Seeing through solid BSP walls in map

[mudcrab]

I'm having a problem where from the interior of my map the solid BSP walls flicker and I can see right through them. I also have terrain outside of the walls. Anyone know how to fix this?

[Odedge]

Flicker? The only 2 things I can think of is either your BSP has errors and causing the "hall of mirrors" effect or your are using a material that is transparent.

[mudcrab]

It's not the hall of mirrors. It's a normal material too, thats why I'm confused.

[azurescorch]

bsp nice and tidy? Nothing intesecting badly? Everything on the grid?

Tried to copy and paste the problematic section into a new file? (some times the problem isn't where the glitching is visibly).

[Odedge]

Can you post a screen shot as that would probably be worth a 1000 words.

[FragTastic]

having two brushes in the exact same place can cause this. try selecting the brush and hiding it in the editor. If It still shows a brush there, bingo youve found it. Select this brush and push ctrl+p this should make the builder brush match that brush (same location and size) Show all in the editor again (remove hide brush) delete all those brushes (duplicated ones) build bsp. Use the builder brush to make ya brush again. build bsp again. see if prob is fixed. As azurescorch said two additive or subtractive brushes overlapping can cause this prob as well.
Best of luck hope thats some help.

[mudcrab]

http://www.flickr.com/photos/57057925@N08/5337414820/

This picture is an example of whats happening (left picture).

I don't think the problem is duplicate brushes but thanks Fragtastic.

[Cr4zy]

Could you possibly post your editor viewports of the affected brushes?

Overlapping brushes shouldnt ever cause flickering like you get with meshes. BSP is built into once shape by the engine, So im not sure what it happening as a BSP hole shouldn't flicker either.

[Hayrack]

How large is the area of map? F.e. I made a testmap with huge terrain and 2 skydomes sorrounding it. At certain height above the terrain, skydome at the bottom of the map suddenly becomes invisible. Same with huge brushes that reaches borders of ''blue grid of the U world . Could be rendering limitation imo.

[Hayrack]

Flickering brush/disappearing skydome problem

1) Example map. It is HUUUUUGE:



2) At certain point skydome disappears:



3) You can compare:



4) If I make a very big brush and subtract it, his wall starts flickering as i move the camera. Rebuilding map doesn't fix it:



Solution:

Find the way to make sorroundings of playable area a bit smaller: reduce scale of skydome or brush.

Hope this helps