void AddNodeNoValidate(AbstractMaterialNode node)
{
if (node.groupGuid != Guid.Empty && !m_GroupNodes.ContainsKey(node.groupGuid))
{
throw new InvalidOperationException("Cannot add a node whose group doesn't exist.");
}
node.owner = this;
if (m_FreeNodeTempIds.Any())
{
var id = m_FreeNodeTempIds.Pop();
id.IncrementVersion();
node.tempId = id;
m_Nodes[id.index] = node;
}
else
{
var id = new Identifier(m_Nodes.Count);
node.tempId = id;
m_Nodes.Add(node);
}
m_NodeDictionary.Add(node.guid, node);
m_AddedNodes.Add(node);
m_GroupNodes[node.groupGuid].Add(node);
}
public void OnAfterDeserialize()
{
// have to deserialize 'globals' before nodes
m_Properties = SerializationHelper.Deserialize <AbstractShaderProperty>(m_SerializedProperties, GraphUtil.GetLegacyTypeRemapping());
var nodes = SerializationHelper.Deserialize <AbstractMaterialNode>(m_SerializableNodes, GraphUtil.GetLegacyTypeRemapping());
m_Nodes = new List <AbstractMaterialNode>(nodes.Count);
m_NodeDictionary = new Dictionary <Guid, AbstractMaterialNode>(nodes.Count);
foreach (var group in m_Groups)
{
m_GroupNodes.Add(group.guid, new List <AbstractMaterialNode>());
}
foreach (var node in nodes.OfType <AbstractMaterialNode>())
{
node.owner = this;
node.UpdateNodeAfterDeserialization();
node.tempId = new Identifier(m_Nodes.Count);
m_Nodes.Add(node);
m_NodeDictionary.Add(node.guid, node);
m_GroupNodes[node.groupGuid].Add(node);
}
m_SerializableNodes = null;
m_Edges = SerializationHelper.Deserialize <IEdge>(m_SerializableEdges, GraphUtil.GetLegacyTypeRemapping());
m_SerializableEdges = null;
foreach (var edge in m_Edges)
{
AddEdgeToNodeEdges(edge);
}
m_OutputNode = null;
}
public static GenerationResults GetShader(this AbstractMaterialGraph graph, AbstractMaterialNode node, GenerationMode mode, string name)
{
var results = new GenerationResults();
bool isUber = node == null;
var vertexInputs = new ShaderGenerator();
var vertexShader = new ShaderGenerator();
var surfaceDescriptionFunction = new ShaderGenerator();
var surfaceDescriptionStruct = new ShaderGenerator();
var functionBuilder = new ShaderStringBuilder();
var functionRegistry = new FunctionRegistry(functionBuilder);
var surfaceInputs = new ShaderGenerator();
surfaceInputs.AddShaderChunk("struct SurfaceInputs{", false);
surfaceInputs.Indent();
var activeNodeList = ListPool <INode> .Get();
if (isUber)
{
var unmarkedNodes = graph.GetNodes <INode>().Where(x => !(x is IMasterNode)).ToDictionary(x => x.guid);
while (unmarkedNodes.Any())
{
var unmarkedNode = unmarkedNodes.FirstOrDefault();
Visit(activeNodeList, unmarkedNodes, unmarkedNode.Value);
}
}
else
{
NodeUtils.DepthFirstCollectNodesFromNode(activeNodeList, node);
}
var requirements = ShaderGraphRequirements.FromNodes(activeNodeList);
GenerateApplicationVertexInputs(requirements, vertexInputs);
ShaderGenerator.GenerateSpaceTranslationSurfaceInputs(requirements.requiresNormal, InterpolatorType.Normal, surfaceInputs);
ShaderGenerator.GenerateSpaceTranslationSurfaceInputs(requirements.requiresTangent, InterpolatorType.Tangent, surfaceInputs);
ShaderGenerator.GenerateSpaceTranslationSurfaceInputs(requirements.requiresBitangent, InterpolatorType.BiTangent, surfaceInputs);
ShaderGenerator.GenerateSpaceTranslationSurfaceInputs(requirements.requiresViewDir, InterpolatorType.ViewDirection, surfaceInputs);
ShaderGenerator.GenerateSpaceTranslationSurfaceInputs(requirements.requiresPosition, InterpolatorType.Position, surfaceInputs);
if (requirements.requiresVertexColor)
{
surfaceInputs.AddShaderChunk(String.Format("float4 {0};", ShaderGeneratorNames.VertexColor), false);
}
if (requirements.requiresScreenPosition)
{
surfaceInputs.AddShaderChunk(String.Format("float4 {0};", ShaderGeneratorNames.ScreenPosition), false);
}
results.previewMode = PreviewMode.Preview3D;
if (!isUber)
{
foreach (var pNode in activeNodeList.OfType <AbstractMaterialNode>())
{
if (pNode.previewMode == PreviewMode.Preview3D)
{
results.previewMode = PreviewMode.Preview3D;
break;
}
}
}
foreach (var channel in requirements.requiresMeshUVs.Distinct())
{
surfaceInputs.AddShaderChunk(String.Format("half4 {0};", channel.GetUVName()), false);
}
surfaceInputs.Deindent();
surfaceInputs.AddShaderChunk("};", false);
vertexShader.AddShaderChunk("GraphVertexInput PopulateVertexData(GraphVertexInput v){", false);
vertexShader.Indent();
vertexShader.AddShaderChunk("return v;", false);
vertexShader.Deindent();
vertexShader.AddShaderChunk("}", false);
var slots = new List <MaterialSlot>();
foreach (var activeNode in isUber ? activeNodeList.Where(n => ((AbstractMaterialNode)n).hasPreview) : ((INode)node).ToEnumerable())
{
if (activeNode is IMasterNode)
{
