43 lines
1.7 KiB
C#
43 lines
1.7 KiB
C#
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using System;
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using UnityEditor.ShaderGraph.Internal;
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using UnityEngine;
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namespace UnityEditor.ShaderGraph
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{
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[Serializable]
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abstract class MatrixShaderProperty : AbstractShaderProperty<Matrix4x4>
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{
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internal override bool isExposable => false;
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internal override bool isRenamable => true;
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internal override string GetHLSLVariableName(bool isSubgraphProperty, GenerationMode mode)
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{
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HLSLDeclaration decl = GetDefaultHLSLDeclaration();
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if (decl == HLSLDeclaration.HybridPerInstance)
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return $"UNITY_ACCESS_HYBRID_INSTANCED_PROP({referenceName}, {concretePrecision.ToShaderString()}4x4)";
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else
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return base.GetHLSLVariableName(isSubgraphProperty, mode);
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}
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internal override HLSLDeclaration GetDefaultHLSLDeclaration()
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{
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if (overrideHLSLDeclaration)
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return hlslDeclarationOverride;
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// Since Matrices cannot be exposed, the default declaration rules would set them to Global.
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// However, this means new Matrix properties would be different from all other float-based property types
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// (all others use UnityPerMaterial by default, because they are exposed).
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// So instead, we override the default rules so that Matrices always default to UnityPerMaterial
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return HLSLDeclaration.UnityPerMaterial;
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}
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internal override void ForeachHLSLProperty(Action<HLSLProperty> action)
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{
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HLSLDeclaration decl = GetDefaultHLSLDeclaration();
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// HLSL decl is always 4x4 even if matrix smaller
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action(new HLSLProperty(HLSLType._matrix4x4, referenceName, decl, concretePrecision));
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}
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}
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}
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