Why is it so suddenly black
Why is it so suddenly black
I don't know how to solve it
Re: Why is it so suddenly black
assign different shader on material and check whether something changes or not. Also, assign any original game's texture instead of your own texture on material (may be the texture file is bad). other than that, per-vertex normals and tangents could be the problem, but I see the model is still shaded properly in ZModeler with highlights/shadows in proper areas of surface.
Re: Why is it so suddenly black
also, the burn texture map is applied with respect to model's UV mapping on channel #1 if I'm not mistaken (the one with dirt-scratch texture map).
the level of burnt texture is controlled by per-vertex blue channel, so you should probably paint per-vertex blue channel to bright (blue=200...255) where you want burnt effect to be stronger and paint to dark (blue = 0..40) where you don't want paint to have burnt effect or have a tiny burnt color effect.
the level of burnt texture is controlled by per-vertex blue channel, so you should probably paint per-vertex blue channel to bright (blue=200...255) where you want burnt effect to be stronger and paint to dark (blue = 0..40) where you don't want paint to have burnt effect or have a tiny burnt color effect.