slots.AddRange(activeNode.GetInputSlots <MaterialSlot>());
}
else
{
slots.AddRange(activeNode.GetOutputSlots <MaterialSlot>());
}
}
GenerateSurfaceDescriptionStruct(surfaceDescriptionStruct, slots, !isUber);
var shaderProperties = new PropertyCollector();
results.outputIdProperty = new Vector1ShaderProperty
{
displayName = "OutputId",
generatePropertyBlock = false,
value = -1
};
if (isUber)
{
shaderProperties.AddShaderProperty(results.outputIdProperty);
}
GenerateSurfaceDescription(
activeNodeList,
node,
graph,
surfaceDescriptionFunction,
functionRegistry,
shaderProperties,
requirements,
mode,
outputIdProperty: results.outputIdProperty);
var finalBuilder = new ShaderStringBuilder();
finalBuilder.AppendLine(@"Shader ""{0}""", name);
using (finalBuilder.BlockScope())
{
finalBuilder.AppendLine("Properties");
using (finalBuilder.BlockScope())
{
finalBuilder.AppendLines(shaderProperties.GetPropertiesBlock(0));
}
finalBuilder.AppendLine(@"HLSLINCLUDE");
finalBuilder.AppendLine("#define USE_LEGACY_UNITY_MATRIX_VARIABLES");
finalBuilder.AppendLine(@"#include ""CoreRP/ShaderLibrary/Common.hlsl""");
finalBuilder.AppendLine(@"#include ""CoreRP/ShaderLibrary/Packing.hlsl""");
finalBuilder.AppendLine(@"#include ""CoreRP/ShaderLibrary/Color.hlsl""");
finalBuilder.AppendLine(@"#include ""CoreRP/ShaderLibrary/UnityInstancing.hlsl""");
finalBuilder.AppendLine(@"#include ""CoreRP/ShaderLibrary/EntityLighting.hlsl""");
finalBuilder.AppendLine(@"#include ""ShaderGraphLibrary/ShaderVariables.hlsl""");
finalBuilder.AppendLine(@"#include ""ShaderGraphLibrary/ShaderVariablesFunctions.hlsl""");
finalBuilder.AppendLine(@"#include ""ShaderGraphLibrary/Functions.hlsl""");
finalBuilder.AppendLines(shaderProperties.GetPropertiesDeclaration(0));
finalBuilder.AppendLines(surfaceInputs.GetShaderString(0));
finalBuilder.Concat(functionBuilder);
finalBuilder.AppendLines(vertexInputs.GetShaderString(0));
finalBuilder.AppendLines(surfaceDescriptionStruct.GetShaderString(0));
finalBuilder.AppendLines(vertexShader.GetShaderString(0));
finalBuilder.AppendLines(surfaceDescriptionFunction.GetShaderString(0));
finalBuilder.AppendLine(@"ENDHLSL");
finalBuilder.AppendLines(ShaderGenerator.GetPreviewSubShader(node, requirements));
ListPool <INode> .Release(activeNodeList);
}
results.configuredTextures = shaderProperties.GetConfiguredTexutres();
ShaderSourceMap sourceMap;
results.shader = finalBuilder.ToString(out sourceMap);
results.sourceMap = sourceMap;
return(results);
}
public static GenerationResults GetPreviewShader(this AbstractMaterialGraph graph, AbstractMaterialNode node)
{
return(graph.GetShader(node, GenerationMode.Preview, String.Format("hidden/preview/{0}", node.GetVariableNameForNode())));
}
public static void GenerateSurfaceDescriptionFunction(
List <INode> activeNodeList,
AbstractMaterialNode masterNode,
AbstractMaterialGraph graph,
ShaderStringBuilder surfaceDescriptionFunction,
FunctionRegistry functionRegistry,
PropertyCollector shaderProperties,
ShaderGraphRequirements requirements,
GenerationMode mode,
string functionName = "PopulateSurfaceData",
string surfaceDescriptionName = "SurfaceDescription",
Vector1ShaderProperty outputIdProperty = null,
IEnumerable <MaterialSlot> slots = null,
string graphInputStructName = "SurfaceDescriptionInputs")
{
if (graph == null)
{
return;
}
GraphContext graphContext = new GraphContext(graphInputStructName);
graph.CollectShaderProperties(shaderProperties, mode);
surfaceDescriptionFunction.AppendLine(String.Format("{0} {1}(SurfaceDescriptionInputs IN)", surfaceDescriptionName, functionName), false);
using (surfaceDescriptionFunction.BlockScope())
{
ShaderGenerator sg = new ShaderGenerator();
surfaceDescriptionFunction.AppendLine("{0} surface = ({0})0;", surfaceDescriptionName);
foreach (var activeNode in activeNodeList.OfType <AbstractMaterialNode>())
{
if (activeNode is IGeneratesFunction)
{
functionRegistry.builder.currentNode = activeNode;
(activeNode as IGeneratesFunction).GenerateNodeFunction(functionRegistry, graphContext, mode);
}
if (activeNode is IGeneratesBodyCode)
{
(activeNode as IGeneratesBodyCode).GenerateNodeCode(sg, mode);
}
if (masterNode == null && activeNode.hasPreview)
{
var outputSlot = activeNode.GetOutputSlots <MaterialSlot>().FirstOrDefault();
if (outputSlot != null)
{
sg.AddShaderChunk(String.Format("if ({0} == {1}) {{ surface.PreviewOutput = {2}; return surface; }}", outputIdProperty.referenceName, activeNode.tempId.index, ShaderGenerator.AdaptNodeOutputForPreview(activeNode, outputSlot.id, activeNode.GetVariableNameForSlot(outputSlot.id))), false);
}
}
// In case of the subgraph output node, the preview is generated
// from the first input to the node.
