Im new to UE4 and i have been trying to build a room. I have successfully managed to import walls and a floor mesh into UE4 from C4D.
The problem is that I get these weird huge triangle shadows (seems to me on the lower right corner of any surface) when I add a light bulb in the room.
If I increase the radius of the bulb the triangles change sizes, but i don’t understand why they would be there…
Any idea on how to fix that?
Thanks for your reply
I dont know what a baked or dynamic light is. In that case i was only using a lightbulb and a directional light. I did, however, raise the lightmap resolution on the meshes and it improved a lot!
Would you mind posting the average values in general for those parameters? I raised it to 64 but i’m not sure how high i can go (considering Ill only render an apartment)
Lightmap resolutions are meant to be used in power of 2 (ie. 64, 128, 256, etc). Think of these like you would normal textures you would apply to your mesh. While you can use values other than power of 2 I wouldn’t recommend it.
Also, while you can increase the Lightmap Resolution to get better quality shadows, there needs to be a balance between the value you use and maximizing the space in the UVs 0,1 space. For this reason, thinking modularly or at least in breaking your mesh up into separate pieces that are placed in your level would give you much better results with lower lightmap resolutions.
I would recommend the following documentation as a good starting point for understanding some of the key concepts and working with Unreal Engine.