Sun doesn't work in viewport


I have a problem with sun in viewport.

When I check the sun on, nothing happen. I still have the random sun moving while a move in my viewport. I would like to make sun studies and modifying the day, the time but nothing change. Can somebody help me with this issue ?

Thank you.
Best regards.

Hello - please post a file that shows the problem - exactly as you have it, but you can place a box instead of your building to simplify matters. What is the current renderer?


Thank you for your reply Pascal.

box.3dm (65.8 KB)

My current render is Rhino but it’s the same if I turn on Vray.

Hello - Sun seems to work here:
Can you try disabling VRay completely in Options > PLug-ins page and then close and restart Rhino?
Any different?

I tried. Nothing changed.

Actually, shadows work but the thing is that shadows don’t move whan I use manual control…

Thank you for your time Pascal.

So, may someone help me, please ?

Hello -

please run the SystemInfo command in Rhino and post (copy/paste) the results here.


Also, which display mode are you using and, if that’s a factory-default mode, have you modified it from its defaults?