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38 行
1.1 KiB

using System.Reflection;
using UnityEngine;
namespace UnityEditor.ShaderGraph
{
[Title("UV", "Polar Coordinates")]
public class PolarCoordinatesNode : CodeFunctionNode
{
public PolarCoordinatesNode()
{
name = "Polar Coordinates";
}
protected override MethodInfo GetFunctionToConvert()
{
return GetType().GetMethod("Unity_PolarCoordinates", BindingFlags.Static | BindingFlags.NonPublic);
}
static string Unity_PolarCoordinates(
[Slot(0, Binding.MeshUV0)] Vector2 UV,
[Slot(1, Binding.None, 0.5f, 0.5f, 0.5f, 0.5f)] Vector2 Center,
[Slot(2, Binding.None, 1.0f, 1.0f, 1.0f, 1.0f)] Vector1 RadialScale,
[Slot(3, Binding.None, 1.0f, 1.0f, 1.0f, 1.0f)] Vector1 LengthScale,
[Slot(4, Binding.None)] out Vector2 Out)
{
Out = Vector2.zero;
return
@"
{
float2 delta = UV - Center;
{precision} radius = length(delta) * 2 * RadialScale;
{precision} angle = atan2(delta.x, delta.y) * 1.0/6.28 * LengthScale;
Out = float2(radius, angle);
}
";
}
}
}