[bzr] Light shines through doors
#17
Well it's the point of "can we SEE the light from position XYZ?" This isn't checked from the code and causes the light go "around corners" as well as making them shine right through doors.

The game code already contains code which can be able to perform almost realistic visibility check for light sources which can prevent light from going through doors (it can STILL affect the opposite side of the door the light is on, but not shine further - that's why I said *almost*) go "around corners". PARALLAX included this code in Descent 2 already but it never reached the release.
Point being that it's just too performance hungry and the implemented chaching function to reduce the performance needs does not work properly. Also as the whole lighting bases on Vertex-lighting, it does not prevent light from affecting joining sides of 2-dimensional walls such as doors. So the actual problem described here stays. And before I release any "more reaslistic" light code I want to cover this issue as well.

Of course today we could work without the caching and just swallow the additional CPU-cycles but it might influence embedded systems or very low-end systems (< 500Mhz) significantly. So I am probably going to include this code but not until I heavily optimized it.

Still it's probabyl too early to say too much about this. If I can add more realisitc light code without high demands that's fine. But if it triples the requirements of DXX-Rebirth just to prevent light from going through 2-dimensional planes then that's an issue I'll live with to assure low demands on low-end systems.
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Messages In This Thread
[bzr] Light shines through doors - by tryone - 05-05-2011, 04:51 PM
RE: Light shines through doors - by Ryusei117 - 05-05-2011, 05:01 PM
RE: Light shines through doors - by tryone - 05-06-2011, 01:24 PM
RE: Light shines through doors - by Ryusei117 - 05-06-2011, 08:57 PM
RE: Light shines through doors - by Hawkins - 05-06-2011, 09:02 PM
RE: Light shines through doors - by Ryusei117 - 05-06-2011, 09:29 PM
RE: Light shines through doors - by Ryusei117 - 05-06-2011, 09:58 PM
RE: [bzr] Light shines through doors - by tryone - 05-07-2011, 10:53 AM
RE: [bzr] Light shines through doors - by tryone - 05-31-2011, 07:04 PM
RE: [bzr] Light shines through doors - by Hawkins - 05-31-2011, 08:11 PM
RE: [bzr] Light shines through doors - by tryone - 06-13-2011, 02:25 PM
RE: [bzr] Light shines through doors - by Hawkins - 06-16-2011, 07:13 AM
RE: [bzr] Light shines through doors - by Hawkins - 06-16-2011, 09:27 PM
RE: [bzr] Light shines through doors - by Hawkins - 06-23-2011, 01:14 PM
RE: [bzr] Light shines through doors - by Hawkins - 06-23-2011, 01:20 PM
RE: [bzr] Light shines through doors - by Hawkins - 06-23-2011, 04:56 PM
Re: [bzr] Light shines through doors - by zico - 07-07-2011, 09:06 AM
Re: [bzr] Light shines through doors - by Hawkins - 07-07-2011, 10:10 AM
Re: [bzr] Light shines through doors - by zico - 07-07-2011, 10:11 AM
Re: [bzr] Light shines through doors - by lloyd - 05-30-2012, 09:48 PM
Re: [bzr] Light shines through doors - by zico - 05-30-2012, 09:58 PM
Re: [bzr] Light shines through doors - by lloyd - 05-30-2012, 11:50 PM
Re: [bzr] Light shines through doors - by zico - 05-31-2012, 08:59 AM
Re: [bzr] Light shines through doors - by lloyd - 05-31-2012, 05:31 PM
Re: [bzr] Light shines through doors - by zico - 05-31-2012, 06:53 PM
Re: [bzr] Light shines through doors - by lloyd - 05-31-2012, 07:22 PM
Re: [bzr] Light shines through doors - by Hawkins - 06-01-2012, 03:02 AM
Re: [bzr] Light shines through doors - by lloyd - 06-02-2012, 01:03 AM
RE: Light shines through doors - by zico - 05-05-2011, 06:06 PM
RE: Light shines through doors - by zico - 05-06-2011, 01:49 PM
RE: Light shines through doors - by zico - 05-06-2011, 09:36 PM
RE: [bzr] Light shines through doors - by zico - 06-01-2011, 02:40 PM
RE: [bzr] Light shines through doors - by Zealot - 06-06-2011, 08:32 PM
RE: [bzr] Light shines through doors - by zico - 06-06-2011, 08:45 PM
RE: [bzr] Light shines through doors - by Zealot - 06-07-2011, 06:00 AM
RE: [bzr] Light shines through doors - by zico - 06-07-2011, 07:52 AM
RE: [bzr] Light shines through doors - by Zealot - 06-07-2011, 09:44 AM
RE: [bzr] Light shines through doors - by zico - 06-07-2011, 09:59 AM
RE: [bzr] Light shines through doors - by zico - 06-16-2011, 06:58 AM
RE: [bzr] Light shines through doors - by zico - 06-16-2011, 07:20 AM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 10:10 AM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 10:39 AM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 11:05 AM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 12:22 PM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 12:42 PM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 01:12 PM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 01:25 PM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 01:45 PM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 02:07 PM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 02:45 PM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 04:59 PM
RE: [bzr] Light shines through doors - by zico - 06-23-2011, 06:12 PM

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