Relief mapping and Parallax mapping

[Mars_9999]

I have question on RM. I have looked at it a bit, and not 100% sure, but does RM modify the texture coords that you use to access your textures like parallax mapping does? Thanks

[M/\dm/\n]

Yes, but it calculates the right coordinate by doing intersections with depth map.

[Jan]

It does this by doing a search, meaning it accesses the depth-map multiple times to narrow down to the correct texture-coordinate. Depending on how many steps are used for the search, the result is more or less precise (and more or less slow to compute).

Jan.