Hi - I'm trying to composite two videoplanes in jitter with chromakey, but I'm getting a stack underflow error:
jit.gl.texture: error disabling transform: GL Error: Stack underflow
I followed the chromakey example in Jitter (#10), and already had a working patch with blending of alpha video and the videoplane, but I can't get it working with a selectable chromakey. I feel like there must be something small I'm missing. I've attached my patch. If anybody knows what I'm doing wrong, I'd love the help.
The first (left) videoplane is pulled in from openFrameworks with syphon