Iray Preview Error

OminousAutumn

My Iray preview will sometimes change out of nowhere to only look like the 'smooth shader'. When this happens I cant test lights etc and see what my scene looks like. Why is this happening? I have no idea how to change it back or what variable I toggled to cause this to happen. I dont want to have to render a scene just to see what it looks like for a quick reference. Thanks.

Richard Haseltine

That so8nds as if, for one reason or another, Iray is no longer responding. That used to happen sometimes but I haven't seen it for a while. Whata re your hardware specs, driver version, and settings for teh Iray drawstyle (Draw Settings pane)?

Chezjuan

That sometimes happens to me. It seems to be when I am making a lot of texture changes and Iray has to keep reloading them. If I switch back to another view, such as Texture Shaded, then back to Iray it usually starts working again. Very occasionally I will need to exit and reload Daz Studio to get it to preview properly.

Richard Haseltine

Chezjuan said:

That sometimes happens to me. It seems to be when I am making a lot of texture changes and Iray has to keep reloading them. If I switch back to another view, such as Texture Shaded, then back to Iray it usually starts working again. Very occasionally I will need to exit and reload Daz Studio to get it to preview properly.

Yes, failing during checking alternative materials does ring a bell - I think if you keep half-an-eye on the status bar and don't make another change until it has passed the heavy lifting (transfering data pehaps) that the issue was less likely to happen.

OminousAutumn

Richard Haseltine said:

That so8nds as if, for one reason or another, Iray is no longer responding. That used to happen sometimes but I haven't seen it for a while. Whata re your hardware specs, driver version, and settings for teh Iray drawstyle (Draw Settings pane)?

Im on a Macbook Pro M1max with 64 gigs of memory. Idk my driver version. 

Highllight style - bounding box and surface

bounding box edge length - %25/////active opacity - %30////inactive opacity - %100//// manipulation drawstyle - use current off//// subdivsion updates - delayed//// manipulation binding - optimized//// wireframe opacity - %100//// subdivision wireframe opacity - %10//// triangulation wireframe opacity - %0

I started a new project and it works there. I opened the broken one and it still doesnt work.

OminousAutumn

Chezjuan said:

That sometimes happens to me. It seems to be when I am making a lot of texture changes and Iray has to keep reloading them. If I switch back to another view, such as Texture Shaded, then back to Iray it usually starts working again. Very occasionally I will need to exit and reload Daz Studio to get it to preview properly.

This has not worked for me. I loaded a new project with the same assets and it works fine. I load the old project and the iray preview still doesnt work.