if (activeNode is SubGraphOutputNode)
{
var inputSlot = activeNode.GetInputSlots <MaterialSlot>().FirstOrDefault();
if (inputSlot != null)
{
var foundEdges = graph.GetEdges(inputSlot.slotReference).ToArray();
string slotValue = foundEdges.Any() ? activeNode.GetSlotValue(inputSlot.id, mode) : inputSlot.GetDefaultValue(mode);
sg.AddShaderChunk(String.Format("if ({0} == {1}) {{ surface.PreviewOutput = {2}; return surface; }}", outputIdProperty.referenceName, activeNode.tempId.index, slotValue), false);
}
}
activeNode.CollectShaderProperties(shaderProperties, mode);
}
surfaceDescriptionFunction.AppendLines(sg.GetShaderString(0));
functionRegistry.builder.currentNode = null;
if (masterNode != null)
{
if (masterNode is IMasterNode)
{
var usedSlots = slots ?? masterNode.GetInputSlots <MaterialSlot>();
foreach (var input in usedSlots)
{
var foundEdges = graph.GetEdges(input.slotReference).ToArray();
if (foundEdges.Any())
{
surfaceDescriptionFunction.AppendLine("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(input.shaderOutputName), masterNode.GetSlotValue(input.id, mode));
}
else
{
surfaceDescriptionFunction.AppendLine("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(input.shaderOutputName), input.GetDefaultValue(mode));
}
}
}
else if (masterNode.hasPreview)
{
foreach (var slot in masterNode.GetOutputSlots <MaterialSlot>())
{
surfaceDescriptionFunction.AppendLine("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(slot.shaderOutputName), masterNode.GetSlotValue(slot.id, mode));
}
}
}
surfaceDescriptionFunction.AppendLine("return surface;");
}
}
internal void PasteGraph(CopyPasteGraph graphToPaste, List <AbstractMaterialNode> remappedNodes, List <IEdge> remappedEdges)
{
var groupGuidMap = new Dictionary <Guid, Guid>();
foreach (var group in graphToPaste.groups)
{
var position = group.position;
position.x += 30;
position.y += 30;
GroupData newGroup = new GroupData(group.title, position);
var oldGuid = group.guid;
var newGuid = newGroup.guid;
groupGuidMap[oldGuid] = newGuid;
AddGroup(newGroup);
m_PastedGroups.Add(newGroup);
}
var nodeGuidMap = new Dictionary <Guid, Guid>();
foreach (var node in graphToPaste.GetNodes <AbstractMaterialNode>())
{
AbstractMaterialNode pastedNode = node;
var oldGuid = node.guid;
var newGuid = node.RewriteGuid();
nodeGuidMap[oldGuid] = newGuid;
// Check if the property nodes need to be made into a concrete node.
if (node is PropertyNode)
{
PropertyNode propertyNode = (PropertyNode)node;
// If the property is not in the current graph, do check if the
// property can be made into a concrete node.
if (!m_Properties.Select(x => x.guid).Contains(propertyNode.propertyGuid))
{
// If the property is in the serialized paste graph, make the property node into a property node.
var pastedGraphMetaProperties = graphToPaste.metaProperties.Where(x => x.guid == propertyNode.propertyGuid);
if (pastedGraphMetaProperties.Any())
{
pastedNode = pastedGraphMetaProperties.FirstOrDefault().ToConcreteNode();
pastedNode.drawState = node.drawState;
nodeGuidMap[oldGuid] = pastedNode.guid;
}
}
}
AbstractMaterialNode abstractMaterialNode = (AbstractMaterialNode)node;
// Check if the node is inside a group
if (groupGuidMap.ContainsKey(abstractMaterialNode.groupGuid))
{
var absNode = pastedNode as AbstractMaterialNode;
absNode.groupGuid = groupGuidMap[abstractMaterialNode.groupGuid];
pastedNode = absNode;
}
var drawState = node.drawState;
var position = drawState.position;
position.x += 30;
position.y += 30;
drawState.position = position;
node.drawState = drawState;
remappedNodes.Add(pastedNode);
AddNode(pastedNode);
// add the node to the pasted node list
m_PastedNodes.Add(pastedNode);
}
// only connect edges within pasted elements, discard
// external edges.
foreach (var edge in graphToPaste.edges)
{
var outputSlot = edge.outputSlot;
var inputSlot = edge.inputSlot;
Guid remappedOutputNodeGuid;
Guid remappedInputNodeGuid;
if (nodeGuidMap.TryGetValue(outputSlot.nodeGuid, out remappedOutputNodeGuid) &&
nodeGuidMap.TryGetValue(inputSlot.nodeGuid, out remappedInputNodeGuid))
{
var outputSlotRef = new SlotReference(remappedOutputNodeGuid, outputSlot.slotId);
var inputSlotRef = new SlotReference(remappedInputNodeGuid, inputSlot.slotId);
remappedEdges.Add(Connect(outputSlotRef, inputSlotRef));
}
}
ValidateGraph();
}
public static void ValidateNode(AbstractMaterialNode node)
{
node.ValidateNode();
}
public ActiveFields GatherActiveFieldsFromNode(AbstractMaterialNode outputNode, PassDescriptor pass, List <(BlockFieldDescriptor descriptor, bool isDefaultValue)> activeBlocks, List <BlockFieldDescriptor> connectedBlocks, Target target)
public static string AdaptNodeOutputForPreview(AbstractMaterialNode node, int outputSlotId)
{
var rawOutput = node.GetVariableNameForSlot(outputSlotId);
return(AdaptNodeOutputForPreview(node, outputSlotId, rawOutput));
}
public static string AdaptNodeOutput(AbstractMaterialNode node, int outputSlotId, ConcreteSlotValueType convertToType)
{
var outputSlot = node.FindOutputSlot <MaterialSlot>(outputSlotId);
if (outputSlot == null)
{
return(kErrorString);
}
var convertFromType = outputSlot.concreteValueType;
var rawOutput = node.GetVariableNameForSlot(outputSlotId);
if (convertFromType == convertToType)
{
return(rawOutput);
}
switch (convertToType)
{
case ConcreteSlotValueType.Vector1:
return(string.Format("({0}).x", rawOutput));
case ConcreteSlotValueType.Vector2:
switch (convertFromType)
{
case ConcreteSlotValueType.Vector1:
return(string.Format("({0}.xx)", rawOutput));
case ConcreteSlotValueType.Vector3:
