Normal Map shading problems

[EsKophan]

@prog

You should split sharp edges as there is no such a thing like having two normals per single vertex in OpenGL. In blender just mark them as sharp and as seams and then at export apply Edge Split modifier. By export I mean making a copy of a blend file where one could safely prepare a model to being loaded by JME and don’t turn future changes to said model into a mess at the same time.

I should have mentioned that I need correct normal map shading without split/smooth groups. Only fully-smoothed geometry + normal map.

Also:

1. Split groups/Smooth groups can be used in really rare situations, where normalmaps are not necessary.
2. Real split make vertexcount grow
3. It require different UV layout, not handy in some cases
4. Splitgroups is wrong choice for edges more than 90 degrees.

And yes, again, splitgroups in our case - is a terrible way around the real shading problem in JME.

@prog

BTW, I’m slowly working on plugin for blender that helps preparing model for being imported by JME, it’s based mostly around baking animations but it looks like now I have another point for checklist - to check if there are sharp edges in model and to offer to split them.

Wow this is interesting! keep going!