currently my elevation mapping demo takes a heightmap (8bit) and renders in increasing z-direction. Now I want to render it from a side (let’s say increasing y-direction). Is there a way to change the heightmap (level information) using (extended) OpenGL so that it represents the elevation in that direction?
Well, you misunderstood my question (or it was not written clear enough). Having a heightmap with a white square in the middle (that’s the z-case) I want to have the heightmap converted into one which has a white ‘band’ when rendering the y-slice stack. Hope my problem is clearer now!