Second Life Forums Archive - Lighting funny?

si Money

The nice demon.

Join date: 21 May 2003

Posts: 477

08-09-2003 14:11

Has anyone else noticed that light objects seem to actually cast light when you move/edit them, but as soon as you stop editing them (or someone else does) they fade out?

Just a strange observation i've noticed for some time, wondering if it's a driver thing or if it's a game thing.

Darwin Appleby

I Was Beaten With Satan

Join date: 14 Mar 2003

Posts: 2,779

08-09-2003 14:15

It's on purpose, no worries

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Touche.

Grim Lupis

Dark Wolf

Join date: 11 Jul 2003

Posts: 762

08-09-2003 21:34

Is it just me, or does anyone else find this more-or-less defeats the purpose of having lights in the first place?

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Grim

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Dave Zeeman

Master Procrastinator

Join date: 28 Jan 2003

Posts: 1,025

08-09-2003 21:43

I still don't understand the point of moving vs. not moving, and why bother having the "show light" preference, etc. etc. yada yada...

But whatever...

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Neo Valen

Registered User

Join date: 29 Jan 2003

Posts: 228

08-09-2003 23:44

I agree with dave

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Christopher Omega

Oxymoron

Join date: 28 Mar 2003

Posts: 1,828

08-09-2003 23:54

well, you could spin the said light, with llTargetOmega to make it glow indefinitely. The reason for the death of the glow after edit is probobally becasuse you dont have Local Lighting turned on in your display prefs.

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si Money

The nice demon.

Join date: 21 May 2003

Posts: 477

08-10-2003 00:12

Actually, it does it because of local lighting. If you turn local lighting off, this phenomena doesn't occur because there is never a light there, even when moved around.

Grim Lupis

Dark Wolf

Join date: 11 Jul 2003

Posts: 762

08-10-2003 08:52

OK, I just tested various things, and it seems to be a (rather weird) combination of things.

If you have local lighting turned on, you actually get some light from the object. The light gets brighter when moving the object.

With local lighting turned off, you still get the bright light when moving the object, but you get no light at all when not moving it.

I can't tell whether "lighting trees" does anything, or rather, I can't tell what it does.

Chris, the llTargetOmega thing didn't work for my test object.

llSetPos() on a timer doesn't do it, either. Haven't tested llMoveToTarget, yet.

Unfortunately, it's still somewhat pointless to use lights, anyway, because local lighting is off by default. The only people that will ever see the light are those that change their display preferences to turn local lighting on. (Or those that are standing there while you're moving the object around, which is pointless.)

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Grim

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Doug Linden

Linden Lab Developer

Join date: 27 Nov 2002

Posts: 179

08-10-2003 21:44

Actually, the lighting code is actually somewhat broken at the moment... The actual intention is that there be no lighting for any objects but the sun when "local lighting" is turned off, but some of the logic in there is pretty complicated. I guess I missed one case where moving objects use lighting, and I just haven't gotten around to fixing it...

Hopefully I'll have some time to take a look at the lighting code again before the next major release comes out... As it is, right now local lighting is too slow (AND broken), which is why it's off by default..

- Doug

James Miller

Village Idiot

Join date: 9 Jan 2003

Posts: 1,500

08-12-2003 10:19

Why don't we just create objects that have scripts to slightly move constantly when you want them on, and to not move at all when you want them off?

Nergal Fallingbridge

meep.

Join date: 26 Jun 2003

Posts: 677

08-12-2003 10:43

After seeing this thread, I turned on local lighting to see what it's like. It's kind of neat to actually see halos around streetlights. Unfortunately, I also noticed something weird. Objects with text floating above them have a huge invisible halo above them that blocks out the text unless I turn to the side. This also holds true for avatars -- I get a circular bit taken out of their names.

Is this my computer, my retinas

, or is this an actual side effect that's part of the brokenness previously mentioned?

