private static bool GenerateShaderPass(CustomRenderTextureNode masterNode, GenerationMode mode, ShaderGenerator result, List <string> sourceAssetDependencyPaths) { string templateLocation = Path.Combine( HDUtils.GetHDRenderPipelinePath(), "Editor", "CustomRenderTextureShaderGraph", "CustomRenderTexturePass.template"); if (!File.Exists(templateLocation)) { Debug.LogError("Template not found: " + templateLocation); return(false); } var activeFields = new HashSet <string>() { "uv0" }; var pixelNodes = ListPool <AbstractMaterialNode> .Get(); NodeUtils.DepthFirstCollectNodesFromNode(pixelNodes, masterNode, NodeUtils.IncludeSelf.Include, CustomRenderTextureNode.AllSlots); var pixelRequirements = ShaderGraphRequirements.FromNodes(pixelNodes, ShaderStageCapability.Fragment, false); var graphNodeFunctions = new ShaderStringBuilder(); graphNodeFunctions.IncreaseIndent(); var functionRegistry = new FunctionRegistry(graphNodeFunctions); var pixelSlots = HDSubShaderUtilities.FindMaterialSlotsOnNode(CustomRenderTextureNode.AllSlots, masterNode); // build the graph outputs structure to hold the results of each active slots (and fill out activeFields to indicate they are active) string pixelGraphInputStructName = "SurfaceDescriptionInputs"; string pixelGraphOutputStructName = "SurfaceDescriptionOutputs"; string pixelGraphEvalFunctionName = "SurfaceDescriptionFunction"; var sharedProperties = new PropertyCollector(); var pixelGraphEvalFunction = new ShaderStringBuilder(); // Build the graph evaluation code, to evaluate the specified slots GraphUtil.GenerateSurfaceDescriptionFunction( pixelNodes, masterNode, masterNode.owner as GraphData, pixelGraphEvalFunction, functionRegistry, sharedProperties, pixelRequirements, mode, pixelGraphEvalFunctionName, pixelGraphOutputStructName, null, pixelSlots, pixelGraphInputStructName); // build graph inputs structures ShaderGenerator pixelGraphInputs = new ShaderGenerator(); ShaderSpliceUtil.BuildType(typeof(HDRPShaderStructs.SurfaceDescriptionInputs), activeFields, pixelGraphInputs); // build graph code var graph = new ShaderGenerator(); { graph.AddShaderChunk("// Shared Graph Properties (uniform inputs)"); graph.AddShaderChunk(sharedProperties.GetPropertiesDeclaration(1, mode)); graph.AddShaderChunk("// Shared Graph Node Functions"); graph.AddShaderChunk(graphNodeFunctions.ToString()); graph.AddShaderChunk("// Pixel Graph Evaluation"); graph.Indent(); graph.AddShaderChunk(pixelGraphEvalFunction.ToString()); graph.Deindent(); } var namedFragments = new Dictionary <string, string>() { { "Graph", graph.GetShaderString(2, false) }, }; string sharedTemplatePath = Path.Combine(HDUtils.GetHDRenderPipelinePath(), "Editor", "ShaderGraph"); string buildTypeAssemblyNameFormat = "UnityEditor.Experimental.Rendering.HDPipeline.HDRPShaderStructs+{0}, " + typeof(HDSubShaderUtilities).Assembly.FullName.ToString(); var templatePreprocessor = new ShaderSpliceUtil.TemplatePreprocessor(activeFields, namedFragments, false, sharedTemplatePath, sourceAssetDependencyPaths, buildTypeAssemblyNameFormat); templatePreprocessor.ProcessTemplateFile(templateLocation); result.AddShaderChunk(templatePreprocessor.GetShaderCode().ToString(), false); return(true); }
