/// <summary>
/// gltf に texture を足す
///
/// * textures
/// * samplers
/// * images
/// * bufferViews
///
/// を更新し、textures の index を返す
///
/// もっとも根本の Exporter クラスのみが呼び出すべきである。
/// 他の拡張機能などが呼び出すべきではない。
///
/// </summary>
/// <returns>gltf texture index</returns>
public static int PushGltfTexture(ExportingGltfData data, Texture2D texture, ColorSpace textureColorSpace, ITextureSerializer textureSerializer)
{
var bytesWithMime = textureSerializer.ExportBytesWithMime(texture, textureColorSpace);
// add view
var viewIndex = data.ExtendBufferAndGetViewIndex(bytesWithMime.bytes);
// add image
var imageIndex = data.GLTF.images.Count;
data.GLTF.images.Add(new glTFImage
{
name = TextureImportName.RemoveSuffix(texture.name),
bufferView = viewIndex,
mimeType = bytesWithMime.mime,
});
// add sampler
var samplerIndex = data.GLTF.samplers.Count;
var sampler = TextureSamplerUtil.Export(texture);
data.GLTF.samplers.Add(sampler);
// add texture
var textureIndex = data.GLTF.textures.Count;
data.GLTF.textures.Add(new glTFTexture
{
sampler = samplerIndex,
source = imageIndex,
});
return(textureIndex);
}
/// <summary>
/// gltf に texture を足す
///
/// * textures
/// * samplers
/// * images
/// * bufferViews
///
/// を更新し、textures の index を返す
///
/// </summary>
/// <param name="gltf"></param>
/// <param name="bufferIndex"></param>
/// <param name="texture"></param>
/// <returns>gltf texture index</returns>
public static int PushGltfTexture(this glTF gltf, int bufferIndex, Texture2D texture)
{
var bytesWithMime = GetBytesWithMime(texture);
// add view
var view = gltf.buffers[bufferIndex].Append(bytesWithMime.bytes, glBufferTarget.NONE);
var viewIndex = gltf.AddBufferView(view);
// add image
var imageIndex = gltf.images.Count;
gltf.images.Add(new glTFImage
{
name = TextureImportName.RemoveSuffix(texture.name),
bufferView = viewIndex,
mimeType = bytesWithMime.mine,
});
// add sampler
var samplerIndex = gltf.samplers.Count;
var sampler = TextureSamplerUtil.Export(texture);
gltf.samplers.Add(sampler);
// add texture
var textureIndex = gltf.textures.Count;
gltf.textures.Add(new glTFTexture
{
sampler = samplerIndex,
source = imageIndex,
});
return(textureIndex);
}