Multiplayer Map Causes Memory Leaks and Crashes

[ComicJam]

I created a net map that seems to be causing memory leaks, but only when it's played in multiplayer. It runs fine solo. It has a bunch of new textures in the merged file and has complex geometry. Everyone who has tried it crashes were during the first few minutes (they all had wildly different specs with a mix of with and without Steam). I did a test at home with two computers (one running via Steam and the other not). When the host was running without Steam, it crashed. I'm not sure if Steam is related.

When Ship Hits the Fan.sceA.zip

[Ezandora]

As pointed out by treellama in chat, this appears to be #182
To trigger it in single player, go to this location in the map, look in this direction, then shuffle around a bit:

That will cause RenderVisTreeClass::cast_render_ray() to infinitely loop, adding millions of objects to Nodes until all RAM is exhausted. One such loop is on polygon IDs 1403->1404->1405->1406->1403->1404->etc.

The engine just does not like all those super thin polygons to make the multi-story shipping containers. It looks neat though.

[ComicJam]

So, I fixed those 140X polygons and tried two 7 minute net games with no crashes.

My theory is problem was actually caused by Weland. I made that specific stack of containers using the grid rotation tool. I feel that the rounding in the "snap to grid" maths at that angle caused the ultra thin polygons to be "illegal" and overlap others. (If that makes any sense at all.)

Anyway, the new version I tested is attached.

EDIT: Spoke too soon. I just got another crash! XD
...and managed to replicate it 3 times by shooting automatic weapons (AR and Flamer) like a nutter in the indicated area. Sometimes it takes several clips.

When Ship Hits the Fan.sceA.zip