public static bool GenerateShaderPass(AbstractMaterialNode masterNode, Pass pass, GenerationMode mode, SurfaceMaterialOptions materialOptions, HashSet <string> activeFields, ShaderGenerator result, List <string> sourceAssetDependencyPaths, bool vertexActive) { string templatePath = Path.Combine(HDUtils.GetHDRenderPipelinePath(), "Editor/Material"); string templateLocation = Path.Combine(Path.Combine(Path.Combine(templatePath, pass.MaterialName), "ShaderGraph"), pass.TemplateName); if (!File.Exists(templateLocation)) { // TODO: produce error here Debug.LogError("Template not found: " + templateLocation); return(false); } bool debugOutput = false; // grab all of the active nodes (for pixel and vertex graphs) var vertexNodes = ListPool <INode> .Get(); NodeUtils.DepthFirstCollectNodesFromNode(vertexNodes, masterNode, NodeUtils.IncludeSelf.Include, pass.VertexShaderSlots); var pixelNodes = ListPool <INode> .Get(); NodeUtils.DepthFirstCollectNodesFromNode(pixelNodes, masterNode, NodeUtils.IncludeSelf.Include, pass.PixelShaderSlots); // graph requirements describe what the graph itself requires var pixelRequirements = ShaderGraphRequirements.FromNodes(pixelNodes, ShaderStageCapability.Fragment, false); // TODO: is ShaderStageCapability.Fragment correct? var vertexRequirements = ShaderGraphRequirements.FromNodes(vertexNodes, ShaderStageCapability.Vertex, false); var graphRequirements = pixelRequirements.Union(vertexRequirements); // Function Registry tracks functions to remove duplicates, it wraps a string builder that stores the combined function string ShaderStringBuilder graphNodeFunctions = new ShaderStringBuilder(); graphNodeFunctions.IncreaseIndent(); var functionRegistry = new FunctionRegistry(graphNodeFunctions); // TODO: this can be a shared function for all HDRP master nodes -- From here through GraphUtil.GenerateSurfaceDescription(..) // Build the list of active slots based on what the pass requires var pixelSlots = HDSubShaderUtilities.FindMaterialSlotsOnNode(pass.PixelShaderSlots, masterNode); var vertexSlots = HDSubShaderUtilities.FindMaterialSlotsOnNode(pass.VertexShaderSlots, masterNode); // properties used by either pixel and vertex shader PropertyCollector sharedProperties = new PropertyCollector(); // build the graph outputs structure to hold the results of each active slots (and fill out activeFields to indicate they are active) string pixelGraphInputStructName = "SurfaceDescriptionInputs"; string pixelGraphOutputStructName = "SurfaceDescription"; string pixelGraphEvalFunctionName = "SurfaceDescriptionFunction"; ShaderStringBuilder pixelGraphEvalFunction = new ShaderStringBuilder(); ShaderStringBuilder pixelGraphOutputs = new ShaderStringBuilder(); // build initial requirements HDRPShaderStructs.AddActiveFieldsFromPixelGraphRequirements(activeFields, pixelRequirements); // build the graph outputs structure, and populate activeFields with the fields of that structure GraphUtil.GenerateSurfaceDescriptionStruct(pixelGraphOutputs, pixelSlots, true, pixelGraphOutputStructName, activeFields); // Build the graph evaluation code, to evaluate the specified slots GraphUtil.GenerateSurfaceDescriptionFunction( pixelNodes, masterNode, masterNode.owner as AbstractMaterialGraph, pixelGraphEvalFunction, functionRegistry, sharedProperties, pixelRequirements, // TODO : REMOVE UNUSED mode, pixelGraphEvalFunctionName, pixelGraphOutputStructName, null, pixelSlots, pixelGraphInputStructName); string vertexGraphInputStructName = "VertexDescriptionInputs"; string vertexGraphOutputStructName = "VertexDescription"; string vertexGraphEvalFunctionName = "VertexDescriptionFunction"; ShaderStringBuilder vertexGraphEvalFunction = new ShaderStringBuilder(); ShaderStringBuilder vertexGraphOutputs = new ShaderStringBuilder(); // check for vertex animation -- enables HAVE_VERTEX_MODIFICATION if (vertexActive) { vertexActive = true; activeFields.Add("features.modifyMesh"); HDRPShaderStructs.AddActiveFieldsFromVertexGraphRequirements(activeFields, vertexRequirements); // ------------------------------------- // Generate Output structure for Vertex Description function GraphUtil.GenerateVertexDescriptionStruct(vertexGraphOutputs, vertexSlots, vertexGraphOutputStructName, activeFields); // ------------------------------------- // Generate Vertex Description function GraphUtil.GenerateVertexDescriptionFunction( masterNode.owner as AbstractMaterialGraph, vertexGraphEvalFunction, functionRegistry, sharedProperties, mode, vertexNodes, vertexSlots, vertexGraphInputStructName, vertexGraphEvalFunctionName, vertexGraphOutputStructName); } var blendCode = new ShaderStringBuilder(); var cullCode = new ShaderStringBuilder(); var zTestCode = new ShaderStringBuilder(); var zWriteCode = new ShaderStringBuilder(); var zClipCode = new ShaderStringBuilder(); var stencilCode = new ShaderStringBuilder(); var colorMaskCode = new ShaderStringBuilder(); HDSubShaderUtilities.BuildRenderStatesFromPassAndMaterialOptions(pass, materialOptions, blendCode, cullCode, zTestCode, zWriteCode, zClipCode, stencilCode, colorMaskCode); HDRPShaderStructs.AddRequiredFields(pass.RequiredFields, activeFields); // propagate active field requirements using dependencies ShaderSpliceUtil.ApplyDependencies( activeFields, new List <Dependency[]>() { HDRPShaderStructs.FragInputs.dependencies, HDRPShaderStructs.VaryingsMeshToPS.standardDependencies, HDRPShaderStructs.SurfaceDescriptionInputs.dependencies, HDRPShaderStructs.VertexDescriptionInputs.dependencies }); // debug output all active fields var interpolatorDefines = new ShaderGenerator(); if (debugOutput) { interpolatorDefines.AddShaderChunk("// ACTIVE FIELDS:"); foreach (string f in activeFields) { interpolatorDefines.AddShaderChunk("// " + f); } } // build graph inputs structures ShaderGenerator pixelGraphInputs = new ShaderGenerator(); ShaderSpliceUtil.BuildType(typeof(HDRPShaderStructs.SurfaceDescriptionInputs), activeFields, pixelGraphInputs); ShaderGenerator vertexGraphInputs = new ShaderGenerator(); ShaderSpliceUtil.BuildType(typeof(HDRPShaderStructs.VertexDescriptionInputs), activeFields, vertexGraphInputs); ShaderGenerator defines = new ShaderGenerator(); { defines.AddShaderChunk(string.Format("#define SHADERPASS {0}", pass.ShaderPassName), true); if (pass.ExtraDefines != null) { foreach (var define in pass.ExtraDefines) { defines.AddShaderChunk(define); } } if (graphRequirements.requiresDepthTexture) { defines.AddShaderChunk("#define REQUIRE_DEPTH_TEXTURE"); } defines.AddGenerator(interpolatorDefines); } var shaderPassIncludes = new ShaderGenerator(); if (pass.Includes != null) { foreach (var include in pass.Includes) { shaderPassIncludes.AddShaderChunk(include); } } // build graph code var graph = new ShaderGenerator(); { graph.AddShaderChunk("// Shared Graph Properties (uniform inputs)"); graph.AddShaderChunk(sharedProperties.GetPropertiesDeclaration(1)); if (vertexActive) { graph.AddShaderChunk("// Vertex Graph Inputs"); graph.Indent(); graph.AddGenerator(vertexGraphInputs); graph.Deindent(); graph.AddShaderChunk("// Vertex Graph Outputs"); graph.Indent(); graph.AddShaderChunk(vertexGraphOutputs.ToString()); graph.Deindent(); } graph.AddShaderChunk("// Pixel Graph Inputs"); graph.Indent(); graph.AddGenerator(pixelGraphInputs); graph.Deindent(); graph.AddShaderChunk("// Pixel Graph