I’ve got a problem with an object in one level of my game.
The level has been completed about 1 year ago and everything worked fine. Today a loaded the level after some months to test changings in level difficulty set in the main menu when i noticed that a simple mesh is dark. I tried rebuilding lights and also reflections capture and resetting materials for that mesh but nothing…it remains black. I can add all meshes i want and it works but that mesh in the world doesn’t work. I tried copying it and the copy works fine! Why? I solved the problem just copying the mesh and deleting the previous one but i want to understand why.
Another question…why many times i load a new maps the shaders recompile?
Ok forget what i wrote in the previous post…i rebuild the lights after have duplicated the mesh but it become dark as the previous one.
Now the only thing i can notice is that initially this mesh was a brush that i converted in mesh…maybe something gone wrong during conversion? I have a lot of brushes converted and they all work fine.
Just because the map was put together doesn’t mean that the shaders are cached in your PC - they get dumped periodically even out of the shared cache folder. That’s probably why the engine will re-compile.
check the material. try using a different material on that mesh. worst comes to worse, replace the mesh… Simple export, load in blender, move a point by a millimiter, export - might actually fix it.
Could be the file in engine is corrupt or something equally silly.
For the shaders…so only on the final build for shipping the shaders are compiled permanently…i thought also on the editor!
For the material…seems i found the problem! When a brush is converted to mesh the lightmap resolution is set to 4…too little! Setting it to a bigger value (i used 512) solved the problem. Also the lightmap channel is set to 0 instead of 1 or another number. I noticed this because if i tried setting the mesh movable the texture is visible also after light building…so the problem is related to the lightmap. Tomorrow i’ll do better tests.