Projector lights

[Grid Strom]

Does any one know if there are any primitive parameter constants for setting the Prim light projector image?

[Innula Zenovka]

Yep.

 

[ PRIM_POINT_LIGHT, integer boolean, vector color, float intensity, float radius, float falloff ] 

 

 

For example,

 

llSetPrimitiveParams([PRIM_POINT_LIGHT, TRUE, <1, 1, 1>, 1.0, 10.0, 0.75]);

 

 

[Cerise1488303085]

I think we are still missing levers for the focus, FOV and ambiance settings, textures too.

[leliel Mirihi]

 

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Innula Zenovka wrote:

Yep.

 

[ PRIM_POINT_LIGHT, integer boolean, vector color, float intensity, float radius, float falloff ]  

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Projectors are spot lights and they use a texture. That's just a plain old point light.

There are no LSL controls for projectors yet.

 

[Innula Zenovka]

I'm missing the point, then.   Do you mean something like a particle profile projector, or something made with semi-transparent cone coming out of it to simulate a beam of light coming out of a projector (like some lighthouses have) or is it something different?

[leliel Mirihi]

A picture is worth a thousand words.

[Cerise1488303085]

 

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Innula Zenovka wrote:

I'm missing the point, then.   Do you mean something like a particle profile projector, or something made with semi-transparent cone coming out of it to simulate a beam of light coming out of a projector (like some lighthouses have) or is it something different?

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With deferred rendering there is an extension to local lights, they can project textures onto surfaces. You can read a little bit about it here on the wiki.

 

[Innula Zenovka]

Thanks.  I hadn't seen that before, never having turned deferred rendering on.  I must have a play with it.

[Opensource Obscure]

FOR ENGLISH INSTRUCTIONS, TURN ON ANNOTATIONS IN YOUTUBE !

[Ember Ember]

Bumping this because it is 2020 and I'd like to know if Linden Lab has by now implemented a prim parameter for setting the Prim light projector image. I'm guessing by the looks of the wiki, they still haven't implemented anything but I just thought I'd ask because it would be really amazing if they did and just forgot to update the wiki. 😅

[Profaitchikenz Haiku]

No, it was mentioned here a few weeks ago as to why there was no way to set it other than the build floater.

[Ember Ember]

6 hours ago, Profaitchikenz Haiku said:

No, it was mentioned here a few weeks ago as to why there was no way to set it other than the build floater.

Do you have a link to that mention? I’m having trouble finding anything else about this topic on the forums.

[Profaitchikenz Haiku]

No, I don't, I have no other way of accessing past postings than the search. However, you could try searching for "projector" or "texture", since the item in question is the texture that can be assigned to the light on the particular build tab.

Try This thread

 

Edited December 2, 2020 by Profaitchikenz Haiku
Searching revealed, as it often does, the thread in question other than this particular one

[Ember Ember]

6 hours ago, Profaitchikenz Haiku said:

Try This thread

Thank you Profaitchikenz. That thread wasn't coming up for me in search no matter what I searched for ("projector", "projection", "projected", "projection texture"), so I really appreciate you linking it. This Jira request therein certainly makes me hopeful. ☺️  https://jira.secondlife.com/browse/BUG-6961 Thanks again!

[animats]

3 hours ago, Ember Ember said:

This Jira request therein certainly makes me hopeful. 

Check the date on it.

[Rolig Loon]

18 hours ago, animats said:

Check the date on it.

And note Rider's less than encouraging comment about how likely it is to be changed soon.

[Rachel1206]

6 hours ago, Rolig Loon said:

And note Rider's less than encouraging comment about how likely it is to be changed soon.

As in "Soon ©®[tm]" ! 😄

One way to change projected light texture is to use multiple prims and move and hide them behind the active prim. Or rather the only way, as how PRIM_POINT LIGHT is implemented.

Edited December 4, 2020 by Rachel1206

[Wulfie Reanimator]

23 minutes ago, Rachel1206 said:

As in "Soon ©®[tm]" ! 😄

One way to change projected light texture is to use multiple prims and move and hide them behind the active prim. Or rather the only way, as how PRIM_POINT LIGHT is implemented.

Downside to this is that if you don't have Advanced Lighting Model enabled, you just see multiple stacked point lights, which are proportionally brighter and probably ruining the immediate surroundings.

[Qie Niangao]

9 hours ago, Rachel1206 said:

One way to change projected light texture is to use multiple prims and move and hide them behind the active prim. Or rather the only way, as how PRIM_POINT LIGHT is implemented.

I don't think I understand this. Why not keep all the alternate-texture emitters at the same position and orientation, and just toggle PRIM_POINT_LIGHT so only one of them is TRUE at the same time?

(It's still a kludge, can't handle a new projected texture, and even marginally laggier than doing this properly as requested in the jira, but desperate times, etc.)

[Rachel1206]

1 hour ago, Qie Niangao said:

I don't think I understand this. Why not keep all the alternate-texture emitters at the same position and orientation, and just toggle PRIM_POINT_LIGHT so only one of them is TRUE at the same time?

(It's still a kludge, can't handle a new projected texture, and even marginally laggier than doing this properly as requested in the jira, but desperate times, etc.)

I observed, this could lead to a distortion of the light, but could have been my setup in world causing it. But why I swapped their positions like stacked cards. We are only talking 4 small phantom prims and it solved the problem with projected light and using different textures, while we wait for the update of prim params...

Edited December 4, 2020 by Rachel1206

[Clarity Toxx]

http://wiki.secondlife.com/wiki/PRIM_PROJECTOR

Well well well! Just noticed this. When's this going live? I have immediate uses for it. 😛

[Rolig Loon]

 

[Candide LeMay]

Next stretch goal: animated projector texture