Sometimes, on imported objects, though rare, when using the BGE in GLSL mode, the mesh I am working on will have crazy normal darkening/lighting on all or part of its faces. This always seems to be complicated meshes like characters,etc. Has anyone ran into this annoying render bug and solved it? Its driving me nuts!
I run it in the standalone player and it looks fine, apart from being shadeless. This ruins normal mapping and texturing. It happens occasionally when importing objects. Its so bizarre. In all my 11 years of Blending, its never done this before!
So, can anyone solve this normal issue?
It also sometimes shows it as shadeless, so its definitely a normal issue. But I dont want to redo vertex by vertex by hand!
EDIT: Found it!! Sometimes if the bone deform option is set to BGE it will somehow screw the lighting of the mesh up… setting it to Blender fixes this! Its already been solved by me!
Its a shading issue. Looks fine in viewport, but in game, the mesh lighting is all screwed. Some faces are lighter, others darker. Sometimes its just part, all, or just shadeless. It must be Blender trying to compute the lighting per vertex, and has got it wrong. No shaders, just regular GLSL materials.
The only thing I can think of is do you have a trasparacy shader in node window because I’ve notice that when you make a new texture it’ll have a trasparacy shader connected to the mix shader and I believe that the trasparacy shader when connected to the mix shader causes problems. If that doesn’t work then either try stack exchange or try to find the most recent file before that problem happened.
Have you try getting lighting add-ons or you could try getting an hdri add-on. A lot of them are free and might be able to make the game look better though I never tried making a game with it though.
Sometimes when i import models the normals are not facing the same x and y direction. I can recalculate the normals and they will all point the right way, but how i do it for the x and y beside taking every face and rotate it ? This caused me some problems when baking and in game, shading problems! Usually i remodel the whole thing ( to avoid other bugs from 3dsmax ). Remodeling it with a plane added in edit mode on that model will also face lot’s of problems, so i ad new face as object when remodeling it! I guess this is a 3dsmax bug ! Guess this happens in blender when you mirror in edit mode, but it does not affect the shading, still faces will not share the same x and y direction.
the only relevance the x and y on a face have is in the uv map. if you are actually talking about each face being an object, then you are doing it wrong.
honestly you just need to post a demo blend, any further speculation is just a waste of time.
Ok bro, a few days ago i had some problems with an imported model and i abandoned it. Next time i will post the blend and also a txt in it with what error’s me ! Usually i do things in my free time at night, and most of the time at the end of the day i’m tired. Fact is 99.99(9)% the time it’s my mistake ! anyway thank you for your kindness !
#edit:
BTW, if you have textures on the model and see black lines (some who looks like normal problems) then you got an problem with you uv island, put them to close together and you get gaps/black lines if you zoom in/out to far, only thing you can do here is, try to blur out those spots on the texture or redo the texture.
Apply rotation and scale, normals - reset vector first !!?! Then recalculate normals, when nothing else works try resetting vectors and then recalculate normals
anyway thank you for your kindness !