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859 lines
39 KiB
859 lines
39 KiB
// Amplify Shader Editor - Visual Shader Editing Tool
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// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
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namespace AmplifyShaderEditor
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{
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public static class GeneratorUtils
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{
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public const string ObjectScaleStr = "ase_objectScale";
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public const string ScreenDepthStr = "ase_screenDepth";
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public const string ViewPositionStr = "ase_viewPos";
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public const string WorldViewDirectionStr = "ase_worldViewDir";
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public const string TangentViewDirectionStr = "ase_tanViewDir";
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public const string NormalizedViewDirStr = "ase_normViewDir";
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public const string ClipPositionStr = "ase_clipPos";
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public const string VertexPosition3Str = "ase_vertex3Pos";
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public const string VertexPosition4Str = "ase_vertex4Pos";
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public const string VertexNormalStr = "ase_vertexNormal";
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public const string VertexTangentStr = "ase_vertexTangent";
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public const string VertexTangentSignStr = "ase_vertexTangentSign";
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public const string VertexBitangentStr = "ase_vertexBitangent";
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public const string ScreenPositionStr = "ase_screenPos";
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public const string NormalizedScreenPosFormat = "float4 {0} = {1} / {1}.w;";
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public const string ScreenPositionNormalizedStr = "ase_screenPosNorm";
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public const string GrabScreenPositionStr = "ase_grabScreenPos";
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public const string GrabScreenPositionNormalizedStr = "ase_grabScreenPosNorm";
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public const string WorldPositionStr = "ase_worldPos";
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public const string RelativeWorldPositionStr = "ase_relWorldPos";
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public const string WorldLightDirStr = "ase_worldlightDir";
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public const string ObjectLightDirStr = "ase_objectlightDir";
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public const string WorldNormalStr = "ase_worldNormal";
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public const string NormalizedWorldNormalStr = "ase_normWorldNormal";
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public const string WorldReflectionStr = "ase_worldReflection";
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public const string WorldTangentStr = "ase_worldTangent";
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public const string WorldBitangentStr = "ase_worldBitangent";
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public const string WorldToTangentStr = "ase_worldToTangent";
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public const string ObjectToTangentStr = "ase_objectToTangent";
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public const string TangentToWorldPreciseStr = "ase_tangentToWorldPrecise";
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public const string TangentToWorldFastStr = "ase_tangentToWorldFast";
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public const string TangentToObjectStr = "ase_tangentToObject";
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public const string TangentToObjectFastStr = "ase_tangentToObjectFast";
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private const string Float3Format = "float3 {0} = {1};";
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private const string Float4Format = "float4 {0} = {1};";
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private const string GrabFunctionHeader = "inline float4 ASE_ComputeGrabScreenPos( float4 pos )";
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private const string GrabFunctionCall = "ASE_ComputeGrabScreenPos( {0} )";
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private static readonly string[] GrabFunctionBody = {
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"#if UNITY_UV_STARTS_AT_TOP",
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"float scale = -1.0;",
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"#else",
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"float scale = 1.0;",
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"#endif",
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"float4 o = pos;",
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"o.y = pos.w * 0.5f;",
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"o.y = ( pos.y - o.y ) * _ProjectionParams.x * scale + o.y;",
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"return o;"
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};
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// OBJECT SCALE
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static public string GenerateObjectScale( ref MasterNodeDataCollector dataCollector, int uniqueId )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GenerateObjectScale( ref dataCollector, uniqueId );
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//string value= "1/float3( length( unity_WorldToObject[ 0 ].xyz ), length( unity_WorldToObject[ 1 ].xyz ), length( unity_WorldToObject[ 2 ].xyz ) );";
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string value = "float3( length( unity_ObjectToWorld[ 0 ].xyz ), length( unity_ObjectToWorld[ 1 ].xyz ), length( unity_ObjectToWorld[ 2 ].xyz ) )";
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dataCollector.AddLocalVariable( uniqueId, PrecisionType.Float, WirePortDataType.FLOAT3, ObjectScaleStr, value );
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return ObjectScaleStr;
