Meshlight partially in a transparent material

PureSpider · Post by **PureSpider** » Mon Jun 09, 2008 7:39 am

I've noticed that, if a meshlight is partially in a transparent, the part not in the material goes black, this happens in all versions of indigo i tried it... 1.0.9_2, 1.1.1 and 1.1.2
See the attached shot for details

Kram1032 · Post by **Kram1032** » Mon Jun 09, 2008 8:15 am

Is the transparent closed? (Not that it should affect the part outside

)
I guess, you checked the normals myriades of times?
Really strange bug...

PureSpider · Post by **PureSpider** » Mon Jun 09, 2008 8:40 am

Yes it is closed and yes, I did check the normals

Olis · Post by **Olis** » Mon Jun 09, 2008 9:35 am

I made this simple experiment in order to recreate the bug. Through the right sphere there is a meshlight cylinder and inside the left sphere there is a sphere meshlight for reference.

PureSpider · Post by **PureSpider** » Mon Jun 09, 2008 9:38 am

It's not always like that... normally meshlights partly in transparent mats work just fine, but not in that very special case (a ring in a ring, like it seems to be)... however I'll do that test, too

Olis · Post by **Olis** » Mon Jun 09, 2008 9:56 am

I made a scene similar to yours and it works perfectly.

PureSpider · Post by **PureSpider** » Mon Jun 09, 2008 10:05 am

Okay I dunno what's this all about, but I made another test and it's still f00ked up...
You can find the scene file here: €dited

€dit: What prog are you using? Maybe this is related to the Cindigo export instead of indigo itself?

Olis · Post by **Olis** » Mon Jun 09, 2008 10:07 am

What 3D package do you use? Blender?

PureSpider · Post by **PureSpider** » Mon Jun 09, 2008 10:08 am

Edited my previous post just the moment you posted... I'm using C4D

Olis · Post by **Olis** » Mon Jun 09, 2008 10:10 am

Look at my sign

Maybe you could export your scene to a .obj file or something so that I can look at it?

PureSpider · Post by **PureSpider** » Mon Jun 09, 2008 10:10 am

Look @ the link in my post above... There is the pigs file, just open that with Winzip/Winrar/similar to get the .obj's

Olis · Post by **Olis** » Mon Jun 09, 2008 10:25 am

I looked at the file and I didn't see anything other than that your outer torus is strangely closed.

PureSpider · Post by **PureSpider** » Mon Jun 09, 2008 10:30 am

That's the way C4D is doing it =/

Olis · Post by **Olis** » Mon Jun 09, 2008 11:00 am

But surely there must be a way to do it manually?

Post by **OnoSendai** » Mon Jun 09, 2008 3:06 pm

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

Meshlight partially in a transparent material

Meshlight partially in a transparent material

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