[jvanmetre]

All of the sudden, dielectrics seem to be much darker when I render -- I'm not sure why. Possibly a scale issue?

I've got a clear glass material and it is renders from black to a more transparent black.

Any reason why this might be happening?

jvm

[3dtrialpractice]

r u using a mxi emmiter in the scene.. just saw a post that shows dilectic/sss problems w/ mxi emmiters if u have mxi replace mxi w/ reg emmiter.. and see

[3dgeek]

Yeah I am in the same boat. Black glass. The material is transparent. It's a lamp with a sphere in the center of it with an emitter material assigned to it.

Any ideas?

[Asmithey]

I am getting dark glass as well. The galss was rendering fine until I placed spot lights directly over the glass to get some extra highlights. Any ideas as to why this is occuring. I am using high grade glass from the wizard.

Thanks,


No Spot Lights


Spot lights On

[Asmithey]

Can anyone from nextlimt please give any insight on this. Even if I am doing something obvious in error, I do not know what it is. I need the glass to be clear with my lighting set up. Any advice would be appricated.

Thank you.

[Renato Lemus]

Have you tried raising the attenuation?

[Asmithey]

Hi,

I have the attenuation and REF 90 at 255,255,255 ND 1.51 and REF 0 at 11,11,11.

If any of these settings are incorrect, please let me know.

Thanks,

Aaron

[Renato Lemus]

I mean the one that is given in distance units, for instance, raise it to about 20 cms and see what happens

[Asmithey]

Right, the distance, my bad...

It is set to 80cm. Seems like more than enough distance for my wine glass. Can too much be a problem?

Thanks,

Aaron

[lebbeus]

i'm trying your settings out on the simball right now and they seem to be working fine.

I'm using a transmittance color of 240,240,240…what is yours set at?

[3dgeek]

My issues in this glass problem were related to scale... seems like there's something different in regards to the scale issue. The scene I had rendered fine in release 1.6 and is extremely dark in 1.7 until I adjusted the scale to test. Then it cleared right up!

Scale, scale, scale.... I guess.

[lebbeus]

Asmithey--

care to share the model of the wine glass for testing purposes?

[Asmithey]

Hi,

My scene scale is 1. Everything is built full scale. It renders fine except when I have a direct spot light over it. I am using it as an Instance as there are many of them. So, there could be an issue there...speculation though. I can post it. It will be awhile though. Thanks for offering.

Aaron

[lebbeus]

an mxs of it should be sufficient, otherwise .obj or .3ds

[lebbeus]

quick question for everyone that's experiencing this issue:

are the caustic layers turned off in your scene?