public static BytesWithMime GetBytesWithMime(this Texture texture, GLTFTextureType textureType, int mimeType = 0, int quality = 75, int width = 0, int height = 0)
{
var tex = texture.CopyTexture(textureType.GetColorSpace(), null, width, height);
var bytes = mimeType == 0 ? tex.EncodeToPNG() : tex.EncodeToJPG(quality);
if (Application.isEditor)
{
GameObject.DestroyImmediate(tex);
}
else
{
GameObject.Destroy(tex);
}
return(new BytesWithMime
{
bytes = bytes,
mime = mimeType == 0 ? "image/png" : "image/jpeg"
});
// #if UNITY_EDITOR
// var path = UnityPath.FromAsset(texture);
// if (path.isUnderAssetsFolder)
// {
// if (path.extension == ".png")
// {
// return new BytesWithMime
// {
// bytes = System.IO.File.ReadAllBytes(path.fullPath),
// mime = "image/png"
// };
// }
// }
// #endif
}
public static Texture2D Convert(Texture2D texture, GLTFTextureType textureType, ColorConversion colorConversion, Material convertMaterial)
{
var copyTexture = texture.CopyTexture(textureType.GetColorSpace(), convertMaterial);
if (colorConversion != null)
{
copyTexture.SetPixels32(copyTexture.GetPixels32().Select(x => colorConversion(x)).ToArray());
copyTexture.Apply();
}
copyTexture.name = texture.name;
return(copyTexture);
}
public static RenderTextureReadWrite GetColorSpace(this GLTFTextureType textureType)
{
switch (textureType)
{
case GLTFTextureType.Metallic:
case GLTFTextureType.Normal:
case GLTFTextureType.Occlusion:
return(RenderTextureReadWrite.Linear);
case GLTFTextureType.BaseColor:
case GLTFTextureType.Emissive:
return(RenderTextureReadWrite.sRGB);
default:
return(RenderTextureReadWrite.sRGB);
}
}
public static int ExportTexture(this GLTFRoot gltf, int bufferIndex, Texture texture, GLTFTextureType textureType, int mimeType = 0)
{
//var bytesWithMime = GetBytesWithMime(texture, textureType); ;
// add view
//var view = gltf.buffers[bufferIndex].Append(bytesWithMime.bytes, GLTFBufferTarget.NONE);
//var viewIndex = gltf.AddBufferView(view);
// add image
var imageIndex = gltf.images.Count;
var image = new GLTFImage
{
name = texture.name,
mimeType = mimeType == 0 ? "image/png" : "image/jpeg"
};
//bufferView = viewIndex,
image.uri = texture.name.ToLower() + image.GetExt().ToLower();
gltf.images.Add(image);
// add sampler
var samplerIndex = gltf.samplers.Count;
var sampler = texture.ToTextureSampler();
gltf.samplers.Add(sampler);
// add texture
gltf.textures.Add(new GLTFTexture
{
sampler = samplerIndex,
source = imageIndex,
});
return(imageIndex);
}
public TextureExportItem(Texture texture, GLTFTextureType textureType)
{
Texture = texture;
TextureType = textureType;
}
