56 lines
2.0 KiB
C#
56 lines
2.0 KiB
C#
using System.Collections.Generic;
|
|
using UnityEditor.ShaderGraph.Internal;
|
|
|
|
namespace UnityEditor.ShaderGraph
|
|
{
|
|
public struct NeededTransform
|
|
{
|
|
static Dictionary<UnityMatrixType, NeededTransform> s_TransformMap = new Dictionary<UnityMatrixType, NeededTransform>
|
|
{
|
|
{UnityMatrixType.Model, ObjectToWorld},
|
|
{UnityMatrixType.InverseModel, WorldToObject},
|
|
|
|
// TODO: Define the rest.
|
|
{UnityMatrixType.View, None},
|
|
{UnityMatrixType.InverseView, None},
|
|
{UnityMatrixType.Projection, None},
|
|
{UnityMatrixType.InverseProjection, None},
|
|
{UnityMatrixType.ViewProjection, None},
|
|
{UnityMatrixType.InverseViewProjection, None},
|
|
};
|
|
|
|
public static NeededTransform None => new NeededTransform(NeededCoordinateSpace.None, NeededCoordinateSpace.None);
|
|
public static NeededTransform ObjectToWorld => new NeededTransform(NeededCoordinateSpace.Object, NeededCoordinateSpace.World);
|
|
public static NeededTransform WorldToObject => new NeededTransform(NeededCoordinateSpace.World, NeededCoordinateSpace.Object);
|
|
|
|
public NeededTransform(NeededCoordinateSpace from, NeededCoordinateSpace to)
|
|
{
|
|
this.from = from;
|
|
this.to = to;
|
|
}
|
|
|
|
// Secondary constructor for certain nodes like TransformationMatrix.
|
|
internal NeededTransform(UnityMatrixType matrix)
|
|
{
|
|
if (s_TransformMap.TryGetValue(matrix, out var transform))
|
|
{
|
|
from = transform.from;
|
|
to = transform.to;
|
|
}
|
|
else
|
|
{
|
|
from = NeededCoordinateSpace.None;
|
|
to = NeededCoordinateSpace.None;
|
|
}
|
|
}
|
|
|
|
public NeededCoordinateSpace from;
|
|
public NeededCoordinateSpace to;
|
|
}
|
|
|
|
interface IMayRequireTransform
|
|
{
|
|
NeededTransform[] RequiresTransform(ShaderStageCapability stageCapability = ShaderStageCapability.All);
|
|
}
|
|
}
|