[ deng-Bugs-2855092 ] HeXen: Herisarch's mana cubes

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Bugs item #2855092, was opened at 2009-09-09 10:19
Message generated for change (Settings changed) made by danij
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Category: Graphics
Group: v1.9.0-beta6
Status: Open
Resolution: Fixed
>Priority: 5
Private: No
Submitted By: Vermil (vermil)
Assigned to: Daniel Swanson (danij)
Summary: HeXen: Herisarch's mana cubes

Initial Comment:
In Beta6.6, the Heresiarch’s mana cubes randomly disappear and re-appear, either individually or all at once.

Apologies for the vague description, but I could see any obvious pattern to their disappearing/reappearing.


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Comment By: Daniel Swanson (danij)
Date: 2009-11-08 19:16

Message:
Fixed for 1.9.0-beta6.8

The problem was that after spawning the cubes their position was never
again set. Therefore they were still linked to the sector in which they had
spawned.

I'm currently looking for any other instances of a similar nature...

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Comment By: Daniel Swanson (danij)
Date: 2009-11-08 18:25

Message:
The reason the cubes are occluded but the spinning balls and the Heresiarch
itself are not is because they are in fact linked to entirely different
subsectors!

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Comment By: Daniel Swanson (danij)
Date: 2009-11-08 18:03

Message:
The reason why only the cubes are occluded yet the spinning balls are not
continues to allude me.

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Comment By: Daniel Swanson (danij)
Date: 2009-11-08 17:36

Message:
I was incorrect in my earlier comment, it is not the segs of the linedef
behind the viewer causing these sprites to be clipped. The problem appears
to be caused by the ranges added for segs either in the same subsector or
further up the BSP tree.

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Comment By: Daniel Swanson (danij)
Date: 2009-11-08 14:19

Message:
I've done some investigation into this problem and it appears this is
merely a symptom of larger problem which as yet I've been unable to
resolve.

How to recreate:
Start jHexen, MAP01
Open the console and enter:
spawnmobj SORCBOSS -2867 -552 floor; god; makecam 0;
move the player to open area in the south west corner of the map where the
polyobjects are in the archived map. In this area should now be
Heresiarch.

Now, position the player between the Heresiarch and either the north>south
or south>north linedefs on the east or west of this area. You should notice
that depending on where the player is in this area and the view angle
difference between this linedefs will determine whether the mana cubes are
visible or not.

The mana cubes are being clipped as a result of drawing the linedef behind
the camera C_AddViewRelSeg in rend_main.c: Rend_RenderSubsector

This would indicate that the test in Rend_MarkSegsFacingFront is
determining incorrectly that the segs of this linedef are front facing.

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Comment By: Vermil (vermil)
Date: 2009-09-09 10:20

Message:
I meant "couldn't" instead of "could" above.

----------------------------------------------------------------------

You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=542099&aid=2855092&group_id=74815

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