Indigo Renderer Forum

Hi guys... need a little help with RGB emitters.. It's been quite a while since I last used indigo.. and now with the 1.1.14.. I noticed that the settings for emitters have changed (for a very good reason i suppose).

I have no problems with blackbody emitters... however, RGB emitters seem to be a blur to me. How do I use an RGB emitter for.. let's say... a small glowing orange tint lightbulb?

I tried several settings.. I can't get it to glow.. err emit light.. please help. Thank you.

nevermind... i got it working.. cheers to 1.1.14! awesome stuff!

orange-tint lightbulb is supposed to be a blackbody, though

I'll take that as a fact. Thank you Although, I must say I successfully used an RGB emitter to my lightbulb.. it gave me a better result than using the blackbody..

However, now i'm a bit confused.. which type of objects do you apply RGB emitters with? what exactly is it for then?

Lightbulbs basically are nearly-blackbody-lights. Blackbody lights work with heat.
If you want to make a red, blue or green led, RGB would be ideal.

With blackbody lights, you can only cover a certain range of colours. With RGB lights, you can more or less use any colour...
For any heat light source or anything which could be approximated by heat-emission, I'd use blackbody but as soon as you've a different colour (say, green or, uh... pink? ^^) you'll have to use RGB.

A lightbulb has roughly 2700 K (usual household) to 3400 K (studio) as colour temperature...
It emits with 12-15 lm/W

A standard halogene-lamp reaches 25 lm/W at 3000 K, so it's more efficient and the emitted light is better.

Info from Wikipedia....
I hope that helped

great info! appreciate it alot! can't wait to give it a try.. Thank you!

Hopefully, this post continues to grow more.. it's amazing how much information one can get just by asking.. appreciate this alot! cheers!