I’m trying to make a shader that takes data from the motion tracker and creates the effect of writing on the screen.
So far I’ve been able to take the motion tracking data and transform it into coords the shader can use, I now have a little box around the tracked coords (it doesn’t look like much but I’m very proud of getting this far :)).
But in order to make it appear as though you are writing on the screen the box has so be drawn on each coord were the tracked object has been as well as where it is at the moment. The most logical thing I could think of was feeding the coords to a spread but is it possible to feed that spread to the shader?
Or am I wrong with my spread idea and should I take a different route entirely?