Pibuz wrote:What modeler are you working with?

Cinema 4D

It's project I did in school. Don't think it's quite finished but I got bored of it. It is what it is.
(Here are some more renders from of the scene.)

Oren–Nayar wrote:Free of charge answer: Its specular material with reflections only, no refractions will be calculated. By this its way faster to render and perfect for windows, but you'll notice the fake once you put it on some none flat mesh.

Ah, interesting. Thanks.

So I tried all your suggestions (exit portals, arch glass and bidirect. without MLT) and this is the result: http://i.imgur.com/rxD8vzQ.jpg

I am pleased. Thanks again

Bonus question: What exactly is arch glass?

fused wrote:Hi,

try rendering without MLT. While it gives relatively nice results quite fast, it may take a long time to give a noise free result.

Ok.

Oscar J wrote:Did you use arch glass? Exit portals?

No and no. Will check them out and implement it.

Thank you both for help.

Image #1 WIP: With window glass Image #2 WIP: Without window glass Both are way too noisy and were rendered overnight for 9 hours. Some info: - Bidirectional with MLT mode - 1158 x 900 resolution - 4x Supersampling factor - HDRI environment - scene info: Dynamic objects: 109 Triangles: 9706479 Uniqu...