Very good, I have spent quite a lot of time trying to figure out what the default font(sign layout) is like, but have not yet found the texture/bitmap file for it. I do have reason to guess based on my own experimentation so far that it probably isn't power of 2. Your idea of using blender's uv-color-grid to debug it was a very clever idea, not sure why I didn't think of doing that myself!As for the vertex shader/vertex coordinate bit, you could input a vector uniform that you overwrite with a script(getting the node size) then doing the scaling calculation in the vertex shader and send the result through say the Var1 output to the fragment program and use it as your custom coordinate system for the fragment program/shader. :)Anyways awesome video and thanks for sharing! :)
