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use less blocks. fill in detail block work with 'detail' flagged blocks, map entities and models. Don't use 'detail' flagged blocks except when they are layed on top of normal block surfaces.


Well, i don't know much about the detail flag, but i never use it.

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use that snap to grid and snap yoru blocks. but DON'T overlap/intersect them


I never overlap/intersect blocks

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don't leave gaps in your level blockwork that opens to the infinate engine level

I don't have gaps in my level to the engine (except that there is no roof, but that didn't ever matter (it has a topview camera)

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texture all surfaces that will NEVER been seen with a texture that has the NONE flag set

I will do that, but i don't think that has anything to do with this problem.

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DON'T use CGS subtract, always build blocks, never cut


I never use CSG substract, for that reason

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avoid multiple angled surfaces in a single block. as many of each block surfaces should be aligned ( and snapped) to the level grid) as possible


There are no multiple angled surfaces in a single block.

So, i still don't know how i can prevent this problem.
I want to use blocks, no models.

Thanks for your help

(maybe this will help : Picture)