Difference in hammer vs compiled map

[Lopez]

Anyone know why this happens?

in hammer

Spoiler (click to show/hide)

vs in tf2

Spoiler (click to show/hide)

All of the vertices are lined up when viewed in hammer but get messed up when compiled.

I'm assuming its because I made that shape in some weird way that breaks hammer...I made that shape by shift-dragging the previous segment, doing a rotate transform, and lining up the edges with vertex edit. Once it was half done I selected all of it, did a 180 rotate transform, and used the vertex editor to line up edges as necessary.

Any tips on how I can fix the mess I made or re-do it properly would be much appreciated.

[RNC1839]

It looks like you have Concave angles. vmf's can handle them just fine but vbsp has concave intolerance and poops out this mess.

To fix them it's best to just cut the brush into 2 parts in the 'valley' of the angle.

[Lopez]

Seems strange that something would be possible within hammer but impossible once compiled.

Ill give it a try, thanks.

[plep]

Seems strange that something would be possible within hammer but impossible once compiled.

The way compiling tools understand the vmf is slightly different from what hammer is showing you. As RNC said, hammer can display crazy shapes (concave angles) but you can't get them compiled properly.

If you still don't understand: http://puu.sh/p71Vg/0611187b7b.jpg
This applies to all 3 dimensions, btw.

Another example: http://puu.sh/p726F/a965eba345.jpg