I have some questions about tangents. As far as I’ve tested, having a model with tangents defined is required for proper rendering of materials having normal map assigned, am I right or are there some exceptions?
Being that the case, what’s the difference between TangentBinormalGenerator and MikktspaceTangentGenerator? Is any of them better or it just depends on the model, the format or the modeling software you’re using?
Does j3o format include tangents or should I generate tangents for all models on loading always?