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}
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// WORLD POSITION
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static public string GenerateWorldPosition( ref MasterNodeDataCollector dataCollector, int uniqueId )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GetWorldPos();
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dataCollector.AddToInput( -1, SurfaceInputs.WORLD_POS );
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string result = Constants.InputVarStr + ".worldPos";
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if( dataCollector.PortCategory == MasterNodePortCategory.Vertex || dataCollector.PortCategory == MasterNodePortCategory.Tessellation )
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result = "mul( unity_ObjectToWorld, " + Constants.VertexShaderInputStr + ".vertex )";
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, string.Format( Float3Format, WorldPositionStr, result ) );
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return WorldPositionStr;
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}
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// WORLD REFLECTION
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static public string GenerateWorldReflection( ref MasterNodeDataCollector dataCollector, int uniqueId, bool normalize = false )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GetWorldReflection( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision, true, MasterNodePortCategory.Fragment, normalize );
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string precisionType = UIUtils.PrecisionWirePortToCgType( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision, WirePortDataType.FLOAT3 );
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string result = string.Empty;
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if( !dataCollector.DirtyNormal )
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result = Constants.InputVarStr + ".worldRefl";
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else
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result = "WorldReflectionVector( " + Constants.InputVarStr + ", " + precisionType + "( 0, 0, 1 ) )";
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if( dataCollector.PortCategory == MasterNodePortCategory.Vertex || dataCollector.PortCategory == MasterNodePortCategory.Tessellation )
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result = "UnityObjectToWorldNormal( " + Constants.VertexShaderInputStr + ".normal )";
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if( normalize )
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{
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result = string.Format( "normalize( {0} )", result );
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}
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, string.Concat( precisionType, " ", WorldReflectionStr, " = ", result, ";" ) );
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return WorldReflectionStr;
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}
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// WORLD NORMAL
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static public string GenerateWorldNormal( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precisionType, string normal, string outputId )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GetWorldNormal( uniqueId, precisionType, normal, outputId );
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string tanToWorld = GenerateTangentToWorldMatrixFast( ref dataCollector, uniqueId, precisionType );
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return string.Format( "mul({0},{1})", tanToWorld, normal );
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}
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static public string GenerateWorldNormal( ref MasterNodeDataCollector dataCollector, int uniqueId, bool normalize = false )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GetWorldNormal( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision, true, MasterNodePortCategory.Fragment, normalize );
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string precisionType = UIUtils.PrecisionWirePortToCgType( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision, WirePortDataType.FLOAT3 );
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string result = string.Empty;
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if( !dataCollector.DirtyNormal )
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result = Constants.InputVarStr + ".worldNormal";
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else
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result = "WorldNormalVector( " + Constants.InputVarStr + ", " + precisionType + "( 0, 0, 1 ) )";
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if( dataCollector.PortCategory == MasterNodePortCategory.Vertex || dataCollector.PortCategory == MasterNodePortCategory.Tessellation )
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result = "UnityObjectToWorldNormal( " + Constants.VertexShaderInputStr + ".normal )";
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, string.Concat( precisionType, " ", WorldNormalStr, " = ", result, ";" ) );
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if( normalize )
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{
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, string.Concat( precisionType, " ", NormalizedWorldNormalStr, " = normalize( ", WorldNormalStr, " );" ) );
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return NormalizedWorldNormalStr;
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}
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return WorldNormalStr;
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}
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// WORLD TANGENT
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static public string GenerateWorldTangent( ref MasterNodeDataCollector dataCollector, int uniqueId )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GetWorldTangent( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision );
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string precisionType = UIUtils.PrecisionWirePortToCgType( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision, WirePortDataType.FLOAT3 );
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string result = "WorldNormalVector( " + Constants.InputVarStr + ", " + precisionType + "( 1, 0, 0 ) )";
