#2232 already resolves the external buffers on the renderer side. We also need to handle the case where the external source is a GL texture, by either:
- having a dedicated FBO to attach to and read from, once per layer (!)
- adding
glGetTexImage support to gleam, then device.rs, and calling it
#2232 already resolves the external buffers on the renderer side. We also need to handle the case where the external source is a GL texture, by either:
glGetTexImagesupport togleam, thendevice.rs, and calling it