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162 lines
5.4 KiB
162 lines
5.4 KiB
using System; |
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using System.Text; |
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using UnityEditor.Graphing; |
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using UnityEngine; |
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namespace UnityEditor.ShaderGraph.Internal |
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{ |
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[Serializable] |
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[FormerName("UnityEditor.ShaderGraph.TextureShaderProperty")] |
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[BlackboardInputInfo(50)] |
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public sealed class Texture2DShaderProperty : AbstractShaderProperty<SerializableTexture> |
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{ |
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public enum DefaultType { White, Black, Grey, NormalMap, LinearGrey, Red } |
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static readonly string[] k_DefaultTypeNames = new string[] |
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{ |
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"white", |
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"black", |
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"grey", |
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"bump", |
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"linearGrey", |
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"red", |
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}; |
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internal static string ToShaderLabString(DefaultType defaultType) |
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{ |
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int index = (int)defaultType; |
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if ((index >= 0) && (index < k_DefaultTypeNames.Length)) |
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return k_DefaultTypeNames[index]; |
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return string.Empty; |
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} |
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internal Texture2DShaderProperty() |
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{ |
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displayName = "Texture2D"; |
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value = new SerializableTexture(); |
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} |
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public override PropertyType propertyType => PropertyType.Texture2D; |
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[SerializeField] |
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internal bool isMainTexture = false; |
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internal override bool isExposable => true; |
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internal override bool isRenamable => true; |
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internal string modifiableTagString => modifiable ? "" : "[NonModifiableTextureData]"; |
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[SerializeField] |
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internal bool useTilingAndOffset = false; |
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internal string useSTString => useTilingAndOffset ? "" : "[NoScaleOffset]"; |
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internal string mainTextureString => isMainTexture ? "[MainTexture]" : ""; |
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internal override string GetPropertyBlockString() |
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{ |
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var normalTagString = (defaultType == DefaultType.NormalMap) ? "[Normal]" : ""; |
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return $"{hideTagString}{modifiableTagString}{normalTagString}{mainTextureString}{useSTString}{referenceName}(\"{displayName}\", 2D) = \"{ToShaderLabString(defaultType)}\" {{}}"; |
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} |
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// Texture2D properties cannot be set via Hybrid path at the moment; disallow that choice |
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internal override bool AllowHLSLDeclaration(HLSLDeclaration decl) => (decl != HLSLDeclaration.HybridPerInstance) && (decl != HLSLDeclaration.DoNotDeclare); |
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internal override void ForeachHLSLProperty(Action<HLSLProperty> action) |
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{ |
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HLSLDeclaration decl = (generatePropertyBlock ? HLSLDeclaration.UnityPerMaterial : HLSLDeclaration.Global); |
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action(new HLSLProperty(HLSLType._Texture2D, referenceName, HLSLDeclaration.Global)); |
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action(new HLSLProperty(HLSLType._SamplerState, "sampler" + referenceName, HLSLDeclaration.Global)); |
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action(new HLSLProperty(HLSLType._float4, referenceName + "_TexelSize", decl)); |
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if (useTilingAndOffset) |
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{ |
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action(new HLSLProperty(HLSLType._float4, referenceName + "_ST", decl)); |
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} |
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} |
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internal override string GetPropertyAsArgumentString(string precisionString) |
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{ |
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return "UnityTexture2D " + referenceName; |
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} |
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internal override string GetPropertyAsArgumentStringForVFX(string precisionString) |
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{ |
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return "TEXTURE2D(" + referenceName + ")"; |
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} |
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internal override string GetHLSLVariableName(bool isSubgraphProperty, GenerationMode mode) |
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{ |
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if (isSubgraphProperty) |
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return referenceName; |
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else |
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{ |
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if (useTilingAndOffset) |
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{ |
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return $"UnityBuildTexture2DStruct({referenceName})"; |
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} |
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else |
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{ |
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return $"UnityBuildTexture2DStructNoScale({referenceName})"; |
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} |
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} |
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} |
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[SerializeField] |
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bool m_Modifiable = true; |
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internal bool modifiable |
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{ |
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get => m_Modifiable; |
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set => m_Modifiable = value; |
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} |
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[SerializeField] |
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DefaultType m_DefaultType = DefaultType.White; |
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public DefaultType defaultType |
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{ |
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get { return m_DefaultType; } |
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set { m_DefaultType = value; } |
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} |
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internal override AbstractMaterialNode ToConcreteNode() |
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{ |
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return new Texture2DAssetNode { texture = value.texture }; |
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} |
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internal override PreviewProperty GetPreviewMaterialProperty() |
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{ |
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return new PreviewProperty(propertyType) |
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{ |
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name = referenceName, |
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textureValue = value.texture, |
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texture2DDefaultType = defaultType |
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}; |
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} |
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internal override ShaderInput Copy() |
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{ |
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return new Texture2DShaderProperty() |
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{ |
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displayName = displayName, |
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value = value, |
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defaultType = defaultType, |
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useTilingAndOffset = useTilingAndOffset, |
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isMainTexture = isMainTexture |
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}; |
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} |
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internal override void OnBeforePasteIntoGraph(GraphData graph) |
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{ |
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if (isMainTexture) |
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{ |
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Texture2DShaderProperty existingMain = graph.GetMainTexture(); |
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if (existingMain != null && existingMain != this) |
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{ |
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isMainTexture = false; |
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} |
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} |
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base.OnBeforePasteIntoGraph(graph); |
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} |
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} |
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}
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