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if( dataCollector.PortCategory == MasterNodePortCategory.Vertex || dataCollector.PortCategory == MasterNodePortCategory.Tessellation )
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result = "UnityObjectToWorldDir( " + Constants.VertexShaderInputStr + ".tangent.xyz )";
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, string.Concat( precisionType, " ", WorldTangentStr, " = ", result, ";" ) );
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return WorldTangentStr;
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}
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// WORLD BITANGENT
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static public string GenerateWorldBitangent( ref MasterNodeDataCollector dataCollector, int uniqueId )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GetWorldBinormal( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision );
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string precisionType = UIUtils.PrecisionWirePortToCgType( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision, WirePortDataType.FLOAT3 );
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string result = "WorldNormalVector( " + Constants.InputVarStr + ", " + precisionType + "( 0, 1, 0 ) )";
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if( dataCollector.PortCategory == MasterNodePortCategory.Vertex || dataCollector.PortCategory == MasterNodePortCategory.Tessellation )
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{
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string worldNormal = GenerateWorldNormal( ref dataCollector, uniqueId );
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string worldTangent = GenerateWorldTangent( ref dataCollector, uniqueId );
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dataCollector.AddToVertexLocalVariables( uniqueId, string.Format( "half tangentSign = {0}.tangent.w * unity_WorldTransformParams.w;", Constants.VertexShaderInputStr ) );
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result = "cross( " + worldNormal + ", " + worldTangent + " ) * tangentSign";
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}
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, string.Concat( precisionType, " ", WorldBitangentStr, " = ", result, ";" ) );
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return WorldBitangentStr;
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}
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// OBJECT TO TANGENT MATRIX
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static public string GenerateObjectToTangentMatrix( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
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{
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string normal = GenerateVertexNormal( ref dataCollector, uniqueId, precision );
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string tangent = GenerateVertexTangent( ref dataCollector, uniqueId, precision, WirePortDataType.FLOAT3 );
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string bitangen = GenerateVertexBitangent( ref dataCollector, uniqueId, precision );
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dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3x3, ObjectToTangentStr, "float3x3( " + tangent + ", " + bitangen + ", " + normal + " )" );
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return ObjectToTangentStr;
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}
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// TANGENT TO OBJECT
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//static public string GenerateTangentToObjectMatrixFast( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
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//{
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// string normal = GenerateVertexNormal( ref dataCollector, uniqueId, precision );
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// string tangent = GenerateVertexTangent( ref dataCollector, uniqueId, precision );
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// string bitangent = GenerateVertexBitangent( ref dataCollector, uniqueId, precision );
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// string result = string.Format( "float3x3({0}.x,{1}.x,{2}.x,{0}.y,{1}.y,{2}.y,{0}.z,{1}.z,{2}.z)",tangent,bitangent,normal );
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// dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3x3, TangentToObjectFastStr, result );
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// return TangentToObjectFastStr;
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//}
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//static public string GenerateTangentToObjectMatrixPrecise( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
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//{
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// string objectToTangent = GenerateObjectToTangentMatrix( ref dataCollector, uniqueId, precision );
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// Add3x3InverseFunction( ref dataCollector, UIUtils.PrecisionWirePortToCgType( precision, WirePortDataType.FLOAT ) );
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// dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3x3, TangentToObjectStr, string.Format( Inverse3x3Header, objectToTangent ) );
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// return TangentToObjectStr;
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//}
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// WORLD TO TANGENT MATRIX
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static public string GenerateWorldToTangentMatrix( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GetWorldToTangentMatrix( precision );
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if( dataCollector.IsFragmentCategory )
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{
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dataCollector.ForceNormal = true;
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dataCollector.AddToInput( -1, SurfaceInputs.WORLD_NORMAL, precision );
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dataCollector.AddToInput( -1, SurfaceInputs.INTERNALDATA, addSemiColon: false );
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}
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string worldNormal = GenerateWorldNormal( ref dataCollector, uniqueId );
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string worldTangent = GenerateWorldTangent( ref dataCollector, uniqueId );
