you might be able to do it faster in Maya for what you need and actually watch it update as yo do it.. use a plane with a lambert sahderbut fist press f8 on the keyboard and get to the paint effects canvas. hit new image and name it or get the res you want, 512 by 512?? hit the little camra on the tool panel for the canvas, wait.., i'll be back its easier to show you. or you could try and find an old WIP of mine called 'easy scene.' or something like that.