case ConcreteSlotValueType.Vector4:
return(string.Format("({0}.xy)", rawOutput));
default:
return(kErrorString);
}
case ConcreteSlotValueType.Vector3:
switch (convertFromType)
{
case ConcreteSlotValueType.Vector1:
return(string.Format("({0}.xxx)", rawOutput));
case ConcreteSlotValueType.Vector2:
return(string.Format("({0}3({1}, 0.0))", node.precision, rawOutput));
case ConcreteSlotValueType.Vector4:
return(string.Format("({0}.xyz)", rawOutput));
default:
return(kErrorString);
}
case ConcreteSlotValueType.Vector4:
switch (convertFromType)
{
case ConcreteSlotValueType.Vector1:
return(string.Format("({0}.xxxx)", rawOutput));
case ConcreteSlotValueType.Vector2:
return(string.Format("({0}4({1}, 0.0, 1.0))", node.precision, rawOutput));
case ConcreteSlotValueType.Vector3:
return(string.Format("({0}4({1}, 1.0))", node.precision, rawOutput));
default:
return(kErrorString);
}
case ConcreteSlotValueType.Matrix3:
return(rawOutput);
case ConcreteSlotValueType.Matrix2:
return(rawOutput);
default:
return(kErrorString);
}
}
public static GenerationResults GetShader(this GraphData graph, AbstractMaterialNode node, GenerationMode mode, string name)
{
// ----------------------------------------------------- //
// SETUP //
// ----------------------------------------------------- //
// -------------------------------------
// String builders
var finalShader = new ShaderStringBuilder();
var results = new GenerationResults();
var shaderProperties = new PropertyCollector();
var shaderKeywords = new KeywordCollector();
var shaderPropertyUniforms = new ShaderStringBuilder();
var shaderKeywordDeclarations = new ShaderStringBuilder();
var shaderKeywordPermutations = new ShaderStringBuilder(1);
var functionBuilder = new ShaderStringBuilder();
var functionRegistry = new FunctionRegistry(functionBuilder);
var vertexDescriptionFunction = new ShaderStringBuilder(0);
var surfaceDescriptionInputStruct = new ShaderStringBuilder(0);
var surfaceDescriptionStruct = new ShaderStringBuilder(0);
var surfaceDescriptionFunction = new ShaderStringBuilder(0);
var vertexInputs = new ShaderStringBuilder(0);
graph.CollectShaderKeywords(shaderKeywords, mode);
if (graph.GetKeywordPermutationCount() > ShaderGraphPreferences.variantLimit)
{
graph.AddValidationError(node.tempId, ShaderKeyword.kVariantLimitWarning, Rendering.ShaderCompilerMessageSeverity.Error);
results.configuredTextures = shaderProperties.GetConfiguredTexutres();
results.shader = string.Empty;
return(results);
}
// -------------------------------------
// Get Slot and Node lists
var activeNodeList = ListPool <AbstractMaterialNode> .Get();
NodeUtils.DepthFirstCollectNodesFromNode(activeNodeList, node);
var slots = new List <MaterialSlot>();
if (node is IMasterNode || node is SubGraphOutputNode)
{
slots.AddRange(node.GetInputSlots <MaterialSlot>());
}
else
{
var outputSlots = node.GetOutputSlots <MaterialSlot>().ToList();
if (outputSlots.Count > 0)
{
slots.Add(outputSlots[0]);
}
}
// -------------------------------------
// Get Requirements
var requirements = ShaderGraphRequirements.FromNodes(activeNodeList, ShaderStageCapability.Fragment);
// ----------------------------------------------------- //
// KEYWORDS //
// ----------------------------------------------------- //
// -------------------------------------
// Get keyword permutations
graph.CollectShaderKeywords(shaderKeywords, mode);
// Track permutation indicies for all nodes and requirements
List <int>[] keywordPermutationsPerNode = new List <int> [activeNodeList.Count];
// -------------------------------------
// Evaluate all permutations
for (int i = 0; i < shaderKeywords.permutations.Count; i++)
{
// Get active nodes for this permutation
var localNodes = ListPool <AbstractMaterialNode> .Get();
NodeUtils.DepthFirstCollectNodesFromNode(localNodes, node, keywordPermutation: shaderKeywords.permutations[i]);
// Track each pixel node in this permutation
foreach (AbstractMaterialNode pixelNode in localNodes)
{
int nodeIndex = activeNodeList.IndexOf(pixelNode);
if (keywordPermutationsPerNode[nodeIndex] == null)
{
keywordPermutationsPerNode[nodeIndex] = new List <int>();
}
keywordPermutationsPerNode[nodeIndex].Add(i);
}
// Get active requirements for this permutation
var localSurfaceRequirements = ShaderGraphRequirements.FromNodes(localNodes, ShaderStageCapability.Fragment, false);
var localPixelRequirements = ShaderGraphRequirements.FromNodes(localNodes, ShaderStageCapability.Fragment);
}
// ----------------------------------------------------- //
// START VERTEX DESCRIPTION //
// ----------------------------------------------------- //
// -------------------------------------
// Generate Vertex Description function
vertexDescriptionFunction.AppendLine("GraphVertexInput PopulateVertexData(GraphVertexInput v)");
using (vertexDescriptionFunction.BlockScope())
{
vertexDescriptionFunction.AppendLine("return v;");
}
// ----------------------------------------------------- //
// START SURFACE DESCRIPTION //
// ----------------------------------------------------- //
// -------------------------------------
// Generate Input structure for Surface Description function
// Surface Description Input requirements are needed to exclude intermediate translation spaces
GenerateSurfaceInputStruct(surfaceDescriptionInputStruct, requirements, "SurfaceDescriptionInputs");
results.previewMode = PreviewMode.Preview2D;
foreach (var pNode in activeNodeList)
{
if (pNode.previewMode == PreviewMode.Preview3D)
{
results.previewMode = PreviewMode.Preview3D;
break;
}
}
// -------------------------------------