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string worldBitangent = GenerateWorldBitangent( ref dataCollector, uniqueId );
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dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3x3, WorldToTangentStr, "float3x3( " + worldTangent + ", " + worldBitangent + ", " + worldNormal + " )" );
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return WorldToTangentStr;
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}
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// TANGENT TO WORLD
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static public string GenerateTangentToWorldMatrixFast( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GetTangentToWorldMatrixFast( precision );
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if( dataCollector.IsFragmentCategory )
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{
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dataCollector.ForceNormal = true;
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dataCollector.AddToInput( -1, SurfaceInputs.WORLD_NORMAL, precision );
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dataCollector.AddToInput( -1, SurfaceInputs.INTERNALDATA, addSemiColon: false );
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}
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string worldNormal = GenerateWorldNormal( ref dataCollector, uniqueId );
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string worldTangent = GenerateWorldTangent( ref dataCollector, uniqueId );
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string worldBitangent = GenerateWorldBitangent( ref dataCollector, uniqueId );
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string result = string.Format( "float3x3({0}.x,{1}.x,{2}.x,{0}.y,{1}.y,{2}.y,{0}.z,{1}.z,{2}.z)", worldTangent, worldBitangent, worldNormal );
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dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3x3, TangentToWorldFastStr, result );
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return TangentToWorldFastStr;
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}
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static public string GenerateTangentToWorldMatrixPrecise( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
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{
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if( dataCollector.IsTemplate )
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return dataCollector.TemplateDataCollectorInstance.GetTangentToWorldMatrixPrecise( precision );
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if( dataCollector.IsFragmentCategory )
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{
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dataCollector.ForceNormal = true;
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dataCollector.AddToInput( -1, SurfaceInputs.WORLD_NORMAL, precision );
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dataCollector.AddToInput( -1, SurfaceInputs.INTERNALDATA, addSemiColon: false );
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}
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string worldToTangent = GenerateWorldToTangentMatrix( ref dataCollector, uniqueId, precision );
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Add3x3InverseFunction( ref dataCollector, UIUtils.PrecisionWirePortToCgType( precision, WirePortDataType.FLOAT ) );
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dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3x3, TangentToWorldPreciseStr, string.Format( Inverse3x3Header, worldToTangent ) );
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return TangentToWorldPreciseStr;
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}
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// AUTOMATIC UVS
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static public string GenerateAutoUVs( ref MasterNodeDataCollector dataCollector, int uniqueId, int index, string propertyName = null, WirePortDataType size = WirePortDataType.FLOAT2, string scale = null, string offset = null, string outputId = null )
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{
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string result = string.Empty;
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string varName = string.Empty;
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if( !dataCollector.IsTemplate && index > 3 )
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{
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string texCoordName = TemplateHelperFunctions.BaseInterpolatorName + index;
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if( dataCollector.IsFragmentCategory )
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{
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GenerateValueInVertex( ref dataCollector,uniqueId, size,PrecisionType.Float, Constants.VertexShaderInputStr + "." + texCoordName, texCoordName, true );
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result = Constants.InputVarStr + "." + texCoordName;
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}
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else
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{
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result = Constants.VertexShaderInputStr + "." + texCoordName;
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}
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if( !string.IsNullOrEmpty( propertyName ) )
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{
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dataCollector.AddToUniforms( uniqueId, "uniform float4 " + propertyName + "_ST;" );
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if( size > WirePortDataType.FLOAT2 )
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{
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dataCollector.UsingHigherSizeTexcoords = true;
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, PrecisionType.Float, size, "uv" + propertyName, result );
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, "uv" + propertyName + ".xy = " + result + ".xy * " + propertyName + "_ST.xy + " + propertyName + "_ST.zw;" );
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}
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else
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{
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, PrecisionType.Float, size, "uv" + propertyName, result + " * " + propertyName + "_ST.xy + " + propertyName + "_ST.zw" );
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}