Outputs"); graph.Indent(); graph.AddShaderChunk(pixelGraphOutputs.ToString()); graph.Deindent(); graph.AddShaderChunk("// Shared Graph Node Functions"); graph.AddShaderChunk(graphNodeFunctions.ToString()); if (vertexActive) { graph.AddShaderChunk("// Vertex Graph Evaluation"); graph.Indent(); graph.AddShaderChunk(vertexGraphEvalFunction.ToString()); graph.Deindent(); } graph.AddShaderChunk("// Pixel Graph Evaluation"); graph.Indent(); graph.AddShaderChunk(pixelGraphEvalFunction.ToString()); graph.Deindent(); } // build the hash table of all named fragments TODO: could make this Dictionary<string, ShaderGenerator / string> ? Dictionary <string, string> namedFragments = new Dictionary <string, string>(); namedFragments.Add("Defines", defines.GetShaderString(2, false)); namedFragments.Add("Graph", graph.GetShaderString(2, false)); namedFragments.Add("LightMode", pass.LightMode); namedFragments.Add("PassName", pass.Name); namedFragments.Add("Includes", shaderPassIncludes.GetShaderString(2, false)); namedFragments.Add("Blending", blendCode.ToString()); namedFragments.Add("Culling", cullCode.ToString()); namedFragments.Add("ZTest", zTestCode.ToString()); namedFragments.Add("ZWrite", zWriteCode.ToString()); namedFragments.Add("ZClip", zClipCode.ToString()); namedFragments.Add("Stencil", stencilCode.ToString()); namedFragments.Add("ColorMask", colorMaskCode.ToString()); namedFragments.Add("LOD", materialOptions.lod.ToString()); // this is the format string for building the 'C# qualified assembly type names' for $buildType() commands string buildTypeAssemblyNameFormat = "UnityEditor.Experimental.Rendering.HDPipeline.HDRPShaderStructs+{0}, " + typeof(HDSubShaderUtilities).Assembly.FullName.ToString(); string sharedTemplatePath = Path.Combine(Path.Combine(HDUtils.GetHDRenderPipelinePath(), "Editor"), "ShaderGraph"); // process the template to generate the shader code for this pass ShaderSpliceUtil.TemplatePreprocessor templatePreprocessor = new ShaderSpliceUtil.TemplatePreprocessor(activeFields, namedFragments, debugOutput, sharedTemplatePath, sourceAssetDependencyPaths, buildTypeAssemblyNameFormat); templatePreprocessor.ProcessTemplateFile(templateLocation); result.AddShaderChunk(templatePreprocessor.GetShaderCode().ToString(), false); return(true); }
public static bool GenerateShaderPass(AbstractMaterialNode masterNode, ShaderPass pass, GenerationMode mode, ActiveFields activeFields, ShaderGenerator result, List <string> sourceAssetDependencyPaths, List <Dependency[]> dependencies, string resourceClassName, string assemblyName) { // -------------------------------------------------- // Debug // Get scripting symbols BuildTargetGroup buildTargetGroup = EditorUserBuildSettings.selectedBuildTargetGroup; string defines = PlayerSettings.GetScriptingDefineSymbolsForGroup(buildTargetGroup); bool isDebug = defines.Contains(kDebugSymbol); // -------------------------------------------------- // Setup // Initiailize Collectors var propertyCollector = new PropertyCollector(); var keywordCollector = new KeywordCollector(); masterNode.owner.CollectShaderKeywords(keywordCollector, mode); // Get upstream nodes from ShaderPass port mask List <AbstractMaterialNode> vertexNodes; List <AbstractMaterialNode> pixelNodes; GetUpstreamNodesForShaderPass(masterNode, pass, out vertexNodes, out pixelNodes); // Track permutation indices for all nodes List <int>[] vertexNodePermutations = new List <int> [vertexNodes.Count]; List <int>[] pixelNodePermutations = new List <int> [pixelNodes.Count]; // Get active fields from upstream Node requirements ShaderGraphRequirementsPerKeyword