I'm tweaking the final patch in the video processing series AB put up a while back. I want to replace the first source of video from jit.qt.grab to another poly~ / umenu list, so that I can simply mix two different channels of footage as opposed to live feed / footage. However, this causes the p texture-conversion subpatch to get unhappy and it will only play one or the other. I have tried opening different video folders for each list - yet each time only one will play back, and the other will display a white screen. Maybe this is a simple answer for an OpenGL whiz...hoping you can check out the tutorial/patch and let me know what's going on.

https://cycling74.com/tutorials/the-video-processing-system-part-4/

I'm tweaking the final patch in the video processing series AB put up a while back.  I want to replace the first source of video from jit.qt.grab to another poly~ / umenu list, so that I can simply mix two different channels of footage as opposed to live feed / footage.  However, this causes the p texture-conversion subpatch to get unhappy and it will only play one or the other.  I have tried opening different video folders for each list - yet each time only one will play back, and the other will display a white screen.  Maybe this is a simple answer for an OpenGL whiz...hoping you can check out the tutorial/patch and let me know what's going on.

Replacing jit.qt.grab w/ poly~ list in VPS-4 tutorial