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result = "uv" + propertyName;
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}
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return result;
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}
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string indexStr = index > 0 ? ( index + 1 ).ToString() : "";
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if( dataCollector.PortCategory == MasterNodePortCategory.Fragment || dataCollector.PortCategory == MasterNodePortCategory.Debug )
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{
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string sizeDif = string.Empty;
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if( size == WirePortDataType.FLOAT3 )
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sizeDif = "3";
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else if( size == WirePortDataType.FLOAT4 )
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sizeDif = "4";
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string dummyPropUV = "_tex" + sizeDif + "coord" + indexStr;
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string dummyUV = "uv" + indexStr + dummyPropUV;
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dataCollector.AddToProperties( uniqueId, "[HideInInspector] " + dummyPropUV + "( \"\", 2D ) = \"white\" {}", 100 );
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dataCollector.AddToInput( uniqueId, dummyUV, size );
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result = Constants.InputVarStr + "." + dummyUV;
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}
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else
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{
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result = Constants.VertexShaderInputStr + ".texcoord";
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if( index > 0 )
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{
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result += index.ToString();
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}
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switch( size )
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{
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default:
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case WirePortDataType.FLOAT2:
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{
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result += ".xy";
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}
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break;
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case WirePortDataType.FLOAT3:
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{
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result += ".xyz";
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}
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break;
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case WirePortDataType.FLOAT4: break;
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}
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}
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varName = "uv" + indexStr + "_TexCoord" + outputId;
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if( !string.IsNullOrEmpty( propertyName ) )
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{
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dataCollector.AddToUniforms( uniqueId, "uniform float4 " + propertyName + "_ST;" );
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if( size > WirePortDataType.FLOAT2 )
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{
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dataCollector.UsingHigherSizeTexcoords = true;
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, PrecisionType.Float, size, "uv" + propertyName, result );
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, "uv" + propertyName + ".xy = " + result + ".xy * " + propertyName + "_ST.xy + " + propertyName + "_ST.zw;" );
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}
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else
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{
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, PrecisionType.Float, size, "uv" + propertyName, result + " * " + propertyName + "_ST.xy + " + propertyName + "_ST.zw" );
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}
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result = "uv" + propertyName;
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}
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else if( !string.IsNullOrEmpty( scale ) || !string.IsNullOrEmpty( offset ) )
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{
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if( size > WirePortDataType.FLOAT2 )
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{
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dataCollector.UsingHigherSizeTexcoords = true;
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, PrecisionType.Float, size, varName, result );
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, varName + ".xy = " + result + ".xy" + ( string.IsNullOrEmpty( scale ) ? "" : " * " + scale ) + ( string.IsNullOrEmpty( offset ) ? "" : " + " + offset ) + ";" );
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}
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else
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{
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dataCollector.AddToLocalVariables( dataCollector.PortCategory, uniqueId, PrecisionType.Float, size, varName, result + ( string.IsNullOrEmpty( scale ) ? "" : " * " + scale ) + ( string.IsNullOrEmpty( offset ) ? "" : " + " + offset ) );
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}
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result = varName;
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}
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else if( dataCollector.PortCategory == MasterNodePortCategory.Fragment )
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{
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if( size > WirePortDataType.FLOAT2 )
|
|
dataCollector.UsingHigherSizeTexcoords = true;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
// SCREEN POSITION NORMALIZED
|
|
static public string GenerateScreenPositionNormalizedForValue( string customVertexPos, string outputId, ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision, bool addInput = true )
|
|
{
|
|
