89 lines
2.8 KiB
C#
89 lines
2.8 KiB
C#
using System;
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using System.Linq;
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namespace UnityEditor.ShaderGraph.Internal
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{
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[Flags]
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public enum NeededCoordinateSpace
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{
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None = 0,
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Object = 1 << 0,
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View = 1 << 1,
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World = 1 << 2,
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Tangent = 1 << 3,
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AbsoluteWorld = 1 << 4
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}
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public enum CoordinateSpace
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{
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Object,
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View,
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World,
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Tangent,
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AbsoluteWorld
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}
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public enum InterpolatorType
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{
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Normal,
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BiTangent,
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Tangent,
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ViewDirection,
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Position,
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PositionPredisplacement,
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}
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public static class CoordinateSpaceExtensions
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{
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static int s_SpaceCount = Enum.GetValues(typeof(CoordinateSpace)).Length;
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static int s_InterpolatorCount = Enum.GetValues(typeof(InterpolatorType)).Length;
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static string[] s_VariableNames = new string[s_SpaceCount * s_InterpolatorCount];
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public static string ToVariableName(this CoordinateSpace space, InterpolatorType type)
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{
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var index = (int)space + (int)type * s_SpaceCount;
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if (string.IsNullOrEmpty(s_VariableNames[index]))
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s_VariableNames[index] = string.Format("{0}Space{1}", space, type);
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return s_VariableNames[index];
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}
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public static NeededCoordinateSpace ToNeededCoordinateSpace(this CoordinateSpace space)
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{
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switch (space)
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{
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case CoordinateSpace.Object:
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return NeededCoordinateSpace.Object;
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case CoordinateSpace.View:
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return NeededCoordinateSpace.View;
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case CoordinateSpace.World:
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return NeededCoordinateSpace.World;
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case CoordinateSpace.Tangent:
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return NeededCoordinateSpace.Tangent;
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case CoordinateSpace.AbsoluteWorld:
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return NeededCoordinateSpace.AbsoluteWorld;
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default:
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throw new ArgumentOutOfRangeException(nameof(space), space, null);
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}
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}
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public static CoordinateSpace ToCoordinateSpace(this NeededCoordinateSpace space)
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{
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switch (space)
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{
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case NeededCoordinateSpace.Object:
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return CoordinateSpace.Object;
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case NeededCoordinateSpace.View:
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return CoordinateSpace.View;
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case NeededCoordinateSpace.World:
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return CoordinateSpace.World;
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case NeededCoordinateSpace.Tangent:
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return CoordinateSpace.Tangent;
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case NeededCoordinateSpace.AbsoluteWorld:
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return CoordinateSpace.AbsoluteWorld;
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default:
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throw new ArgumentOutOfRangeException(nameof(space), space, null);
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}
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}
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}
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}
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