Hello to all.
I’m recently starting to learn how to use the engine to use ir for archviz. While developing a triplanar shader, I learnt about the dithered triplanar, that uses a single texture, with this video:
Since this solution reduces the number of samples, I thought it would be a good idea to add a bump, or parallax occlusion to the shader. It went very wrong at first, since the bump/parallax mapping was many times inverted. Nevertheless I insisted on the idea and fixed most of it with the corrections shown on this video from 02:30 to 10:00 (kind of a flipping of the projections):
Anyway, everything is almost right, despite half of the Z projection on both top and bottom sides (the mapping is concave, while it should be convex on the red area):
Everything is pretty much right, even the other half of the Z projection:
Im going nuts trying to fix this, but I cant seem to find a solution. I’m pretty shure there’s a way to fix that, and that this solution would be usefull for many people who try to archive this parallaxed 3 plannar projection. I will post here the UV section of the blueprint if anyone wants to try the same solution (please don’t mind the portuguese comments).
Believe it or not, you can simply plug the UV output from this into the bump or parralax occlusion node and it will work almost fine.