/// <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);
}
/// <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 の Texture が存在せず Image のみのものを、Texture として扱いたい場合の関数.
/// </summary>
public static (SubAssetKey, TextureDescriptor) CreateSrgbFromOnlyImage(GltfData data, int imageIndex, string uniqueName, string uri)
{
var name = TextureImportName.GetUnityObjectName(TextureImportTypes.sRGB, uniqueName, uri);
var texDesc = new TextureDescriptor(
name,
Vector2.zero,
Vector2.one,
public static (SubAssetKey, TextureDescriptor) CreateSRGB(GltfData data, int textureIndex, Vector2 offset, Vector2 scale)
{
var gltfTexture = data.GLTF.textures[textureIndex];
var gltfImage = data.GLTF.images[gltfTexture.source];
var name = TextureImportName.GetUnityObjectName(TextureImportTypes.sRGB, gltfTexture.name, gltfImage.uri);
var sampler = TextureSamplerUtil.CreateSampler(data.GLTF, textureIndex);
GetTextureBytesAsync getTextureBytesAsync = () => Task.FromResult(ToArray(data.GetImageBytesFromTextureIndex(textureIndex)));
var param = new TextureDescriptor(name, gltfImage.GetExt(), gltfImage.uri, offset, scale, sampler, TextureImportTypes.sRGB, default, default, getTextureBytesAsync, default, default, default, default, default);
public static (SubAssetKey, TextureImportParam Param) CreateSRGB(GltfParser parser, int textureIndex, Vector2 offset, Vector2 scale)
{
var gltfTexture = parser.GLTF.textures[textureIndex];
var gltfImage = parser.GLTF.images[gltfTexture.source];
var name = TextureImportName.GetUnityObjectName(TextureImportTypes.sRGB, gltfTexture.name, gltfImage.uri);
var sampler = CreateSampler(parser.GLTF, textureIndex);
GetTextureBytesAsync getTextureBytesAsync = () => Task.FromResult(ToArray(parser.GLTF.GetImageBytesFromTextureIndex(parser.Storage, textureIndex)));
var key = new SubAssetKey(typeof(Texture2D), name);
var param = new TextureImportParam(name, gltfImage.GetExt(), gltfImage.uri, offset, scale, sampler, TextureImportTypes.sRGB, default, default, getTextureBytesAsync, default, default, default, default, default);
/// <summary>
/// VRM-1 の thumbnail テクスチャー。gltf.textures ではなく gltf.images の参照であることに注意(sampler等の設定が無い)
/// </summary>
public static bool TryGetMetaThumbnailTextureImportParam(GltfParser parser, UniGLTF.Extensions.VRMC_vrm.VRMC_vrm vrm, out (SubAssetKey, TextureImportParam) value)
{
if (vrm?.Meta?.ThumbnailImage == null)
{
value = default;
return(false);
}
var imageIndex = vrm.Meta.ThumbnailImage.Value;
var gltfImage = parser.GLTF.images[imageIndex];
var name = TextureImportName.GetUnityObjectName(TextureImportTypes.sRGB, gltfImage.name, gltfImage.uri);
GetTextureBytesAsync getThumbnailImageBytesAsync = () =>
{
var bytes = parser.GLTF.GetImageBytes(parser.Storage, imageIndex);
return(Task.FromResult(GltfTextureImporter.ToArray(bytes)));
};
var param = new TextureImportParam(name, gltfImage.GetExt(), gltfImage.uri, Vector2.zero, Vector2.one, default, TextureImportTypes.sRGB, default, default,
/// <summary>
/// VRM-1 の thumbnail テクスチャー。gltf.textures ではなく gltf.images の参照であることに注意(sampler等の設定が無い)
///
/// MToonとは無関係だがとりあえずここに
/// </summary>
/// <param name="parser"></param>
/// <param name="vrm"></param>
/// <param name="value"></param>
/// <returns></returns>
public static bool TryGetMetaThumbnailTextureImportParam(GltfParser parser, UniGLTF.Extensions.VRMC_vrm.VRMC_vrm vrm, out TextureImportParam value)
{
if (!vrm.Meta.ThumbnailImage.HasValue)
{
value = default;
return(false);
}
// thumbnail
var imageIndex = vrm.Meta.ThumbnailImage.Value;
var gltfImage = parser.GLTF.images[imageIndex];
var name = new TextureImportName(TextureImportTypes.sRGB, gltfImage.name, gltfImage.GetExt(), "");
GetTextureBytesAsync getBytesAsync = () =>
{
var bytes = parser.GLTF.GetImageBytes(parser.Storage, imageIndex);
return(Task.FromResult(GltfTextureImporter.ToArray(bytes)));
};
value = new TextureImportParam(name, Vector2.zero, Vector2.one, default, TextureImportTypes.sRGB, default, default,