mathe/Library/PackageCache/com.unity.shadergraph@14.0.8/Editor/Data/Graphs/GradientShaderProperty.cs

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C#
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2024-09-20 20:30:10 +02:00
using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using UnityEditor.ShaderGraph.Drawing.Controls;
using UnityEngine;
using UnityEditor.Graphing;
using UnityEditor.ShaderGraph.Internal;
namespace UnityEditor.ShaderGraph
{
[Serializable]
[BlackboardInputInfo(30)]
class GradientShaderProperty : AbstractShaderProperty<Gradient>
{
public GradientShaderProperty()
{
displayName = "Gradient";
value = new Gradient();
}
public override PropertyType propertyType => PropertyType.Gradient;
internal override bool isExposable => false;
internal override bool isRenamable => true;
internal override bool AllowHLSLDeclaration(HLSLDeclaration decl) => false; // disable UI, nothing to choose
internal override void ForeachHLSLProperty(Action<HLSLProperty> action)
{
Action<ShaderStringBuilder> customDecl = (builder) =>
{
StringBuilder colors = new("{");
StringBuilder alphas = new("{");
for (int i = 0; i < 8; ++i)
{
if (i < value.colorKeys.Length)
colors.AppendFormat("{0}4({1},{2},{3},{4})"
, concretePrecision.ToShaderString()
, NodeUtils.FloatToShaderValue(value.colorKeys[i].color.r)
, NodeUtils.FloatToShaderValue(value.colorKeys[i].color.g)
, NodeUtils.FloatToShaderValue(value.colorKeys[i].color.b)
, NodeUtils.FloatToShaderValue(value.colorKeys[i].time));
else colors.AppendFormat("{0}4(0,0,0,0)", concretePrecision.ToShaderString());
if (i < value.alphaKeys.Length)
alphas.AppendFormat("{0}2({1},{2})"
, concretePrecision.ToShaderString()
, NodeUtils.FloatToShaderValue(value.alphaKeys[i].alpha)
, NodeUtils.FloatToShaderValue(value.alphaKeys[i].time));
else alphas.AppendFormat("{0}2(0,0)", concretePrecision.ToShaderString());
if (i < 7)
{
colors.Append(",");
alphas.Append(",");
}
else
{
colors.Append("}");
alphas.Append("}");
}
}
builder.AppendLine("static Gradient {0} = {{{1},{2},{3},{4},{5}}};"
, referenceName
, (int)value.mode
, value.colorKeys.Length
, value.alphaKeys.Length
, colors.ToString()
, alphas.ToString());
};
action(
new HLSLProperty(HLSLType._CUSTOM, referenceName, HLSLDeclaration.Global, concretePrecision)
{
customDeclaration = customDecl
});
}
internal override string GetPropertyAsArgumentString(string precisionString)
{
return "Gradient " + referenceName;
}
internal override AbstractMaterialNode ToConcreteNode()
{
return new GradientNode { gradient = value };
}
internal override PreviewProperty GetPreviewMaterialProperty()
{
return new PreviewProperty(propertyType)
{
name = referenceName,
gradientValue = value
};
}
internal override ShaderInput Copy()
{
return new GradientShaderProperty
{
displayName = displayName,
value = value,
};
}
}
}