graphRequirements; GetActiveFieldsAndPermutationsForNodes(masterNode, pass, keywordCollector, vertexNodes, pixelNodes, vertexNodePermutations, pixelNodePermutations, activeFields, out graphRequirements); // GET CUSTOM ACTIVE FIELDS HERE! // Get active fields from ShaderPass AddRequiredFields(pass.requiredAttributes, activeFields.baseInstance); AddRequiredFields(pass.requiredVaryings, activeFields.baseInstance); // Get Port references from ShaderPass var pixelSlots = FindMaterialSlotsOnNode(pass.pixelPorts, masterNode); var vertexSlots = FindMaterialSlotsOnNode(pass.vertexPorts, masterNode); // Function Registry var functionBuilder = new ShaderStringBuilder(); var functionRegistry = new FunctionRegistry(functionBuilder); // Hash table of named $splice(name) commands // Key: splice token // Value: string to splice Dictionary <string, string> spliceCommands = new Dictionary <string, string>(); // -------------------------------------------------- // Dependencies // Propagate active field requirements using dependencies // Must be executed before types are built foreach (var instance in activeFields.all.instances) { ShaderSpliceUtil.ApplyDependencies(instance, dependencies); } // -------------------------------------------------- // Pass Setup // Name if (!string.IsNullOrEmpty(pass.displayName)) { spliceCommands.Add("PassName", $"Name \"{pass.displayName}\""); } else { spliceCommands.Add("PassName", "// Name: <None>"); } // Tags if (!string.IsNullOrEmpty(pass.lightMode)) { spliceCommands.Add("LightMode", $"\"LightMode\" = \"{pass.lightMode}\""); } else { spliceCommands.Add("LightMode", "// LightMode: <None>"); } // Render state BuildRenderStatesFromPass(pass, ref spliceCommands); // -------------------------------------------------- // Pass Code // Pragmas using (var passPragmaBuilder = new ShaderStringBuilder()) { if (pass.pragmas != null) { foreach (string pragma in pass.pragmas) { passPragmaBuilder.AppendLine($"#pragma {pragma}"); } } if (passPragmaBuilder.length == 0) { passPragmaBuilder.AppendLine("// PassPragmas: <None>"); } spliceCommands.Add("PassPragmas", passPragmaBuilder.ToCodeBlack()); } // Includes using (var passIncludeBuilder = new ShaderStringBuilder()) { if (pass.includes != null) { foreach (string include in pass.includes) { passIncludeBuilder.AppendLine($"#include \"{include}\""); } } if (passIncludeBuilder.length == 0) { passIncludeBuilder.AppendLine("// PassIncludes: <None>"); } spliceCommands.Add("PassIncludes", passIncludeBuilder.ToCodeBlack()); } // Keywords using (var passKeywordBuilder = new ShaderStringBuilder()) { if (pass.keywords != null) { foreach (KeywordDescriptor keyword in pass.keywords) { passKeywordBuilder.AppendLine(keyword.ToDeclarationString()); } } if (passKeywordBuilder.length == 0) { passKeywordBuilder.AppendLine("// PassKeywords: <None>"); } spliceCommands.Add("PassKeywords", passKeywordBuilder.ToCodeBlack()); } // -------------------------------------------------- // Graph Vertex var vertexBuilder = new ShaderStringBuilder(); // If vertex modification enabled if (activeFields.baseInstance.Contains("features.graphVertex")) { // Setup string vertexGraphInputName = "VertexDescriptionInputs"; string vertexGraphOutputName = "VertexDescription"; string vertexGraphFunctionName = "VertexDescriptionFunction"; var vertexGraphInputGenerator = new ShaderGenerator(); var vertexGraphFunctionBuilder = new ShaderStringBuilder(); var vertexGraphOutputBuilder = new ShaderStringBuilder(); // Build vertex graph inputs