cluster portal saw into cluster

my map has 3 lines saying Warning: Cluster portal saw into cluster.

This map does work but i dont want any problems with my final product.

Due to previous experience i THINK it has to do with bsp brushes overlapping, but i still dont know how to find the problem. When it first occured to me it was a giant brush sticking out of nowhere and that was simple do fix. I heard of something called glview, and that it could be used to find the source of the problem, but I don't know how to use glview let alone enable it. Anyone have any tips on how to find the problem?

It means that there is a convex vis leaf that can see into its self
(nothing in hammer can be convex), I do believe it is caused by over
lapping brushes, but how to find them I can't say.

http://www.interlopers.net/errors/errors.php#2-1

The tut said to check for over lapping bruses, and if that didnt work,
then use mat_leafvis 1 to try to find the convex vis leaf in the game,
then check brush work around that area for overlaps.

edit: although all in all I dont think it will affect the overall
performance of your map, it will just increase compile times and you
may see a hop in the budget window of world brushes. But I dont think
it will affect your map tooo much.

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Posting And You

Ok thanks omegaslayer.

I havn't fixed the problem yet but i understand how to. Its a matter of time.

But one thing I still need is to know how to run GLview. How do you do it?

Here is the story: Im having the same problem also! I was getting
around 6-7 "Warning: Cluster portal saw into cluster" in the vis stage.
Then after reading about it, I went into the game and loaded the map. I
turned on mat_leafvis 1 on and just flew every where. Checking out the
vis leafs. I looked for some funky/complex vis leafs. And sure enough I
found them, they were in two spots, but the main one was here: (it may
be a little big)



The walls were causing the wierd errors, so I turned them into
func_detail (and put the nodraw texture behing them) and now when I run
it on vis, the errors are gone!

So the moral is, use mat_leafvis 1 and find complex vis leafs, then fix
them using hint brushes and turning the complicated brushes into
func_detail.

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Posting And You

did your walls have a bsp or something behind them? Are detail brushes allowed to be used as the barrier between map and the void? Detail brushes dont count as a pure rugged bsp so you probably just masked the problem.

I got rid of 2 of the 3 errors by changing my room from trapazoid shape to rectangle shape. But my whole map is full of trapezoid rooms, so i dont understand what makes this room different. I think carving brushes may just be what causes these problems.

No I had put some regular brushes behind those func_details (covered in
the nodraw texture) because func_detail (like func_wall) dont separate
it from the void (in other words they will cause leaks). But if you
turn the complicated brush work into func_detail (but still have solid bsp behing it), it makes the vis
program happy! Think about it, square vis leafs are going to be esier
to calculate than trapeziods.

But as for the carving I think thats your problem there, maybe post some screen shots of these rooms your talking about.

PS: if you dont know anything im talking about (like whats a vis leaf) just ask :wink:

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Posting And You

i understand you, yes cubes probably are easier. My trapezoid rooms are patent. you will see them when I complete the level segment and post em up!

Im good at mapping but im a little sloppy at times.