Removing brush faces issue, rendering bug

Development Rendering
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1

Hi

(Question in recreated, I can’t change section, was not in bug report. Old post removed)

I read old thread about replacement of no_draw material for rendering optimization (to not render not visible faces) and I found solution - remove brush faces. Looks promising, brush is like this:

133322-remove-faces.png

But if it interacting with another brush, we have problem:

133323-remove-faces2.png

And this concerns only visible face, not whole brush:

133324-remove-faces3.png

Navigation can see change:

133325-remove-faces5.png

Is no problem with terrain

Steps to Reproduce:

  1. Open level the editor
  2. create box brush
  3. remove 3 adjacent to each other faces
  4. move this brush to overlap with another brush (in my sample is grass floor brush).

Result: overlapped brush is not rendered in editor and game from intersection lines. Moreover, invisible part is not solid.

Expected: overlapped brush should be rendered normally

2

Hey Vaheva,

What you are doing is creating a hole in the bsp and this generally isn’t good to leave a bsp like this. Even deleting 1 face is going to cause problems. If you want to optimize the best possible thing you can do is convert your BSP to a static mesh after you delete the faces you don’t want.

You will find the option to create a static mesh in the brush settings found in the details panel.

Cheers,

Ed