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Lighting funny?
si Money The nice demon. Join date: 21 May 2003 Posts: 477	08-09-2003 14:11 Has anyone else noticed that light objects seem to actually cast light when you move/edit them, but as soon as you stop editing them (or someone else does) they fade out? Just a strange observation i've noticed for some time, wondering if it's a driver thing or if it's a game thing.
Darwin Appleby I Was Beaten With Satan Join date: 14 Mar 2003 Posts: 2,779	08-09-2003 14:15 It's on purpose, no worries _____________________ Touche.
Grim Lupis Dark Wolf Join date: 11 Jul 2003 Posts: 762	08-09-2003 21:34 Is it just me, or does anyone else find this more-or-less defeats the purpose of having lights in the first place? _____________________ Grim "God only made a few perfect heads, the rest of them he put hair on." -- Unknown
Dave Zeeman Master Procrastinator Join date: 28 Jan 2003 Posts: 1,025	08-09-2003 21:43 I still don't understand the point of moving vs. not moving, and why bother having the "show light" preference, etc. etc. yada yada... But whatever... _____________________ llToggleDaveZeemanIntelligence(FALSE); Philip Linden: Zeeman, strip off the suit! Dave Zeeman - Keeping Lindens on their toes since v0.3.2!
Neo Valen Registered User Join date: 29 Jan 2003 Posts: 228	08-09-2003 23:44 I agree with dave _____________________ Who Are THEY Anyways?
Christopher Omega Oxymoron Join date: 28 Mar 2003 Posts: 1,828	08-09-2003 23:54 well, you could spin the said light, with llTargetOmega to make it glow indefinitely. The reason for the death of the glow after edit is probobally becasuse you dont have Local Lighting turned on in your display prefs. _____________________ October 3rd is the Day Against DRM (Digital Restrictions Management), learn more at http://www.defectivebydesign.org/what_is_drm
si Money The nice demon. Join date: 21 May 2003 Posts: 477	08-10-2003 00:12 Actually, it does it because of local lighting. If you turn local lighting off, this phenomena doesn't occur because there is never a light there, even when moved around.
Grim Lupis Dark Wolf Join date: 11 Jul 2003 Posts: 762	08-10-2003 08:52 OK, I just tested various things, and it seems to be a (rather weird) combination of things. If you have local lighting turned on, you actually get some light from the object. The light gets brighter when moving the object. With local lighting turned off, you still get the bright light when moving the object, but you get no light at all when not moving it. I can't tell whether "lighting trees" does anything, or rather, I can't tell what it does. Chris, the llTargetOmega thing didn't work for my test object. llSetPos() on a timer doesn't do it, either. Haven't tested llMoveToTarget, yet. Unfortunately, it's still somewhat pointless to use lights, anyway, because local lighting is off by default. The only people that will ever see the light are those that change their display preferences to turn local lighting on. (Or those that are standing there while you're moving the object around, which is pointless.) _____________________ Grim "God only made a few perfect heads, the rest of them he put hair on." -- Unknown
Doug Linden Linden Lab Developer Join date: 27 Nov 2002 Posts: 179	08-10-2003 21:44 Actually, the lighting code is actually somewhat broken at the moment... The actual intention is that there be no lighting for any objects but the sun when "local lighting" is turned off, but some of the logic in there is pretty complicated. I guess I missed one case where moving objects use lighting, and I just haven't gotten around to fixing it... Hopefully I'll have some time to take a look at the lighting code again before the next major release comes out... As it is, right now local lighting is too slow (AND broken), which is why it's off by default.. - Doug
James Miller Village Idiot Join date: 9 Jan 2003 Posts: 1,500	08-12-2003 10:19 Why don't we just create objects that have scripts to slightly move constantly when you want them on, and to not move at all when you want them off?
Nergal Fallingbridge meep. Join date: 26 Jun 2003 Posts: 677	08-12-2003 10:43 After seeing this thread, I turned on local lighting to see what it's like. It's kind of neat to actually see halos around streetlights. Unfortunately, I also noticed something weird. Objects with text floating above them have a huge invisible halo above them that blocks out the text unless I turn to the side. This also holds true for avatars -- I get a circular bit taken out of their names. Is this my computer, my retinas , or is this an actual side effect that's part of the brokenness previously mentioned? _____________________ powered by caffeine since 1998! "In such ugly times, the only true protest is beauty." -- Phil Ochs

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Lighting funny?