string stringPosVar = GenerateScreenPositionForValue( customVertexPos, outputId, ref dataCollector, uniqueId, precision, addInput );
|
|
string varName = ScreenPositionNormalizedStr + uniqueId;
|
|
dataCollector.AddLocalVariable( uniqueId, string.Format( NormalizedScreenPosFormat, varName, stringPosVar ) );
|
|
dataCollector.AddLocalVariable( uniqueId, varName + ".z = ( UNITY_NEAR_CLIP_VALUE >= 0 ) ? " + varName + ".z : " + varName + ".z * 0.5 + 0.5;" );
|
|
|
|
return varName;
|
|
}
|
|
|
|
static public string GenerateScreenPositionNormalized( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision, bool addInput = true )
|
|
{
|
|
string stringPosVar = GenerateScreenPosition( ref dataCollector, uniqueId, precision, addInput );
|
|
|
|
dataCollector.AddLocalVariable( uniqueId, string.Format( NormalizedScreenPosFormat, ScreenPositionNormalizedStr, stringPosVar ) );
|
|
dataCollector.AddLocalVariable( uniqueId, ScreenPositionNormalizedStr + ".z = ( UNITY_NEAR_CLIP_VALUE >= 0 ) ? " + ScreenPositionNormalizedStr + ".z : " + ScreenPositionNormalizedStr + ".z * 0.5 + 0.5;" );
|
|
|
|
return ScreenPositionNormalizedStr;
|
|
}
|
|
|
|
// SCREEN POSITION
|
|
static public string GenerateScreenPositionForValue( string customVertexPosition, string outputId, ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision, bool addInput = true )
|
|
{
|
|
if( dataCollector.IsTemplate )
|
|
return dataCollector.TemplateDataCollectorInstance.GetScreenPosForValue( customVertexPosition, outputId );
|
|
|
|
|
|
string value = GenerateVertexScreenPositionForValue( customVertexPosition, outputId, ref dataCollector, uniqueId, precision );
|
|
string screenPosVarName = "screenPosition" + outputId;
|
|
dataCollector.AddToInput( uniqueId, screenPosVarName, WirePortDataType.FLOAT4, precision );
|
|
dataCollector.AddToVertexLocalVariables( uniqueId, Constants.VertexShaderOutputStr + "." + screenPosVarName + " = " + value + ";" );
|
|
|
|
string screenPosVarNameOnFrag = ScreenPositionStr + outputId;
|
|
string globalResult = Constants.InputVarStr + "." + screenPosVarName;
|
|
dataCollector.AddLocalVariable( uniqueId, string.Format( "float4 {0} = {1};", screenPosVarNameOnFrag, globalResult ) );
|
|
return screenPosVarNameOnFrag;
|
|
|
|
}
|
|
|
|
static public string GenerateScreenPosition( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision, bool addInput = true )
|
|
{
|
|
if( dataCollector.UsingCustomScreenPos && dataCollector.IsFragmentCategory )
|
|
{
|
|
string value = GenerateVertexScreenPosition( ref dataCollector, uniqueId, precision );
|
|
dataCollector.AddToInput( uniqueId, "screenPosition", WirePortDataType.FLOAT4, precision );
|
|
dataCollector.AddToVertexLocalVariables( uniqueId, Constants.VertexShaderOutputStr + ".screenPosition = " + value + ";" );
|
|
|
|
string globalResult = Constants.InputVarStr + ".screenPosition";
|
|
dataCollector.AddLocalVariable( uniqueId, string.Format( "float4 {0} = {1};", ScreenPositionStr, globalResult ) );
|
|
return ScreenPositionStr;
|
|
}
|
|
else
|
|
{
|
|
if( !dataCollector.IsFragmentCategory )
|
|
return GenerateVertexScreenPosition( ref dataCollector, uniqueId, precision );
|
|
|
|
if( dataCollector.IsTemplate )
|
|
return dataCollector.TemplateDataCollectorInstance.GetScreenPos();
|
|
}
|
|
|
|
|
|
if( addInput )
|
|
dataCollector.AddToInput( uniqueId, SurfaceInputs.SCREEN_POS, precision );
|
|
|
|
string result = Constants.InputVarStr + ".screenPos";
|
|
dataCollector.AddLocalVariable( uniqueId, string.Format( "float4 {0} = float4( {1}.xyz , {1}.w + 0.00000000001 );", ScreenPositionStr, result ) );
|
|
|
|
return ScreenPositionStr;
|
|
}
|
|
|
|
// GRAB SCREEN POSITION
|
|
static public string GenerateGrabScreenPosition( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision, bool addInput = true, string customScreenPos = null )
|
|
{
|
|
string screenPos = string.Empty;
|
|
if( string.IsNullOrEmpty( customScreenPos ) )
|
|
screenPos = GenerateScreenPosition( ref dataCollector, uniqueId, precision, addInput );
|
|
else
|
|
screenPos = customScreenPos;
|
|
|
|
string computeBody = string.Empty;
|
|
IOUtils.AddFunctionHeader( ref computeBody, GrabFunctionHeader );
|
|
foreach( string line in GrabFunctionBody )
|
|
IOUtils.AddFunctionLine( ref computeBody, line );
|
|
IOUtils.CloseFunctionBody( ref computeBody );
|
|
string functionResult = dataCollector.AddFunctions( GrabFunctionCall, computeBody, screenPos );
|
|
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT4, GrabScreenPositionStr, functionResult );
|
|
return GrabScreenPositionStr;
|
|
}
|
|
|
|
// GRAB SCREEN POSITION NORMALIZED
|
|
static public string GenerateGrabScreenPositionNormalized( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision, bool addInput = true, string customScreenPos = null )
|
|
{
|
|
string stringPosVar = GenerateGrabScreenPosition( ref dataCollector, uniqueId, precision, addInput, customScreenPos );
|
|
|
|
dataCollector.AddLocalVariable( uniqueId, string.Format( "float4 {0} = {1} / {1}.w;", GrabScreenPositionNormalizedStr, stringPosVar ) );
|
|
return GrabScreenPositionNormalizedStr;
|
|
}
|
|
|
|
// SCREEN POSITION ON VERT
|
|
static public string GenerateVertexScreenPositionForValue( string customVertexPosition, string outputId, ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
if( dataCollector.IsTemplate )
|
|
return dataCollector.TemplateDataCollectorInstance.GetScreenPosForValue( customVertexPosition, outputId );
|
|
|
|
string screenPosVarName = ScreenPositionStr + outputId;
|
|
string value = string.Format( "ComputeScreenPos( UnityObjectToClipPos( {0} ) )", customVertexPosition );
|
|
dataCollector.AddToVertexLocalVariables( uniqueId, precision, WirePortDataType.FLOAT4, screenPosVarName, value );
|
|
return screenPosVarName;
|
|
}
|
|
|
|
static public string GenerateVertexScreenPosition( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
if( dataCollector.IsTemplate )
|
|
return dataCollector.TemplateDataCollectorInstance.GetScreenPos();
|
|
|
|
string value = string.Format( "ComputeScreenPos( UnityObjectToClipPos( {0}.vertex ) )", Constants.VertexShaderInputStr );
|
|
dataCollector.AddToVertexLocalVariables( uniqueId, precision, WirePortDataType.FLOAT4, ScreenPositionStr, value );
|
|
return ScreenPositionStr;
|
|
}
|
|
|
|
// VERTEX POSITION
|
|
static public string GenerateVertexPosition( ref MasterNodeDataCollector dataCollector, int uniqueId, WirePortDataType size )
|
|
{
|
|
string value = Constants.VertexShaderInputStr + ".vertex";
|
|
if( size == WirePortDataType.FLOAT3 )
|
|
value += ".xyz";
|
|
|
|
if( dataCollector.PortCategory == MasterNodePortCategory.Fragment || dataCollector.PortCategory == MasterNodePortCategory.Debug )
|
|
{
|
|