ShaderSpliceUtil.BuildType(GetTypeForStruct("VertexDescriptionInputs", resourceClassName, assemblyName), activeFields, vertexGraphInputGenerator, isDebug); // Build vertex graph outputs // Add struct fields to active fields SubShaderGenerator.GenerateVertexDescriptionStruct(vertexGraphOutputBuilder, vertexSlots, vertexGraphOutputName, activeFields.baseInstance); // Build vertex graph functions from ShaderPass vertex port mask SubShaderGenerator.GenerateVertexDescriptionFunction( masterNode.owner as GraphData, vertexGraphFunctionBuilder, functionRegistry, propertyCollector, keywordCollector, mode, masterNode, vertexNodes, vertexNodePermutations, vertexSlots, vertexGraphInputName, vertexGraphFunctionName, vertexGraphOutputName); // Generate final shader strings vertexBuilder.AppendLines(vertexGraphInputGenerator.GetShaderString(0, false)); vertexBuilder.AppendNewLine(); vertexBuilder.AppendLines(vertexGraphOutputBuilder.ToString()); vertexBuilder.AppendNewLine(); vertexBuilder.AppendLines(vertexGraphFunctionBuilder.ToString()); } // Add to splice commands if (vertexBuilder.length == 0) { vertexBuilder.AppendLine("// GraphVertex: <None>"); } spliceCommands.Add("GraphVertex", vertexBuilder.ToCodeBlack()); // -------------------------------------------------- // Graph Pixel // Setup string pixelGraphInputName = "SurfaceDescriptionInputs"; string pixelGraphOutputName = "SurfaceDescription"; string pixelGraphFunctionName = "SurfaceDescriptionFunction"; var pixelGraphInputGenerator = new ShaderGenerator(); var pixelGraphOutputBuilder = new ShaderStringBuilder(); var pixelGraphFunctionBuilder = new ShaderStringBuilder(); // Build pixel graph inputs ShaderSpliceUtil.BuildType(GetTypeForStruct("SurfaceDescriptionInputs", resourceClassName, assemblyName), activeFields, pixelGraphInputGenerator, isDebug); // Build pixel graph outputs // Add struct fields to active fields SubShaderGenerator.GenerateSurfaceDescriptionStruct(pixelGraphOutputBuilder, pixelSlots, pixelGraphOutputName, activeFields.baseInstance); // Build pixel graph functions from ShaderPass pixel port mask SubShaderGenerator.GenerateSurfaceDescriptionFunction( pixelNodes, pixelNodePermutations, masterNode, masterNode.owner as GraphData, pixelGraphFunctionBuilder, functionRegistry, propertyCollector, keywordCollector, mode, pixelGraphFunctionName, pixelGraphOutputName, null, pixelSlots, pixelGraphInputName); using (var pixelBuilder = new ShaderStringBuilder()) { // Generate final shader strings pixelBuilder.AppendLines(pixelGraphInputGenerator.GetShaderString(0, false)); pixelBuilder.AppendNewLine(); pixelBuilder.AppendLines(pixelGraphOutputBuilder.ToString()); pixelBuilder.AppendNewLine(); pixelBuilder.AppendLines(pixelGraphFunctionBuilder.ToString()); // Add to splice commands if (pixelBuilder.length == 0) { pixelBuilder.AppendLine("// GraphPixel: <None>"); } spliceCommands.Add("GraphPixel", pixelBuilder.ToCodeBlack()); } // -------------------------------------------------- // Graph Functions if (functionBuilder.length == 0) { functionBuilder.AppendLine("// GraphFunctions: <None>"); } spliceCommands.Add("GraphFunctions", functionBuilder.ToCodeBlack()); // -------------------------------------------------- // Graph Keywords using (var keywordBuilder = new ShaderStringBuilder()) { keywordCollector.GetKeywordsDeclaration(keywordBuilder, mode); if (keywordBuilder.length == 0) { keywordBuilder.AppendLine("// GraphKeywords: <None>"); } spliceCommands.Add("GraphKeywords", keywordBuilder.ToCodeBlack()); } // -------------------------------------------------- // Graph