Meshlight partially in a transparent material

PureSpider · Post by **PureSpider** » Mon Jun 09, 2008 11:11 pm

Why? What if we need to do it?

Olis · Post by **Olis** » Tue Jun 10, 2008 12:07 am

OnoSendai wrote:Don't partially intersect mesh lights with media, it's not allowed in Indigo

But it worked for me. At least it looks like it.

CTZn · Post by **CTZn** » Tue Jun 10, 2008 2:00 am

PureSpider wrote:Why? What if we need to do it?

Then you can formulate a request

Cheers

PS: the way the cylinder is closed is ok as long as normals are set properly, like any other surface. In this case the resulting surface is forced to be planar (if the cut is straight) wich is good.

zsouthboy · Post by **zsouthboy** » Tue Jun 10, 2008 3:13 am

PureSpider wrote:Why? What if we need to do it?

It doesn't exist in real life - model your scene like it really exists and you won't have a problem.

PureSpider · Post by **PureSpider** » Tue Jun 10, 2008 3:19 am

Um... how to realize a light bulb half in water then?

zsouthboy · Post by **zsouthboy** » Tue Jun 10, 2008 3:45 am

EDIT:

Ono's information makes sense. As long as it's in ONE medium, you're fine.

Post by **OnoSendai** » Tue Jun 10, 2008 3:52 am

PureSpider wrote:Why? What if we need to do it?

The reason why is that Indigo needs to know what medium the ray starts in. This can be precomputed if the emitter lies only in one medium.

If you *need* to have the emittter in two media, you could split it into two.