Jose Carlos Villena

I have an image with a written text, and I want that departing from an image in black, the image shows pixel to pixel,from the left side towards the right, as if the text was written.

to-show-pixel-to-pixel

you can also use jit.op and jit.rota, with a second matrix to reveal/show (technically it's multiplying and not "on top" of the other, but the effect is there). Easy enough to change direction of the "wipe" or orientation by using [scale] and offset_y instead of offset_x.

To show pixel to pixel