Iray Preview Not Working Well

James

In the viewport, when I keep moving my camera, it shows the iray preview, but then when I stop, it becomes like smooth shaded again.
How to solve this?

crosswind

Oh, did it? Did you hold your mouse button or not when stop moving the camera view ? Any screenshot, and your Draw Settings as well ?

James

Wether holding the mouse button or not, when stop, the iray stop.
drawing pane:
https://prnt.sc/uf4AZ9_2D8Fu
https://prnt.sc/ejb3luoaHSQA

when moving:
https://prnt.sc/3pPcr-YsWj30

when stop
https://prnt.sc/ssVG9P2FTmKe

 

crosswind

OK... I remember you have a 40xx, right ? In Draw Settings, change Manipulation Resolution to 1/2 or 1/4, see if it's improved.

James

Yes. 4070ti.
 

In Draw Settings, change Manipulation Resolution to 1/2 or 1/4, see if it's improved

has no effect.

crosswind

I'm sorry I could not reproduce the issue. Have you turned on ECC on the card? Check it in your NVIDIA Control Panel...

James

I can't find ECC on Nvidia Control Panel.

Where is it?

crosswind

Press Start key , search Nvidia Control...

James

I mean I know Nvidia Control, but where inside the control is the ECC option. I've googled, but the search result doesn't help.

James

It seems I've found the problem. There's an item if I delted it, iray preview works again.