hi everybody. i'm working on a teleprompter, that would show words and have them go from white to yellow, indicating the tempo to read them. I started working with jit.gl.text. The basic idea was to just put two jit.gl.text on top of each other. the upper one would "unroll" from fully cropped to uncropped. But I can't seem to find any way to crop a jit.gl. Neither can I find a way to crop a jit.matrix. It would mean to erase the cells or setting the alpha channel to transparent? Does anyone have hints on that? Thanks so much in advance!