@dashandslash, I only need 2D drawn triangles, I would like to keep it simple.
I have a VJ gig next saturday, so Iām trying the easiest method at the moment 
I made my own fork of the helpful Cinder-Warping block which I use all the time, I can use it by making rectangles and then drawSolidTriangle (with a fragment shader on the fbo) inside, but I have to handle the warps creation order to avoid overlapping.
I also tryed drawing triangles, now I have to code a structure of vertices.