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Implement support for UNSIGNED_BYTE sparse accessors.

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This commit is contained in:
Lyuma
2023-12-04 02:28:58 -08:00
parent a700798c34
commit e6e57d2170
1 changed files with 27 additions and 0 deletions
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27
Assets/VRM10/Runtime/IO/Vrm10ImportData.cs
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@@ -77,6 +77,27 @@ namespace UniVRM10
return GetBufferBytes(Gltf.buffers[bufferViewBufferIndex]);
}
static NativeArray<byte> RestoreSparseAccessorUInt8<T>(INativeArrayManager arrayManager, NativeArray<byte> bytes, int accessorCount, NativeArray<byte> indices, NativeArray<byte> valuesBytes)
where T : struct
{
var stride = Marshal.SizeOf(typeof(T));
if (bytes.Length == 0)
{
bytes = arrayManager.CreateNativeArray<byte>(accessorCount * stride);
}
var dst = bytes.Reinterpret<T>(1);
var values = valuesBytes.Reinterpret<T>(1);
for (int i = 0; i < indices.Length; ++i)
{
var index = indices[i];
var value = values[i];
dst[index] = value;
}
return bytes;
}
static NativeArray<byte> RestoreSparseAccessorUInt16<T>(INativeArrayManager arrayManager, NativeArray<byte> bytes, int accessorCount, NativeArray<byte> indicesBytes, NativeArray<byte> valuesBytes)
where T : struct
{
@@ -165,6 +186,12 @@ namespace UniVRM10
.GetSubArray(sparse.values.byteOffset, accessor.GetStride() * sparse.count);
;
if (sparse.indices.componentType == (UniGLTF.glComponentType)AccessorValueType.UNSIGNED_BYTE
&& accessor.componentType == (UniGLTF.glComponentType)AccessorValueType.FLOAT
&& accessor.type == "VEC3")
{
return RestoreSparseAccessorUInt8<Vector3>(m_data.NativeArrayManager, bytes, accessor.count, sparseIndexBytes, sparseValueBytes);
}
if (sparse.indices.componentType == (UniGLTF.glComponentType)AccessorValueType.UNSIGNED_SHORT
&& accessor.componentType == (UniGLTF.glComponentType)AccessorValueType.FLOAT
&& accessor.type == "VEC3")