// Generate Output structure for Surface Description function
GenerateSurfaceDescriptionStruct(surfaceDescriptionStruct, slots, useIdsInNames: !(node is IMasterNode));
// -------------------------------------
// Generate Surface Description function
GenerateSurfaceDescriptionFunction(
activeNodeList,
keywordPermutationsPerNode,
node,
graph,
surfaceDescriptionFunction,
functionRegistry,
shaderProperties,
shaderKeywords,
mode,
outputIdProperty: results.outputIdProperty);
// ----------------------------------------------------- //
// GENERATE VERTEX > PIXEL PIPELINE //
// ----------------------------------------------------- //
// -------------------------------------
// Keyword declarations
shaderKeywords.GetKeywordsDeclaration(shaderKeywordDeclarations, mode);
// -------------------------------------
// Property uniforms
shaderProperties.GetPropertiesDeclaration(shaderPropertyUniforms, mode, graph.concretePrecision);
// -------------------------------------
// Generate Input structure for Vertex shader
GenerateApplicationVertexInputs(requirements, vertexInputs);
// ----------------------------------------------------- //
// FINALIZE //
// ----------------------------------------------------- //
// -------------------------------------
// Build final shader
finalShader.AppendLine(@"Shader ""{0}""", name);
using (finalShader.BlockScope())
{
SubShaderGenerator.GeneratePropertiesBlock(finalShader, shaderProperties, shaderKeywords, mode);
finalShader.AppendNewLine();
finalShader.AppendLine(@"HLSLINCLUDE");
finalShader.AppendLine(@"#include ""Assets/Scripts/URP/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl""");
finalShader.AppendLine(@"#include ""Assets/Scripts/URP/com.unity.render-pipelines.core/ShaderLibrary/Packing.hlsl""");
finalShader.AppendLine(@"#include ""Assets/Scripts/URP/com.unity.render-pipelines.core/ShaderLibrary/NormalSurfaceGradient.hlsl""");
finalShader.AppendLine(@"#include ""Assets/Scripts/URP/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl""");
finalShader.AppendLine(@"#include ""Assets/Scripts/URP/com.unity.render-pipelines.core/ShaderLibrary/UnityInstancing.hlsl""");
finalShader.AppendLine(@"#include ""Assets/Scripts/URP/com.unity.render-pipelines.core/ShaderLibrary/EntityLighting.hlsl""");
finalShader.AppendLine(@"#include ""Assets/Scripts/URP/com.unity.shadergraph/ShaderGraphLibrary/ShaderVariables.hlsl""");
finalShader.AppendLine(@"#include ""Assets/Scripts/URP/com.unity.shadergraph/ShaderGraphLibrary/ShaderVariablesFunctions.hlsl""");
finalShader.AppendLine(@"#include ""Assets/Scripts/URP/com.unity.shadergraph/ShaderGraphLibrary/Functions.hlsl""");
finalShader.AppendLines(shaderKeywordDeclarations.ToString());
finalShader.AppendLine(@"#define SHADERGRAPH_PREVIEW 1");
finalShader.AppendNewLine();
finalShader.AppendLines(shaderKeywordPermutations.ToString());
finalShader.AppendLines(shaderPropertyUniforms.ToString());
finalShader.AppendNewLine();
finalShader.AppendLines(surfaceDescriptionInputStruct.ToString());
finalShader.AppendNewLine();
finalShader.Concat(functionBuilder);
finalShader.AppendNewLine();
finalShader.AppendLines(surfaceDescriptionStruct.ToString());
finalShader.AppendNewLine();
finalShader.AppendLines(surfaceDescriptionFunction.ToString());
finalShader.AppendNewLine();
finalShader.AppendLines(vertexInputs.ToString());
finalShader.AppendNewLine();
finalShader.AppendLines(vertexDescriptionFunction.ToString());
finalShader.AppendNewLine();
finalShader.AppendLine(@"ENDHLSL");
finalShader.AppendLines(ShaderGenerator.GetPreviewSubShader(node, requirements));
ListPool <AbstractMaterialNode> .Release(activeNodeList);
}
// -------------------------------------
// Finalize
results.configuredTextures = shaderProperties.GetConfiguredTexutres();
ShaderSourceMap sourceMap;
results.shader = finalShader.ToString(out sourceMap);
results.sourceMap = sourceMap;
return(results);
}
public static void SetupNode(AbstractMaterialNode node)
{
node.Setup();
}
public static string GetPreviewSubShader(AbstractMaterialNode node, ShaderGraphRequirements shaderGraphRequirements)
{
// Should never be called without a node
Debug.Assert(node != null);
var vertexOutputStruct = new ShaderStringBuilder(2);
var vertexShader = new ShaderStringBuilder(2);
var vertexShaderDescriptionInputs = new ShaderStringBuilder(2);
var vertexShaderOutputs = new ShaderStringBuilder(1);
var pixelShader = new ShaderStringBuilder(2);
var pixelShaderSurfaceInputs = new ShaderStringBuilder(2);
var pixelShaderSurfaceRemap = new ShaderStringBuilder(2);
ShaderGenerator.GenerateStandardTransforms(
0,
16,
vertexOutputStruct,
vertexShader,
vertexShaderDescriptionInputs,
vertexShaderOutputs,
pixelShader,
pixelShaderSurfaceInputs,
shaderGraphRequirements,
shaderGraphRequirements,
ShaderGraphRequirements.none,
ShaderGraphRequirements.none,
CoordinateSpace.World);
vertexShader.AppendLines(vertexShaderDescriptionInputs.ToString());
vertexShader.AppendLines(vertexShaderOutputs.ToString());
var outputSlot = node.GetOutputSlots <MaterialSlot>().FirstOrDefault();
// Sub Graph Output uses first input slot
if (node is SubGraphOutputNode)
{
outputSlot = node.GetInputSlots <MaterialSlot>().FirstOrDefault();
}
if (outputSlot != null)
{
var result = $"surf.{NodeUtils.GetHLSLSafeName(outputSlot.shaderOutputName)}_{outputSlot.id}";
pixelShaderSurfaceRemap.AppendLine("return all(isfinite({0})) ? {1} : {2};",
result, AdaptNodeOutputForPreview(node, outputSlot.id, result), nanOutput);
}
else
{
// No valid slots to display, so just show black.
