Projects/Papers/HairRendering.pdf // // See Lit.shader and the order of the passes after a DistortionVectors, we have: // TransparentDepthPrepass, TransparentBackface, Forward, TransparentDepthPostpass HLSLPROGRAM #pragma multi_compile _ DEBUG_DISPLAY //NEWLITTODO //#pragma multi_compile _ LIGHTMAP_ON //#pragma multi_compile _ DIRLIGHTMAP_COMBINED //#pragma multi_compile _ DYNAMICLIGHTMAP_ON //#pragma multi_compile _ SHADOWS_SHADOWMASK // #include "../../Lighting/Forward.hlsl" : nothing left in there. //#pragma multi_compile LIGHTLOOP_SINGLE_PASS LIGHTLOOP_TILE_PASS #define LIGHTLOOP_TILE_PASS #pragma multi_compile USE_FPTL_LIGHTLIST USE_CLUSTERED_LIGHTLIST #define SHADERPASS SHADERPASS_FORWARD // In case of opaque we don't want to perform the alpha test, it is done in depth prepass and we use depth equal for ztest (setup from UI) #ifndef _SURFACE_TYPE_TRANSPARENT #define SHADERPASS_FORWARD_BYPASS_ALPHA_TEST #endif #include "../../ShaderVariables.hlsl" #ifdef DEBUG_DISPLAY #include "../../Debug/DebugDisplay.hlsl" #endif #include "../../Lighting/Lighting.hlsl" //...this will include #include "../../Material/Material.hlsl" but also LightLoop which the forward pass directly uses. #include "ShaderPass/StackLitSharePass.hlsl" #include "StackLitData.hlsl" #include "../../ShaderPass/ShaderPassForward.hlsl" ENDHLSL } } CustomEditor "Experimental.Rendering.HDPipeline.StackLitGUI" }