Finally got normals working for the height map. Brad helped me a ton with the math, thanks brad :). After making sure I had the right points its was pretty simple. Here is an example to calculate normals for a grid in OpenFrameworks. Obviously this can be applied to any other language. The image above …

These are some terrain height maps built from NOAA’s Planetary Maps. The images are super high res about 2000×1500 pixels, the geometry is calculated and a display list is used for rendering. I think next im going to try and create a VBO out of the geometry so that I can alter the map in …