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using System.Reflection;
using UnityEngine;
namespace UnityEditor.ShaderGraph
{
[Title("Procedural", "Shape", "Ellipse")]
public class EllipseNode : CodeFunctionNode
{
public EllipseNode()
{
name = "Ellipse";
}
public override string documentationURL
{
get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Ellipse-Node"; }
}
protected override MethodInfo GetFunctionToConvert()
{
return GetType().GetMethod("Unity_Ellipse", BindingFlags.Static | BindingFlags.NonPublic);
}
static string Unity_Ellipse(
[Slot(0, Binding.MeshUV0)] Vector2 UV,
[Slot(2, Binding.None, 0.5f, 0, 0, 0)] Vector1 Width,
[Slot(3, Binding.None, 0.5f, 0, 0, 0)] Vector1 Height,
[Slot(4, Binding.None)] out Vector1 Out)
{
return
@"
{
{precision} d = length((UV * 2 - 1) / {precision}2(Width, Height));
Out = saturate((1 - d) / fwidth(d));
}";
}
}
}