Open
Description
The current approach of just following exactly all pipeline structures faces a problem with external OES textures: they are used on GL ES and Windows/Angle, so they are being read and saved. One can't just create an external texture and upload the data - this is not allowed. Thus, we are currently getting Angle errors on windows when loading those external textures in a capture.
What we can do is patch all the external textures and turn them into something else (default textures, or externals backed by buffers).