Notice about GZDoom builds and dynamic lights

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Enjay
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Notice about GZDoom builds and dynamic lights

Post by Enjay » Sun Mar 04, 2012 16:37

The following issue has now been resolved and current builds of GZDoom are free from both the crashing problem described and the anomalies with the dynamic lights because the workaround is no longer required.



Old news:
Please be aware that there is a known bug with current GZDoom builds that can cause a crash under certain circumstances. Specifically, if there is an object on a map that changes state in the first tic of gameplay and the object has a dynamic light associated with it, the game will crash.

This is a fairly rare occurence but it can be seen on MAP40 of Hexen. There are some switchable decorations (flame effects in the fire pits within the level) that are set to be dormant in the map editor. These spawn and then immediately change state to their dormant form causing a crash.

The crash only happens when dynamic lights are used so it can be avoided by playing the game without lights.pk3 loaded.

There have been attempts made to provide a temporary workaround for the crash but these had some undesirable visual side effects. However, if you want to use a relatively recent build that avoids the crash, r1298 has the workaround. Please be aware though, you are likely to see some unusual patterns of light where dynamic lights are used on a level. Builds from r1299(1300) revert the workaround so lights look fine but the potential for this rare crash is back.

The bug will be properly addressed in the fullness of time.

If you wish to find out more, the bug is being discussed in this thread. http://forum.drdteam.org/viewtopic.php?f=24&t=5633

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Rachael
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Re: Notice about GZDoom builds and dynamic lights

Post by Rachael » Sun Mar 04, 2012 18:51

Thanks for letting us know, Enjay! :)
Spoiler: Zen Sarcasm

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Gez
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Re: Notice about GZDoom builds and dynamic lights

Post by Gez » Thu Mar 08, 2012 20:41

Problem fixed, by the way.

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Enjay
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Re: Notice about GZDoom builds and dynamic lights

Post by Enjay » Sat Mar 10, 2012 1:11

Ah yes, thanks for the reminder. I'll edit the news post to reflect this.

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