[Bf-cycles] Should the Glass Node only colorize the refractive part?

Zauber Paracelsus zauber at gridmail.org
Wed May 13 16:47:02 CEST 2015

AFAIK, the glass node is used for more than just glass, so a change like 
that may break some existing materials.  I think that the desired effect 
could be accomplished by using a mix node with two Glass BSDF's, using 
Geometry->Backfacing as input:


I don't know if this is 100% accurate, though.

On 05/13/2015 10:20 AM, gottfried at blenderdiplom.com wrote:
> Hello Cycles Developers,
> currently, the Cycles Glass BSDF colorizes the reflections like metal
> would. That should not be the case, only the refractive portion of the
> light should be colorized.
> Check out the following image:
> http://www.pasteall.org/pic/88066
> On the bottom right the current Cycles glass, colorizing the
> reflection on the monkey. On the bottom left a monkey with a material
> consisting of the node setup on the top. The refracted rays get
> colorized but not the reflections.
> Should this be the default behaviour for Cycles glass?
> Here a photo of real glass:
> http://www.pasteall.org/pic/88067
> Cheers,
> Gottfried
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