// It's up to each node to error or warn as appropriate.
pixelShaderSurfaceRemap.AppendLine("return 0;");
}
// -------------------------------------
// Extra pixel shader work
var faceSign = new ShaderStringBuilder();
if (shaderGraphRequirements.requiresFaceSign)
{
faceSign.AppendLine(", half FaceSign : VFACE");
}
var res = subShaderTemplate.Replace("${Interpolators}", vertexOutputStruct.ToString());
res = res.Replace("${VertexShader}", vertexShader.ToString());
res = res.Replace("${FaceSign}", faceSign.ToString());
res = res.Replace("${LocalPixelShader}", pixelShader.ToString());
res = res.Replace("${SurfaceInputs}", pixelShaderSurfaceInputs.ToString());
res = res.Replace("${SurfaceOutputRemap}", pixelShaderSurfaceRemap.ToString());
return(res);
}
public static bool RequiresTime(this AbstractMaterialNode node)
{
return(node is IMayRequireTime mayRequireTime && mayRequireTime.RequiresTime());
}
public Generator(GraphData graphData, AbstractMaterialNode outputNode, GenerationMode mode, string name, AssetCollection assetCollection)
{
m_GraphData = graphData;
m_OutputNode = outputNode;
Generate(mode, name, assetCollection, GetTargetImplementations());
}
public Generator(GraphData graphData, AbstractMaterialNode outputNode, GenerationMode mode, string name, AssetCollection assetCollection, Target[] targets)
{
m_GraphData = graphData;
m_OutputNode = outputNode;
Generate(mode, name, assetCollection, targets);
}
public static string GetPreviewSubShader(AbstractMaterialNode node, ShaderGraphRequirements shaderGraphRequirements)
{
var vertexOutputStruct = new ShaderStringBuilder(2);
var vertexShader = new ShaderStringBuilder(2);
var vertexShaderDescriptionInputs = new ShaderStringBuilder(2);
var vertexShaderOutputs = new ShaderStringBuilder(1);
var pixelShader = new ShaderStringBuilder(2);
var pixelShaderSurfaceInputs = new ShaderStringBuilder(2);
var pixelShaderSurfaceRemap = new ShaderStringBuilder(2);
ShaderGenerator.GenerateStandardTransforms(
0,
16,
vertexOutputStruct,
vertexShader,
vertexShaderDescriptionInputs,
vertexShaderOutputs,
pixelShader,
pixelShaderSurfaceInputs,
shaderGraphRequirements,
shaderGraphRequirements,
ShaderGraphRequirements.none,
ShaderGraphRequirements.none,
CoordinateSpace.World);
vertexShader.AppendLines(vertexShaderDescriptionInputs.ToString());
vertexShader.AppendLines(vertexShaderOutputs.ToString());
if (node != null)
{
var outputSlot = node.GetOutputSlots <MaterialSlot>().FirstOrDefault();
if (outputSlot != null)
{
var result = string.Format("surf.{0}", node.GetVariableNameForSlot(outputSlot.id));
pixelShaderSurfaceRemap.AppendLine("return {0};", AdaptNodeOutputForPreview(node, outputSlot.id, result));
}
else
{
pixelShaderSurfaceRemap.AppendLine("return 0;");
}
}
else
{
pixelShaderSurfaceRemap.AppendLine("return all(isfinite(surf.PreviewOutput)) ? surf.PreviewOutput : float4(1.0f, 0.0f, 1.0f, 1.0f);");
}
// -------------------------------------
// Extra pixel shader work
var faceSign = new ShaderStringBuilder();
if (shaderGraphRequirements.requiresFaceSign)
{
faceSign.AppendLine(", half FaceSign : VFACE");
}
var res = subShaderTemplate.Replace("${Interpolators}", vertexOutputStruct.ToString());
res = res.Replace("${VertexShader}", vertexShader.ToString());
res = res.Replace("${FaceSign}", faceSign.ToString());
res = res.Replace("${LocalPixelShader}", pixelShader.ToString());
res = res.Replace("${SurfaceInputs}", pixelShaderSurfaceInputs.ToString());
res = res.Replace("${SurfaceOutputRemap}", pixelShaderSurfaceRemap.ToString());
return(res);
}
public override void ValidateNode()
{
var isInError = false;
var errorMessage = k_validationErrorMessage;
var dynamicInputSlotsToCompare = DictionaryPool <DynamicVectorMaterialSlot, ConcreteSlotValueType> .Get();
var skippedDynamicSlots = ListPool <DynamicVectorMaterialSlot> .Get();
var dynamicMatrixInputSlotsToCompare = DictionaryPool <DynamicMatrixMaterialSlot, ConcreteSlotValueType> .Get();
var skippedDynamicMatrixSlots = ListPool <DynamicMatrixMaterialSlot> .Get();
// iterate the input slots
s_TempSlots.Clear();
GetInputSlots(s_TempSlots);
foreach (var inputSlot in s_TempSlots)
{
inputSlot.hasError = false;
// if there is a connection
var edges = owner.GetEdges(inputSlot.slotReference).ToList();
if (!edges.Any())
{
if (inputSlot is DynamicVectorMaterialSlot)
{
skippedDynamicSlots.Add(inputSlot as DynamicVectorMaterialSlot);
}
if (inputSlot is DynamicMatrixMaterialSlot)
{
skippedDynamicMatrixSlots.Add(inputSlot as DynamicMatrixMaterialSlot);
}
continue;
}
// get the output details
var outputSlotRef = edges[0].outputSlot;
var outputNode = owner.GetNodeFromGuid(outputSlotRef.nodeGuid);
if (outputNode == null)
{
continue;
}
var outputSlot = outputNode.FindOutputSlot <MaterialSlot>(outputSlotRef.slotId);
if (outputSlot == null)
{
continue;
}
if (outputSlot.hasError)
{
inputSlot.hasError = true;
continue;
}
var outputConcreteType = outputSlot.concreteValueType;
// dynamic input... depends on output from other node.
// we need to compare ALL dynamic inputs to make sure they
// are compatable.
if (inputSlot is DynamicVectorMaterialSlot)
{
dynamicInputSlotsToCompare.Add((DynamicVectorMaterialSlot)inputSlot, outputConcreteType);
continue;
}
else if (inputSlot is DynamicMatrixMaterialSlot)
{
dynamicMatrixInputSlotsToCompare.Add((DynamicMatrixMaterialSlot)inputSlot, outputConcreteType);
continue;
}
// if we have a standard connection... just check the types work!
if (!AbstractMaterialNode.ImplicitConversionExists(outputConcreteType, inputSlot.concreteValueType))
{
inputSlot.hasError = true;
}
}
// and now dynamic matrices
var dynamicMatrixType = ConvertDynamicMatrixInputTypeToConcrete(dynamicMatrixInputSlotsToCompare.Values);
foreach (var dynamicKvP in dynamicMatrixInputSlotsToCompare)
{
dynamicKvP.Key.SetConcreteType(dynamicMatrixType);
}
foreach (var skippedSlot in skippedDynamicMatrixSlots)
{
skippedSlot.SetConcreteType(dynamicMatrixType);
}
// we can now figure out the dynamic slotType
// from here set all the
var dynamicType = SlotValueHelper.ConvertMatrixToVectorType(dynamicMatrixType);
foreach (var dynamicKvP in dynamicInputSlotsToCompare)
{
dynamicKvP.Key.SetConcreteType(dynamicType);
}
foreach (var skippedSlot in skippedDynamicSlots)
{
skippedSlot.SetConcreteType(dynamicType);
}
s_TempSlots.Clear();
GetInputSlots(s_TempSlots);
var inputError = s_TempSlots.Any(x => x.hasError);
// configure the output slots now
// their slotType will either be the default output slotType
// or the above dynanic slotType for dynamic nodes
// or error if there is an input error
s_TempSlots.Clear();
GetOutputSlots(s_TempSlots);
foreach (var outputSlot in s_TempSlots)
{
outputSlot.hasError = false;
if (inputError)
{
outputSlot.hasError = true;
continue;
}
if (outputSlot is DynamicVectorMaterialSlot)
{
(outputSlot as DynamicVectorMaterialSlot).SetConcreteType(dynamicType);
continue;
}
else if (outputSlot is DynamicMatrixMaterialSlot)
{
(outputSlot as DynamicMatrixMaterialSlot).SetConcreteType(dynamicMatrixType);
continue;
}
}
isInError |= inputError;
s_TempSlots.Clear();
GetOutputSlots(s_TempSlots);
isInError |= s_TempSlots.Any(x => x.hasError);
isInError |= CalculateNodeHasError(ref errorMessage);
hasError = isInError;
if (isInError)
{
((GraphData)owner).AddValidationError(tempId, errorMessage);
}
else
{
++version;
}
ListPool <DynamicVectorMaterialSlot> .Release(skippedDynamicSlots);
DictionaryPool <DynamicVectorMaterialSlot, ConcreteSlotValueType> .Release(dynamicInputSlotsToCompare);
ListPool <DynamicMatrixMaterialSlot> .Release(skippedDynamicMatrixSlots);
DictionaryPool <DynamicMatrixMaterialSlot, ConcreteSlotValueType> .Release(dynamicMatrixInputSlotsToCompare);
}
void AddNode(AbstractMaterialNode node)
{
m_Nodes.Add(node);
}
static void Visit(List <AbstractMaterialNode> outputList, Dictionary <Guid, AbstractMaterialNode> unmarkedNodes, AbstractMaterialNode node)
{
if (!unmarkedNodes.ContainsKey(node.guid))
{
return;
}
foreach (var slot in node.GetInputSlots <ISlot>())
{
foreach (var edge in node.owner.GetEdges(slot.slotReference))
{
var inputNode = node.owner.GetNodeFromGuid(edge.outputSlot.nodeGuid);
Visit(outputList, unmarkedNodes, inputNode);
}
}
unmarkedNodes.Remove(node.guid);
outputList.Add(node);
}
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 = "Assets/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);
}
static void GetActiveFieldsAndPermutationsForNodes(AbstractMaterialNode masterNode, ShaderPass pass,
KeywordCollector keywordCollector, List <AbstractMaterialNode> vertexNodes, List <AbstractMaterialNode> pixelNodes,
List <int>[] vertexNodePermutations, List <int>[] pixelNodePermutations,
ActiveFields activeFields, out ShaderGraphRequirementsPerKeyword graphRequirements)
{
// Initialize requirements
ShaderGraphRequirementsPerKeyword pixelRequirements = new ShaderGraphRequirementsPerKeyword();
ShaderGraphRequirementsPerKeyword vertexRequirements = new ShaderGraphRequirementsPerKeyword();
graphRequirements = new ShaderGraphRequirementsPerKeyword();
// Evaluate all Keyword permutations
if (keywordCollector.permutations.Count > 0)
{
for (int i = 0; i < keywordCollector.permutations.Count; i++)
{
// Get active nodes for this permutation
var localVertexNodes = Graphing.ListPool <AbstractMaterialNode> .Get();
var localPixelNodes = Graphing.ListPool <AbstractMaterialNode> .Get();
NodeUtils.DepthFirstCollectNodesFromNode(localVertexNodes, masterNode, NodeUtils.IncludeSelf.Include, pass.vertexPorts, keywordCollector.permutations[i]);
NodeUtils.DepthFirstCollectNodesFromNode(localPixelNodes, masterNode, NodeUtils.IncludeSelf.Include, pass.pixelPorts, keywordCollector.permutations[i]);
// Track each vertex node in this permutation
foreach (AbstractMaterialNode vertexNode in localVertexNodes)
{
int nodeIndex = vertexNodes.IndexOf(vertexNode);
