POM material

[RyanB]

@;315091

hi great stuff going on here.

I am combining with a texture bombing material that I converted from here http://http.developer.nvidia.com/GPUGems/gpugems_ch20.html. I have made to have an infinite non-repeating tiled texture.

The is when I rotate the UVs, the parallax uv offset offsets int he wrong directions. Just wondering which vector in the custom code I might have to transform.

I realise that is an expensive operation because I have to do 4 times for the texture bombing. But I wanted to try

You would need to replace the “world to tangent” transform with an “InverseTransformMatrix” node and supply the updated axes.

Instead of just using the tangent vectors, you would need to transform the tangent vectors into the rotated space. Or you could also try “rotating” the transformed cameravector around 0,0,0 (and remember to add back to the input “position” if not using in world position offset input which does not). Which is easier may depend on how you generate the rotated vectors in the first place. Is it some kind of pseudo random rotation vector thing?