Rhino 6 'Rendered Mode' is Black

Hi everyone,

For one of my models, whenever I change my view to ‘Rendered Mode’ my screen goes black. Does anyone know how to fix this problem? This only happens with one of the models, I’d say the heaviest one!

Thank you all!


Generally and black viewport indicates a problem with OpenGL graphics.
It could be old drivers or maybe something about that file is overrunning the VRAM on the graphics card and triggering an error.

Make sure your Mac is up to date with updates from Apple.
Is it an old Mac?
What MacOS are you running?

Maybe run the SystemInfo command in Rhino V6 and post the results.


Hi John!

Thank you for your response, heres what it says when I run the SystemInfo in Rhino V6.
It’s a new mac and is up to date! It’s macOS Catalina Version 10.15.4

Thanks again!!

Screen Shot 2020-05-04 at 10.53.41 AM|493x500

I don’t see anything obvious there, but because you used a screenshot, it’s very hard to read, even on my 27" monitor.
Next time please copy/paste the text.

How many monitors are you running and at what resolution?
If you run SelBadObjects does anythins highlight?