I've been trying to use subtextures to extract seven 48pixel wide strips from a photo or video and then composite them together into one new texture. I've looked at the examples but can't make it work with multiple subtextures for each video frame - only one subtexture strip will update in the resulting composite texture. Is there some trick I'm missing?

It does, however, work as expected if, instead of compositing multiple subtextures to one large texture, I send each subtexture to it's own independent jit.gl.cornerpin object.

GL: Extracting and compositing subtextures