I’m seeing a significant performance drop in viewport navigation in Rhino v7 vs v6.
I’ve started testing v7 a week or so ago, and the Rendering and Arctic views are much more sluggish than in v6.
As you can see, in v7 when navigating, after some stutter - the boxed preview turns on instantly, while v6 doesn’t have any problem navigating and rendering the viewport.
All the settings are set to Rhino’s default values, except that the Rendering material preview is set for the Arctic view, and in v66 the gamma is lower.
I would like to note that the v7 views even without the rendering materials, but with the single material, even tho much better, it’s still slower than in v6.
The default renderer is VRay5.
I have 2 quite good machines that shouldn’t be having any problems with this model.
One i7 gen4 16GB RAM GPU-GTX1070 8G
One i9 gen9 32GB RAM GPU-GTX2070 8G