jartz opened this issue on Mar 10, 2019 ยท 88 posts
SamTherapy posted Thu, 14 March 2019 at 2:52 PM Online Now!
Once more, with feeling...
You absolutely_ cannot _make a valid bump map from a desaturated diffuse map. So it follows that if you then make a normal map from that, it will be wrong.
Don't simply take my word for it; you can either see for yourself that the raised and indented areas correspond to colour, which is nothing to do with the underlying texture. Any areas that look correct are more down to happy coincidence than anything else.
If that ain't good enough for you, search out older threads on the subject, particularly BagginsBill's comments about it.
So there.
Coppula eam se non posit acceptera jocularum.