Viewport Performance - Heavy on CPU, not GPU - Why?

Rhino Rhino for Windows
1

Hi All,

I have a lot of lines/curves in my Rhino scene, and when I pan around I notice that my CPU usage shoots up but my GPU usage only goes up a few percentage points. This does not happen when I am in a large scene comprised of primarily 3D geometry/

I was just curious if this is just the way it is or if something is not right with my graphics settings. Below are the relevant specs on my computer.

GPU - TitanX
CPU - i7-5960X OC’d
Memory - 32gb

Thanks, Justin

2

That is just the way it is. Our “curve” drawing code is very different than our “shaded mesh” drawing code. Curve drawing is typically CPU bound.

3

Great, thanks for the feedback Steve.

-JRT

4

@Steve , I usually use rhino for 2d drafting…is there a way to speed up pan and zoom in layouts?
I noticed slow performance in layouts with wireframed details (Rhino5 64, win 10 & i7 2600k)…only CPU is working on this layouts…and a medium size (60Mb) 2d drawing with a few 3d models is quite slow…any suggestion to speed up the viewport?

5

Not really other than hiding things

6

You should use quadro display to run rhino in OpenGL, not gtx serious (include Titan serious) :wink:

I try 3nos sli Titan < 1 nos k4000 quadro to run rhino.

7

Thanks, I supposed there should be some real difference of performance for the price they cost ! Seems to be hard to choose now, since for rendering some render engines requires lot of CUDA cores, and that would suggest GTX series…

8

One Titan x is only to render a simple 3D model on any rendering program for rhino, such as a ring or toy. I spend much money on there:sob: