Lights that really give off light ?

How do you script a light that actually increases the light in the surrounding area? Like if you have a dary room and want to lighten it up ?

that is a very good question, i will be waiting for an answer to that one, i am intrested in that my self.

In your preferences in Secondlife graphics, have to have local lighting on.

Then when you edit an object, and in the Object tab change the material to LIGHT..

Warning, Local light in SL is 100% cpu based, so it will slow you down (FPS Hit)..

If you just want bright, without casting light, then in the texure tab when editing is Full bright (does not cast light, but as bright as a light object, so no lag).

As an alternative to 'real' lighting, I've seen some developers use what I assume is some kind of sensor to change an object's base colour ie. if a specific object or avatar is sensed then the base colour is ramped from near black to near white. As the colour moves toward white, the object's texture becomes visible simulating 'light'. This can be seen especially well in the caves and vault in Numbakulla. If you need a demo IM me in world.

As Michael said, you must have your local lighting turned on. However, it does not seem to get the same results on all PC's. When using my laptop, I cannot see the local lighting at all it seems. But when I use my desktop, SL is more enjoyable and I can see the lighting. So results will vary depending on your system specs.

Out of interest, I started a poll on who has local lighting on regularly...

/108/5e/89872/1.html

My personal experience is that enabling local lighting can be nice in a properly configured area, but too often causes my FPS to drop to 3 because some fool added a couple of lights to an item, or made a giant lightsource that screws up lighting for hundreds of metres, or that items will glow for no reason.

Now the only time I ever enable it is if I am taking photos in a sky-studio and want to light the avatar.

for building, I use prims with transparent textures designed to simulate static lighting and shadows. That way everyone sees the effect and the performance hit for using a few transparent textures is trivial compared to the implementation of local lighting in SL.

Well there seems to be something else besides the local lighting selection. I have mine turned off and things such as slboutiques Old Style Street lamp and the little solar lights from the Home Depot all still cast light.

I think they use particles with the glow effect on. It *shouldn't* work without local lighting on, but it seems to. It might also be an optical illusion, you see a brighter light source so you imagine seeing other things brighter too.

You can also use an almost transparent phantom prim (like a globe or cone of glow), but that will interfere with the ability to touch things and is not always a realistic effect. It works fine for spotlights.

also are you thinking of stationary particles to add a "glow" to a prim? That's quite effective, and though it doesn't make other prims light up . . . if you texture properly it looks awesome.

I use transparent colored prims to cast streetlight glows and I'm starting to dabble with textures that have highlighted and shaded parts to also increase that illussion... everyone (local lighting or not) should be able to enjoy those effects - local lighting or not.