Exterior vs Interior Modularity Question!

wirrexx

Building and creating modular pieces is a task.. Which i enjoy. But my question is about the interior vs exterior part.

When doing exterior parts, i usually keep my "wall meshes" flat cause you want me entering the building! 
But if i do that with my interior (only interior) keep them flat instead of giving them thikness, i usually get lighting problem in UE 4 (back culling faces). 

Do you guys usually keep them flat or give them thikness! 

Eric Chadwick

Better to add thickness, if you're allowing people to go inside buildings.

If the extra backfaces are a rendering hog, set up culling volumes.

musashidan

Or you can set your materials as double sided or use a light blocker proxy plane. Or create your single sided walls back to back and add modular doorframe at openings to simulate thickness.

wirrexx

Thanks for the tips, never new about culling volumes and never heard about Light blocker proxy plane. Is the last mentioned just basically a plane with normals facing the other way to block out the light?

musashidan

wirrexx said: Is the last mentioned just basically a plane with normals facing the other way to block out the light?

Yes, it can be a useful technique, but the level could get messy pretty quickly if you have them everywhere.