dataCollector.AddToInput( uniqueId, SurfaceInputs.WORLD_POS );
|
|
dataCollector.AddToIncludes( uniqueId, Constants.UnityShaderVariables );
|
|
|
|
value = "mul( unity_WorldToObject, float4( " + Constants.InputVarStr + ".worldPos , 1 ) )";
|
|
}
|
|
string varName = VertexPosition4Str;
|
|
if( size == WirePortDataType.FLOAT3 )
|
|
varName = VertexPosition3Str;
|
|
|
|
dataCollector.AddLocalVariable( uniqueId, PrecisionType.Float, size, varName, value );
|
|
return varName;
|
|
}
|
|
|
|
// VERTEX NORMAL
|
|
static public string GenerateVertexNormal( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
if( dataCollector.MasterNodeCategory == AvailableShaderTypes.Template )
|
|
{
|
|
return dataCollector.TemplateDataCollectorInstance.GetVertexNormal( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision );
|
|
}
|
|
|
|
string value = Constants.VertexShaderInputStr + ".normal.xyz";
|
|
if( dataCollector.PortCategory == MasterNodePortCategory.Fragment || dataCollector.PortCategory == MasterNodePortCategory.Debug )
|
|
{
|
|
GenerateWorldNormal( ref dataCollector, uniqueId );
|
|
dataCollector.AddToLocalVariables( uniqueId, precision, WirePortDataType.FLOAT3, VertexNormalStr, "mul( unity_WorldToObject, float4( " + WorldNormalStr + ", 0 ) )" );
|
|
}
|
|
else
|
|
{
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3, VertexNormalStr, value );
|
|
}
|
|
return VertexNormalStr;
|
|
}
|
|
|
|
// VERTEX TANGENT
|
|
static public string GenerateVertexTangent( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision, WirePortDataType size )
|
|
{
|
|
if( dataCollector.MasterNodeCategory == AvailableShaderTypes.Template )
|
|
{
|
|
return dataCollector.TemplateDataCollectorInstance.GetVertexTangent( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision );
|
|
}
|
|
|
|
if( dataCollector.PortCategory == MasterNodePortCategory.Fragment || dataCollector.PortCategory == MasterNodePortCategory.Debug )
|
|
{
|
|
GenerateWorldTangent( ref dataCollector, uniqueId );
|
|
dataCollector.AddToLocalVariables( uniqueId, precision, WirePortDataType.FLOAT4, VertexTangentStr, "mul( unity_WorldToObject, float4( " + WorldTangentStr + ", 0 ) )" );
|
|
}
|
|
else
|
|
{
|
|
string value = Constants.VertexShaderInputStr + ".tangent";
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT4, VertexTangentStr, value );
|
|
}
|
|
|
|
return (size== WirePortDataType.FLOAT4)?VertexTangentStr: VertexTangentStr+".xyz";
|
|
}
|
|
|
|
// VERTEX TANGENT SIGN
|
|
static public string GenerateVertexTangentSign( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
if( dataCollector.MasterNodeCategory == AvailableShaderTypes.Template )
|
|
{
|
|
return dataCollector.TemplateDataCollectorInstance.GetTangentSign( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision );
|
|
}
|
|
|
|
string value = Constants.VertexShaderInputStr + ".tangent.w";
|
|
if( dataCollector.IsFragmentCategory )
|
|
{
|
|
dataCollector.AddToInput( uniqueId, VertexTangentSignStr, WirePortDataType.FLOAT, PrecisionType.Half );
|
|
dataCollector.AddToVertexLocalVariables( uniqueId, Constants.VertexShaderOutputStr + "." + VertexTangentSignStr + " = " + Constants.VertexShaderInputStr + ".tangent.w;" );
|
|
return Constants.InputVarStr + "." + VertexTangentSignStr;
|
|
}
|
|
else
|
|
{
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT, VertexTangentSignStr, value );
|
|
}
|
|
return VertexTangentSignStr;
|
|
}
|
|
|
|
// VERTEX BITANGENT
|
|
static public string GenerateVertexBitangent( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
if( dataCollector.MasterNodeCategory == AvailableShaderTypes.Template )
|
|
{
|
|
return dataCollector.TemplateDataCollectorInstance.GetVertexBitangent( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision );
|
|
}
|
|
|
|
if( dataCollector.PortCategory == MasterNodePortCategory.Fragment || dataCollector.PortCategory == MasterNodePortCategory.Debug )
|
|
{
|
|
GenerateWorldBitangent( ref dataCollector, uniqueId );
|
|
dataCollector.AddToLocalVariables( uniqueId, precision, WirePortDataType.FLOAT3, VertexBitangentStr, "mul( unity_WorldToObject, float4( " + WorldBitangentStr + ", 0 ) )" );
|
|
}
|
|
else
|
|
{
|
|
GenerateVertexNormal( ref dataCollector, uniqueId, precision );
|
|
GenerateVertexTangent( ref dataCollector, uniqueId, precision , WirePortDataType.FLOAT3 );
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3, VertexBitangentStr, "cross( " + VertexNormalStr + ", " + VertexTangentStr + ") * " + Constants.VertexShaderInputStr + ".tangent.w * unity_WorldTransformParams.w" );
|
|
}
|
|
return VertexBitangentStr;
|
|
}
|
|
|
|
// VERTEX POSITION ON FRAG
|
|
static public string GenerateVertexPositionOnFrag( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
dataCollector.AddToInput( uniqueId, SurfaceInputs.WORLD_POS );
|
|
dataCollector.AddToIncludes( uniqueId, Constants.UnityShaderVariables );
|
|
|
|
string value = "mul( unity_WorldToObject, float4( " + Constants.InputVarStr + ".worldPos , 1 ) )";
|
|
|
|
dataCollector.AddToLocalVariables( uniqueId, precision, WirePortDataType.FLOAT4, VertexPosition4Str, value );
|
|
return VertexPosition4Str;
|
|
}
|
|
|
|
// CLIP POSITION ON FRAG
|
|
static public string GenerateClipPositionOnFrag( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
if( dataCollector.IsTemplate )
|
|
return dataCollector.TemplateDataCollectorInstance.GetClipPos();
|
|
|
|
string vertexName = GenerateVertexPositionOnFrag( ref dataCollector, uniqueId, precision );
|
|
string value = string.Format( "ComputeScreenPos( UnityObjectToClipPos( {0} ) )", vertexName );
|
|
dataCollector.AddToLocalVariables( uniqueId, precision, WirePortDataType.FLOAT4, ClipPositionStr, value );
|
|
return ClipPositionStr;
|
|
}
|
|
|
|
// VIEW DIRECTION
|
|
static public string GenerateViewDirection( ref MasterNodeDataCollector dataCollector, int uniqueId, ViewSpace space = ViewSpace.World )
|
|
{
|
|
if( dataCollector.IsTemplate )
|
|
return ( space == ViewSpace.Tangent ) ? dataCollector.TemplateDataCollectorInstance.GetTangentViewDir( UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision ) : dataCollector.TemplateDataCollectorInstance.GetViewDir();
|
|
|
|
PrecisionType precision = UIUtils.CurrentWindow.CurrentGraph.CurrentPrecision;
|
|
string worldPos = GenerateWorldPosition( ref dataCollector, uniqueId );
|
|
string safeNormalizeInstruction = string.Empty;
|
|
if( dataCollector.SafeNormalizeViewDir )
|
|
{
|
|
if( dataCollector.IsTemplate && dataCollector.IsSRP )
|
|
{
|
|
safeNormalizeInstruction = "SafeNormalize";
|
|
}
|
|
else
|
|
{
|
|
if( dataCollector.IsTemplate )
|
|
dataCollector.AddToIncludes( -1, Constants.UnityBRDFLib );
|
|
safeNormalizeInstruction = "Unity_SafeNormalize";
