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38 lines
1.1 KiB
38 lines
1.1 KiB
using System.Reflection;
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using UnityEngine;
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namespace UnityEditor.ShaderGraph
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{
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[Title("Procedural", "Shape", "Ellipse")]
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class EllipseNode : CodeFunctionNode
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{
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public EllipseNode()
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{
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name = "Ellipse";
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synonyms = new string[] { "circle" };
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}
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protected override MethodInfo GetFunctionToConvert()
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{
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return GetType().GetMethod("Unity_Ellipse", BindingFlags.Static | BindingFlags.NonPublic);
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}
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static string Unity_Ellipse(
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[Slot(0, Binding.MeshUV0)] Vector2 UV,
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[Slot(2, Binding.None, 0.5f, 0, 0, 0)] Vector1 Width,
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[Slot(3, Binding.None, 0.5f, 0, 0, 0)] Vector1 Height,
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[Slot(4, Binding.None, ShaderStageCapability.Fragment)] out Vector1 Out)
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{
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return
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@"
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{
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#if defined(SHADER_STAGE_RAY_TRACING)
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Out = saturate((1.0 - length((UV * 2 - 1) / $precision2(Width, Height))) * 1e7);
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#else
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$precision d = length((UV * 2 - 1) / $precision2(Width, Height));
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Out = saturate((1 - d) / fwidth(d));
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#endif
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}";
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}
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}
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}
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