Fewer brushes vs. larger "nodraw" area?

[Doran]

this one's confused me a bit, but when you're creating a map is it better to have 1 brush with parts of the texture concealed by walls, or 3 brushes with a nodraw area behind the concealing wall with two textured brushes to either side?

black = nodraw texture, red = 'normal' texture (assume top down view)

 

[DJive]

I'd love to help on this, but for some reason *maybe my own* i can't seem to get what you mean. Whats the "green" for in the E? walls or hallway and "white" is wall area?

Picture 2 is better for displacements and allows better editing later if need be.

 

[Jive Turkey]

I'm not sure what you mean, but for what it's worth world brush sides completely covered by other world brush sides, such as a mitered corner between two walls, automatically get nodrawwed.

If I'm reading that picture correctly, it doesn't matter which way you build the brush work. The first picture will end up cut up like the second picture by the compile tools.

 

[Doran]

you answered my question already, the green part was just supposed to distinguish between blocks / nonblocks. Also, thanks for the link, rather interesting.