|
|
}
|
|
}
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3, WorldViewDirectionStr, ( dataCollector.SafeNormalizeViewDir ? safeNormalizeInstruction : "normalize" ) + "( UnityWorldSpaceViewDir( " + worldPos + " ) )" );
|
|
|
|
if( space == ViewSpace.Tangent )
|
|
{
|
|
string worldToTangent = GenerateWorldToTangentMatrix( ref dataCollector, uniqueId, precision );
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3, TangentViewDirectionStr, "mul( " + worldToTangent + ", " + WorldViewDirectionStr + " )" );
|
|
return TangentViewDirectionStr;
|
|
}
|
|
else
|
|
{
|
|
return WorldViewDirectionStr;
|
|
}
|
|
}
|
|
|
|
// VIEW POS
|
|
static public string GenerateViewPositionOnFrag( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
if( dataCollector.IsTemplate )
|
|
UnityEngine.Debug.LogWarning( "View Pos not implemented on Templates" );
|
|
|
|
string vertexName = GenerateVertexPositionOnFrag( ref dataCollector, uniqueId, precision );
|
|
string value = string.Format( "UnityObjectToViewPos( {0} )", vertexName );
|
|
dataCollector.AddToLocalVariables( uniqueId, precision, WirePortDataType.FLOAT3, ViewPositionStr, value );
|
|
return ViewPositionStr;
|
|
}
|
|
|
|
// SCREEN DEPTH
|
|
static public string GenerateScreenDepthOnFrag( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
if( dataCollector.IsTemplate )
|
|
UnityEngine.Debug.LogWarning( "Screen Depth not implemented on Templates" );
|
|
|
|
string viewPos = GenerateViewPositionOnFrag( ref dataCollector, uniqueId, precision );
|
|
string value = string.Format( "-{0}.z", viewPos );
|
|
dataCollector.AddToLocalVariables( uniqueId, precision, WirePortDataType.FLOAT, ScreenDepthStr, value );
|
|
return ScreenDepthStr;
|
|
}
|
|
|
|
// LIGHT DIRECTION WORLD
|
|
static public string GenerateWorldLightDirection( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision )
|
|
{
|
|
dataCollector.AddToIncludes( uniqueId, Constants.UnityCgLibFuncs );
|
|
string worldPos = GeneratorUtils.GenerateWorldPosition( ref dataCollector, uniqueId );
|
|
dataCollector.AddLocalVariable( uniqueId, "#if defined(LIGHTMAP_ON) && UNITY_VERSION < 560 //aseld" );
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3, WorldLightDirStr, "0" );
|
|
dataCollector.AddLocalVariable( uniqueId, "#else //aseld" );
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3, WorldLightDirStr, ( dataCollector.SafeNormalizeLightDir ? "Unity_SafeNormalize" : "normalize" ) + "( UnityWorldSpaceLightDir( " + worldPos + " ) )" );
|
|
dataCollector.AddLocalVariable( uniqueId, "#endif //aseld" );
|
|
return WorldLightDirStr;
|
|
}
|
|
|
|
// LIGHT DIRECTION Object
|
|
static public string GenerateObjectLightDirection( ref MasterNodeDataCollector dataCollector, int uniqueId, PrecisionType precision, string vertexPos )
|
|
{
|
|
dataCollector.AddToIncludes( uniqueId, Constants.UnityCgLibFuncs );
|
|
dataCollector.AddLocalVariable( uniqueId, precision, WirePortDataType.FLOAT3, ObjectLightDirStr, "normalize( ObjSpaceLightDir( " + vertexPos + " ) )" );
|
|
return ObjectLightDirStr;
|
|
}
|
|
|
|
//MATRIX INVERSE
|
|
// 3x3
|
|
public static string Inverse3x3Header = "Inverse3x3( {0} )";
|
|
public static string[] Inverse3x3Function =
|
|
{
|
|
"{0}3x3 Inverse3x3({0}3x3 input)\n",
|
|
"{\n",
|
|
"\t{0}3 a = input._11_21_31;\n",
|
|
"\t{0}3 b = input._12_22_32;\n",
|
|
"\t{0}3 c = input._13_23_33;\n",
|
|
"\treturn {0}3x3(cross(b,c), cross(c,a), cross(a,b)) * (1.0 / dot(a,cross(b,c)));\n",
|
|
"}\n"
|
|
};
|
|
|
|
public static bool[] Inverse3x3FunctionFlags =
|
|
{
|
|
true,
|
|
false,
|
|
true,
|
|
true,
|
|
true,
|
|
true,
|
|
false
|
|
};
|
|
|
|
public static void Add3x3InverseFunction( ref MasterNodeDataCollector dataCollector, string precisionString )
|
|
{
|
|
if( !dataCollector.HasFunction( Inverse3x3Header ) )
|
|
{
|
|
//Hack to be used util indent is properly used
|
|
int currIndent = UIUtils.ShaderIndentLevel;
|
|
if( dataCollector.IsTemplate )
|
|
{
|
|
UIUtils.ShaderIndentLevel = 0;
|
|
}
|
|
else
|
|
{
|
|
UIUtils.ShaderIndentLevel = 1;
|
|
UIUtils.ShaderIndentLevel++;
|
|
}
|
|
string finalFunction = string.Empty;
|
|
for( int i = 0; i < Inverse3x3Function.Length; i++ )
|
|
{
|
|
finalFunction += UIUtils.ShaderIndentTabs + ( Inverse3x3FunctionFlags[ i ] ? string.Format( Inverse3x3Function[ i ], precisionString ) : Inverse3x3Function[ i ] );
|
|
}
|
|
|
|
|
|
UIUtils.ShaderIndentLevel = currIndent;
|
|
|
|
dataCollector.AddFunction( Inverse3x3Header, finalFunction );
|
|
}
|
|
}
|
|
|
|
public static string GenerateValueInVertex( ref MasterNodeDataCollector dataCollector, int uniqueId, WirePortDataType dataType, PrecisionType currentPrecisionType, string dataValue, string dataName, bool createInterpolator )
|
|
{
|
|
if( !dataCollector.IsFragmentCategory )
|
|
return dataValue;
|
|
|
|
//TEMPLATES
|
|
if( dataCollector.IsTemplate )
|
|
{
|
|
if( createInterpolator && dataCollector.TemplateDataCollectorInstance.HasCustomInterpolatedData( dataName ) )
|
|
return dataName;
|
|
|
|
MasterNodePortCategory category = dataCollector.PortCategory;
|
|
dataCollector.PortCategory = MasterNodePortCategory.Vertex;
|
|
|
|
dataCollector.PortCategory = category;
|
|
|
|
if( createInterpolator )
|
|
{
|
|
dataCollector.TemplateDataCollectorInstance.RegisterCustomInterpolatedData( dataName, dataType, currentPrecisionType, dataValue );
|
|
}
|
|
else
|
|
{
|
|
dataCollector.AddToVertexLocalVariables( -1, currentPrecisionType, dataType, dataName, dataValue );
|
|
}
|
|
|
|
return dataName;
|
|
}
|
|
|
|
//SURFACE
|
|
{
|
|
if( dataCollector.TesselationActive )
|
|
{
|
|
UIUtils.ShowMessage( "Unable to use Vertex to Frag when Tessellation is active" );
|
|
switch( dataType )
|
|
{
|
|
case WirePortDataType.FLOAT2:
|
|
{
|
|
return "(0).xx";
|
|
}
|
|
case WirePortDataType.FLOAT3:
|
|
{
|
|
return "(0).xxx";
|
|
}
|
|
case WirePortDataType.FLOAT4:
|
|
case WirePortDataType.COLOR:
|
|
{
|
|
return "(0).xxxx";
|
|
}
|
|
}
|
|
return "0";
|
|
}
|
|
|
|
if( createInterpolator )
|
|
dataCollector.AddToInput( uniqueId, dataName, dataType, currentPrecisionType );
|
|
|
|
MasterNodePortCategory portCategory = dataCollector.PortCategory;
|
|
dataCollector.PortCategory = MasterNodePortCategory.Vertex;
|
|
if( createInterpolator )
|
|
{
|
|
dataCollector.AddLocalVariable( uniqueId, Constants.VertexShaderOutputStr + "." + dataName, dataValue + ";" );
|
|
}
|
|
else
|
|
{
|
|
dataCollector.AddLocalVariable( uniqueId, currentPrecisionType, dataType, dataName, dataValue );
|
|
}
|
|
dataCollector.PortCategory = portCategory;
|
|
return createInterpolator ? Constants.InputVarStr + "." + dataName : dataName;
|
|
}
|
|
}
|
|
}
|
|
}
|