public static IEnumerable <(string key, Color value)> TryGetAllColors(glTFMaterial material, VRMC_materials_mtoon mToon)
{
const ColorSpace gltfColorSpace = ColorSpace.Linear;
var baseColor = material?.pbrMetallicRoughness?.baseColorFactor?.ToColor4(gltfColorSpace, ColorSpace.sRGB);
if (baseColor.HasValue)
{
yield return(MToon.Utils.PropColor, baseColor.Value);
}
var emissionColor = material?.emissiveFactor?.ToColor3(gltfColorSpace, ColorSpace.Linear);
if (emissionColor.HasValue)
{
yield return(MToon.Utils.PropEmissionColor, emissionColor.Value);
}
var shadeColor = mToon?.ShadeColorFactor?.ToColor3(gltfColorSpace, ColorSpace.sRGB);
if (shadeColor.HasValue)
{
yield return(MToon.Utils.PropShadeColor, shadeColor.Value);
}
var rimColor = mToon?.ParametricRimColorFactor?.ToColor3(gltfColorSpace, ColorSpace.Linear);
if (rimColor.HasValue)
{
yield return(MToon.Utils.PropRimColor, rimColor.Value);
}
var outlineColor = mToon?.OutlineColorFactor?.ToColor3(gltfColorSpace, ColorSpace.sRGB);
if (outlineColor.HasValue)
{
yield return(MToon.Utils.PropOutlineColor, outlineColor.Value);
}
}
private static Color ConvertColorSpace(this Color srcColor, ColorSpace srcColorSpace, ColorSpace dstColorSpace)
{
// Need pattern matching :(
if (srcColorSpace == ColorSpace.sRGB && dstColorSpace == ColorSpace.sRGB)
{
return(srcColor);
}
else if (srcColorSpace == ColorSpace.sRGB && dstColorSpace == ColorSpace.Linear)
{
return(srcColor.linear);
}
else if (srcColorSpace == ColorSpace.Linear && dstColorSpace == ColorSpace.sRGB)
{
return(srcColor.gamma);
}
else if (srcColorSpace == ColorSpace.Linear && dstColorSpace == ColorSpace.Linear)
{
return(srcColor);
}
else
{
throw new ArgumentException();
}
}
/// <summary> /// Texture2D から実際のバイト列を取得するデリゲート。 /// /// textureColorSpace は Texture2D をコピーする際に用いる。 /// Texture2D 単体では、色空間を知ることができないため。 /// 一般には、その Texture2D がアサインされる glTF のプロパティの仕様が定める色空間と一致する。 /// </summary> public delegate(byte[] bytes, string mime) GetBytesWithMimeFromTexture2D(Texture2D texture, ColorSpace textureColorSpace);
public (byte[] bytes, string mime) ExportBytesWithMime(Texture2D texture, ColorSpace textureColorSpace)
{
if (CanExportAsEditorAssetFile(texture) && TryGetBytesWithMime(texture, out byte[] bytes, out string mime))
static Color ToColor(JsonNode node, ColorSpace srcColorSpace, ColorSpace dstColorSpace)
{
return(node.ArrayItems().Select(x => x.GetSingle()).ToArray().ToColor4(srcColorSpace, dstColorSpace));
}
/// <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, ColorSpace textureColorSpace, ITextureSerializer textureSerializer)
{
var bytesWithMime = textureSerializer.ExportBytesWithMime(texture, textureColorSpace);
// 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.mime,
});
// 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);
}
public static float[] ToFloat4(this Color src, ColorSpace srcColorSpace, ColorSpace dstColorSpace)
{
var dst = src.ConvertColorSpace(srcColorSpace, dstColorSpace);
return(new float[] { dst.r, dst.g, dst.b, dst.a });
}
private static (byte[] bytes, string mime) CopyTextureAndGetBytesWithMime(Texture2D texture, ColorSpace colorSpace)
{
var copiedTex = TextureConverter.CopyTexture(texture, colorSpace, null);
var bytes = copiedTex.EncodeToPNG();
if (Application.isPlaying)
{
UnityEngine.Object.Destroy(copiedTex);
}
else
{
UnityEngine.Object.DestroyImmediate(copiedTex);
}
return(bytes, "image/png");
}