if (vertexNodePermutations[nodeIndex] == null)
{
vertexNodePermutations[nodeIndex] = new List <int>();
}
vertexNodePermutations[nodeIndex].Add(i);
}
// Track each pixel node in this permutation
foreach (AbstractMaterialNode pixelNode in localPixelNodes)
{
int nodeIndex = pixelNodes.IndexOf(pixelNode);
if (pixelNodePermutations[nodeIndex] == null)
{
pixelNodePermutations[nodeIndex] = new List <int>();
}
pixelNodePermutations[nodeIndex].Add(i);
}
// Get requirements for this permutation
vertexRequirements[i].SetRequirements(ShaderGraphRequirements.FromNodes(localVertexNodes, ShaderStageCapability.Vertex, false));
pixelRequirements[i].SetRequirements(ShaderGraphRequirements.FromNodes(localPixelNodes, ShaderStageCapability.Fragment, false));
// Add active fields
AddActiveFieldsFromGraphRequirements(activeFields[i], vertexRequirements[i].requirements, "VertexDescriptionInputs");
AddActiveFieldsFromGraphRequirements(activeFields[i], pixelRequirements[i].requirements, "SurfaceDescriptionInputs");
}
}
// No Keywords
else
{
// Get requirements
vertexRequirements.baseInstance.SetRequirements(ShaderGraphRequirements.FromNodes(vertexNodes, ShaderStageCapability.Vertex, false));
pixelRequirements.baseInstance.SetRequirements(ShaderGraphRequirements.FromNodes(pixelNodes, ShaderStageCapability.Fragment, false));
// Add active fields
AddActiveFieldsFromGraphRequirements(activeFields.baseInstance, vertexRequirements.baseInstance.requirements, "VertexDescriptionInputs");
AddActiveFieldsFromGraphRequirements(activeFields.baseInstance, pixelRequirements.baseInstance.requirements, "SurfaceDescriptionInputs");
}
// Build graph requirements
graphRequirements.UnionWith(pixelRequirements);
graphRequirements.UnionWith(vertexRequirements);
}
internal static void GenerateSurfaceDescription(
List <INode> activeNodeList,
AbstractMaterialNode masterNode,
AbstractMaterialGraph graph,
ShaderGenerator surfaceDescriptionFunction,
FunctionRegistry functionRegistry,
PropertyCollector shaderProperties,
ShaderGraphRequirements requirements,
GenerationMode mode,
string functionName = "PopulateSurfaceData",
string surfaceDescriptionName = "SurfaceDescription",
Vector1ShaderProperty outputIdProperty = null,
IEnumerable <MaterialSlot> slots = null)
{
if (graph == null)
{
return;
}
surfaceDescriptionFunction.AddShaderChunk(String.Format("{0} {1}(SurfaceInputs IN) {{", surfaceDescriptionName, functionName), false);
surfaceDescriptionFunction.Indent();
surfaceDescriptionFunction.AddShaderChunk(String.Format("{0} surface = ({0})0;", surfaceDescriptionName), false);
graph.CollectShaderProperties(shaderProperties, mode);
foreach (var activeNode in activeNodeList.OfType <AbstractMaterialNode>())
{
if (activeNode is IGeneratesFunction)
{
functionRegistry.builder.currentNode = activeNode;
(activeNode as IGeneratesFunction).GenerateNodeFunction(functionRegistry, mode);
}
if (activeNode is IGeneratesBodyCode)
{
(activeNode as IGeneratesBodyCode).GenerateNodeCode(surfaceDescriptionFunction, mode);
}
if (masterNode == null && activeNode.hasPreview)
{
var outputSlot = activeNode.GetOutputSlots <MaterialSlot>().FirstOrDefault();
if (outputSlot != null)
{
surfaceDescriptionFunction.AddShaderChunk(String.Format("if ({0} == {1}) {{ surface.PreviewOutput = {2}; return surface; }}", outputIdProperty.referenceName, activeNode.tempId.index, ShaderGenerator.AdaptNodeOutputForPreview(activeNode, outputSlot.id, activeNode.GetVariableNameForSlot(outputSlot.id))), false);
}
}
activeNode.CollectShaderProperties(shaderProperties, mode);
}
functionRegistry.builder.currentNode = null;
if (masterNode != null)
{
if (masterNode is IMasterNode)
{
var usedSlots = slots ?? masterNode.GetInputSlots <MaterialSlot>();
foreach (var input in usedSlots)
{
var foundEdges = graph.GetEdges(input.slotReference).ToArray();
if (foundEdges.Any())
{
surfaceDescriptionFunction.AddShaderChunk(string.Format("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(input.shaderOutputName), masterNode.GetSlotValue(input.id, mode)), true);
}
else
{
surfaceDescriptionFunction.AddShaderChunk(string.Format("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(input.shaderOutputName), input.GetDefaultValue(mode)), true);
}
}
}
else if (masterNode.hasPreview)
{
foreach (var slot in masterNode.GetOutputSlots <MaterialSlot>())
{
surfaceDescriptionFunction.AddShaderChunk(string.Format("surface.{0} = {1};", NodeUtils.GetHLSLSafeName(slot.shaderOutputName), masterNode.GetSlotValue(slot.id, mode)), true);
}
}
}
surfaceDescriptionFunction.AddShaderChunk("return surface;", false);
surfaceDescriptionFunction.Deindent();
surfaceDescriptionFunction.AddShaderChunk("}", false);
}
public void ClearErrorsForNode(AbstractMaterialNode node)
{
messageManager?.ClearNodesFromProvider(this, node.ToEnumerable());
}
public static void ConcretizeNode(AbstractMaterialNode node)
{
node.Concretize();
}
