Vantage in the viewport works great for small scenes, but when I have a big scene with a lot of geometry, the response is very slow. In Vantage, it works perfectly smoothly, but in Rhino, the viewport is very bad.
This situation makes me not use the Vantage in the viewport at all. I think it is a brilliant idea, but it is not working properly.
Any idea, recommendation?
Hi @javierrentas ,
The scene size shouldn’t actually affect the viewport rendering performance, especially when Vantage and your GPU handle it fine.
Is it possible to share the project you’re testing it so that we can debug it (share it via DM)?
If you can’t share the project, please record a video showing the unwanted behavior - it might help us find the issue.
Regards,
Konstantin
I made a video because I could not share the scene. In the video, the first part is in the Rhino viewport, and the second part is in Vantage directly.
You will notice that in the Rhino viewport, I have step movement. In another scene, this gets worse.
Vantage is very smooth. That is the behavior I want inside the Rhino viewport.
https://drive.google.com/file/d/1-lnbnqLY5r27rFFODs\_SIEpfQ-Gy7dW3/view?usp=drive\_link
Thank you, I’ve requested access to view the video.
I watched the video and there are 2 things I suspect:
- The Space mouse might be causing some kind of an issue (as this has happened in the past)
- The Rhino-side handling of the viewport might be involved. I believe Rhino is still rendering the meshes in the back and this could lead to a slowdown.
Here are a couple of questions to narrow this down further:
- Do you experience a lag in the regular shaded viewport of Rhino?
- Does it still lag when using the mouse to navigate?
- Is there a similar lag when rendering with V-Ray or V-Ray GPU in the viewport?
Here are a couple of questions to narrow this down further:
- Do you experience a lag in the regular shaded viewport of Rhino?
Yes, I have some lag when I’m in Rendered mode in Rhino. If I’m in Shaded mode, everything is smooth
- Does it still lag when using the mouse to navigate?
Same as the previous question. Only in Rendered mode. In Shaded mode, the space mouse works well
- Is there a similar lag when rendering with V-Ray or V-Ray GPU in the viewport?
Yes, I could not use interactive rendering because of the same lack. I was hoping the Vantage would fix those issues.
Is there any recommendation to improve the Rhino performance?
One more question:
Are you sure that you are actually moving the camera in Rhino (and not accidently focusing Vantage on a second monitor)?
What I noticed is that when you move the camera in Vantage, the Rhino viewport still updates but it’s very laggy.
And one thing to try - In the Vantage Viewport configuration panel you can disable the lighting completely.
Are you sure that you are actually moving the camera in Rhino (and not accidently focusing Vantage on a second monitor)?
Yes, I’m orbiting in the Rhino viewport.
What I noticed is that when you move the camera in Vantage, the Rhino viewport still updates but it’s very laggy.
Yes, that is happening. When I do the Vantage viewport in Rhino, Vantage software starts running, and I have the same view in Rhino and Vantage. If I orbit in Rhino, it will orbit in Vantage and vice versa.
Is that normal? When you do Vantage in the Rhino viewport; the whole Vantage software start?
I tried everything to have a nice and smooth orbit, but I have had no success.
I have two NVIDIA A 6000 video cards, and nothing seems to work. I only have smooth orbit inside Vantage
One more issue that I have is that when I have vantage in the Rhino viewport and the viewport is maximized, so there is only one viewport, and I click on the Rhino option icon in the toolbar, the windows it is not visible, as if it is behind the Vantage viewport.
Vantage viewport is not an overlay window. It uses Rhino SDK to blit the pixels on the display pipeline. there is no window ordering, or something. Do you experience this issue with the V-Ray interactive viewport as well?
Do you use Rhino 8 or 9 WIP? does it happen in both?
Well, when I’m full view on Vantage in the viewport, any extra windows hang for a while. No Idea why. I need to switch to the fourth view to see the new windows. It could be the option, the block editor window, etc.
The issue is fixed. It turns out Rhino was the cause all along. As far as I understand, there’s a 100 ms viewport refresh timer. When you orbit in Rhino, it refreshes immediately; when idle, it refreshes about 10 times per second. Orbiting in Vantage doesn’t register any activity from Rhino’s point of view, so it needs a small nudge to bypass the timer and trigger an immediate refresh.
Thank you! That makes sense.