Properties using (var propertyBuilder = new ShaderStringBuilder()) { propertyCollector.GetPropertiesDeclaration(propertyBuilder, mode, masterNode.owner.concretePrecision); if (propertyBuilder.length == 0) { propertyBuilder.AppendLine("// GraphProperties: <None>"); } spliceCommands.Add("GraphProperties", propertyBuilder.ToCodeBlack()); } // -------------------------------------------------- // Graph Defines using (var graphDefines = new ShaderStringBuilder()) { graphDefines.AppendLine("#define {0}", pass.referenceName); if (graphRequirements.permutationCount > 0) { List <int> activePermutationIndices; // Depth Texture activePermutationIndices = graphRequirements.allPermutations.instances .Where(p => p.requirements.requiresDepthTexture) .Select(p => p.permutationIndex) .ToList(); if (activePermutationIndices.Count > 0) { graphDefines.AppendLine(KeywordUtil.GetKeywordPermutationSetConditional(activePermutationIndices)); graphDefines.AppendLine("#define REQUIRE_DEPTH_TEXTURE"); graphDefines.AppendLine("#endif"); } // Opaque Texture activePermutationIndices = graphRequirements.allPermutations.instances .Where(p => p.requirements.requiresCameraOpaqueTexture) .Select(p => p.permutationIndex) .ToList(); if (activePermutationIndices.Count > 0) { graphDefines.AppendLine(KeywordUtil.GetKeywordPermutationSetConditional(activePermutationIndices)); graphDefines.AppendLine("#define REQUIRE_OPAQUE_TEXTURE"); graphDefines.AppendLine("#endif"); } } else { // Depth Texture if (graphRequirements.baseInstance.requirements.requiresDepthTexture) { graphDefines.AppendLine("#define REQUIRE_DEPTH_TEXTURE"); } // Opaque Texture if (graphRequirements.baseInstance.requirements.requiresCameraOpaqueTexture) { graphDefines.AppendLine("#define REQUIRE_OPAQUE_TEXTURE"); } } // Add to splice commands spliceCommands.Add("GraphDefines", graphDefines.ToCodeBlack()); } // -------------------------------------------------- // Main // Main include is expected to contain vert/frag definitions for the pass // This must be defined after all graph code using (var mainBuilder = new ShaderStringBuilder()) { mainBuilder.AppendLine($"#include \"{pass.varyingsInclude}\""); mainBuilder.AppendLine($"#include \"{pass.passInclude}\""); // Add to splice commands spliceCommands.Add("MainInclude", mainBuilder.ToCodeBlack()); } // -------------------------------------------------- // Debug // Debug output all active fields using (var debugBuilder = new ShaderStringBuilder()) { if (isDebug) { // Active fields debugBuilder.AppendLine("// ACTIVE FIELDS:"); foreach (string field in activeFields.baseInstance.fields) { debugBuilder.AppendLine("// " + field); } } if (debugBuilder.length == 0) { debugBuilder.AppendLine("// <None>"); } // Add to splice commands spliceCommands.Add("Debug", debugBuilder.ToCodeBlack()); } // -------------------------------------------------- // Finalize // Get Template string templateLocation = GetTemplatePath("PassMesh.template"); if (!File.Exists(templateLocation)) { return(false); } // Get Template preprocessor string templatePath = "Packages/com.unity.render-pipelines.universal/Editor/ShaderGraph/Templates"; var templatePreprocessor = new ShaderSpliceUtil.TemplatePreprocessor(activeFields, spliceCommands, isDebug, templatePath, sourceAssetDependencyPaths, assemblyName, resourceClassName); // Process Template templatePreprocessor.ProcessTemplateFile(templateLocation); result.AddShaderChunk(templatePreprocessor.GetShaderCode().ToString(), false); return(true); }