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Misaki
2024-09-16 00:08:10 +09:00
commit 0a4745662a
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Runtime/Cloner/Helper/MatrixHelper.cs Normal file
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using System;
using System.Collections.Generic;
using Unity.Mathematics;
using UnityEngine;
namespace Misaki.ArtTool
{
internal static class MatrixHelper
{
internal static void DecomposeMatrix(float4x4 matrix, out float3 position, out quaternion rotation, out float3 scale)
{
position = matrix.c3.xyz;
scale = new float3(
math.length(matrix.c0.xyz),
math.length(matrix.c1.xyz),
math.length(matrix.c2.xyz)
);
rotation = quaternion.LookRotation(matrix.c2.xyz / scale.z, matrix.c1.xyz / scale.y);
}
internal static void DecomposeMatrixToVector(float4x4 matrix, out Vector3 position, out Quaternion rotation, out Vector3 scale)
{
position = matrix.c3.xyz;
scale = new Vector3(
math.length(matrix.c0.xyz),
math.length(matrix.c1.xyz),
math.length(matrix.c2.xyz)
);
rotation = Quaternion.LookRotation(matrix.c2.xyz / scale.z, matrix.c1.xyz / scale.y);
}
internal static void DecomposeMatrixListAsSpan(in IList<Matrix4x4> matrixList, Span<Vector3> positions, Span<Quaternion> rotations, Span<Vector3> scales)
{
if (matrixList.Count != positions.Length || matrixList.Count != rotations.Length || matrixList.Count != scales.Length)
{
throw new ArgumentException("The length of the spans must match the number of matrices in the list.");
}
for (var i = 0; i < matrixList.Count; i++)
{
DecomposeMatrixToVector(matrixList[i], out positions[i], out rotations[i], out scales[i]);
}
}
internal static void DecomposeMatrixListAsSpan(ReadOnlySpan<float4x4> matrixList, Span<Vector3> positions, Span<Quaternion> rotations, Span<Vector3> scales)
{
if (matrixList.Length != positions.Length || matrixList.Length != rotations.Length || matrixList.Length != scales.Length)
{
throw new ArgumentException("The length of the spans must match the number of matrices in the list.");
}
for (var i = 0; i < matrixList.Length; i++)
{
DecomposeMatrixToVector(matrixList[i], out positions[i], out rotations[i], out scales[i]);
}
}
internal static void DecomposeMatrixListAsSpan(ReadOnlySpan<PointData> matrixList, Span<Vector3> positions, Span<Quaternion> rotations, Span<Vector3> scales)
{
if (matrixList.Length != positions.Length || matrixList.Length != rotations.Length || matrixList.Length != scales.Length)
{
throw new ArgumentException("The length of the spans must match the number of matrices in the list.");
}
for (var i = 0; i < matrixList.Length; i++)
{
DecomposeMatrixToVector(matrixList[i].matrix, out positions[i], out rotations[i], out scales[i]);
}
}
internal static float3 GetScale(this float4x4 matrix)
{
return new float3(math.length(matrix.c0.xyz), math.length(matrix.c1.xyz), math.length(matrix.c2.xyz));
}
}
}