Well, Vray uses the PRG-Clear sky model and Redshift will be implementing their version of PRG-Clear Sky in the next update. It just offers better look especially at sunrise and sunset.
Here's a link to the Redshift forum post - Saul from Maxon shows a sunset comparison.
https://redshift.maxon.net/topic/32893/new-sky-model/54
The PRG model seems to have a much larger and more intense sun at the lower angles which in turn gives a nice look on interiors. I've tried but I can't replicate this at all in Arnold.
@Stephen.Blair I spaced on that the forum needs a sign in, sorry about that.
I've attached the comparisons by Saul.
Would be great to have something like this in Arnold.
Ehy!
if you're interested in sky models, join Arnold discord server (max-rombotools channel) to see our latest sky dev, upcoming with v1.5, we're implementing multiple models (PRG is already there) as each has its own strenghts.
+1 for some upgrades to the native Arnold Physical Sky Shader
Just to link the V-Ray docs, the option for cloud shadows is amazing:
https://docs.chaos.com/display/VRAYHOUDINI/V-Ray+Sun+Light
(while this wouldn't likely be used visually being replaced by a matte painting- saves having to always create light blockers / gobo)
In combination with this, what would also be incredible:
1) Being able to see the resulting sky shader in the viewport.
2) Viewport controls to move the sun position while the sun haze still corresponds correctly etc.
All the best.
Andrew
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