public ArraySegment <byte> GetImageBytes(glTFImage image)
{
if (string.IsNullOrEmpty(image.uri))
{
return(GLTF.GetViewBytes(IO, image.bufferView));
}
else
{
return(IO.Get(image.uri));
}
}
public static VrmLib.Image FromGltf(this glTFImage x, Vrm10Storage storage)
{
if (x.bufferView == -1)
{
// 外部参照？
throw new Exception();
}
var view = storage.Gltf.bufferViews[x.bufferView];
var buffer = storage.Gltf.buffers[view.buffer];
// テクスチャの用途を調べる
var usage = default(VrmLib.ImageUsage);
foreach (var material in storage.Gltf.materials)
{
var colorImage = GetColorImage(storage, material);
if (colorImage == x)
{
usage |= VrmLib.ImageUsage.Color;
}
var normalImage = GetNormalImage(storage, material);
if (normalImage == x)
{
usage |= VrmLib.ImageUsage.Normal;
}
}
var memory = storage.GetBufferBytes(buffer);
return(new VrmLib.Image(x.name,
x.mimeType,
usage,
memory.Slice(view.byteOffset, view.byteLength)));
}
