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[REQ] Invisible Mesh Light Emitters
Posted: Fri Aug 25, 2006 1:40 am
by Zom-B
It would be great if it would be possible to swith visibility of Mesh Light for the rendering on & off,
So there would be more flexibility to light up a Scene with more Light "from nowhere".
Posted: Sat Sep 16, 2006 2:52 am
by okazaky
Yes, would be really nice
Moreover it would be cool to get more options for light emitters which could help to adjust brightness and fallof.
Posted: Thu Sep 20, 2007 4:22 am
by mcgrathfx
Hi,
Just a noob question - has this (invisible mesh light) or an equivalent been implemented yet? I searched the forums and perused the Manual but couldn't find an answer. I need a sperical or point light that illuminates yet is invisible in the render. Using Blender 2.44 and Indigo 0.8. Thanks
Posted: Thu Sep 20, 2007 4:26 am
by suvakas
Nope, it's not implemented.
Can't do it at the moment.
Posted: Thu Sep 20, 2007 4:27 am
by OnoSendai
No, it hasn't been implemented.
Posted: Thu Sep 20, 2007 4:29 am
by mcgrathfx
Thanks for the quick reply - OK then, I'll have to get creative!
Posted: Thu Sep 20, 2007 6:48 am
by Kram1032
simply make a hipoly sphere (I *think*, a primitive wont work... dunno....) and decrease it's size close to zero -> sphereal close-too-point light source^^
Posted: Thu Sep 20, 2007 9:04 am
by mcgrathfx
Kram,
You must be reading my mind - this is exactly what I was going to try (getting creative) when I got home tonight! Although a larger sphere would probably give me the soft shadows I need but I'll experiment with it. Thanks again.
Posted: Thu Sep 20, 2007 11:20 am
by CoolColJ
will null material do the same?
Posted: Thu Sep 20, 2007 3:32 pm
by mcgrathfx
CoolColJ,
Hmmm......interesting thought - I'll have to give this a try as well.
Thanks.
Posted: Fri Sep 21, 2007 1:03 am
by Kram1032
wont work, I bet, as every light gets a dummy mat, 0 0 0 black diffuse.....
Posted: Fri Sep 21, 2007 1:39 am
by zsouthboy
Uh - null material is just that - null.
it won't appear in the render, and it won't affect the scene in any way.
Posted: Fri Sep 21, 2007 6:36 am
by Kram1032
yes, but lights in any case simply get a black diffuse material, no matter, what you give them. Even with a null.
the difference is, that the light doesn't simply goes through the lamp (which actually wouldn't be quite realistic), but the ray gets killed, as soon, as it hits the lamp (which also isn't realistic, on one hand, but you wouldn't see the caustics from a light source, anyway, on the other hand, and by immediately killing the ray, you get faster rendering