Modular brick building, how to texture correctly?

Sheers

Hey everyone,

So I'm trying to tackle an urban apocalypse environment, and I have my modeling shell and prop assets all assembled in UE4. They fit perfectly on the grid, and its a good modular set for my use.

My problem now is texturing. Before going all out, I made this texture sheet as practice before going crazy. The Concrete is 128x1024 and the brick fills the rest:



For some reason, no matter what I do with my UV's, the brick texture never lines up.






How do I UV Unwrap my assets so they are seamless when snapped together?

Thank you!

Finalhart

I recommend to use a nonsquare texture to make the tile in one axis, otherwise you will have seams in the engine and you will have to make some shader tricks to hide them.

nfrrtycmplx

Best thing to do is separate the concrete from the brick and map your brick walls 0-1 and set titling parameters on the material.

Alternatively, make sure your brick ends exactly on a width value divisible by power of two (2048 width image concrete is in by 256 pixel for instance)

this would put the brick at 0.125 in UV coordinate space on U. then set your vert positions explicitly to that. But then you're not accounting for mip mapping which can cause some issues when farther away from the object.

I'd keep my brick and concrete separate

nfrrtycmplx

alternatively, tile on the axis you'll be wanting them to match on. Splitting vertically a horizontally tiling piece is not helping.

Good luck!

clinington

Definitely split the concrete and brick, it's currently making it a much harder task than it should be.

EarthQuake

Yeah, it will cause a lot of problems in game too, to pack textures like this you need to add a lot of padding to make sure that the textures don't bleed together and cause seams when it mips. I would split them.

Sheers

I'll split the brick and concrete textures. Thanks a lot for your help guys!