Iray: 9:20 and still at 0%?
Scavenger
Posts: 2,674
in The Commons
What the heck is iray doing here? I set a render to go overnight, even let it run a bunch of hours this morning without checking, and 9hours 20 minutes, it's still at 0%? That's just ridiculous.
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That does sound as if something has hung - for one thing, if you hadn't changed the settings it should have stopped after two hours. Can you cancel the render?
That's a hung render. It's not going to do anything.
Usually a material/shader problem.
I had changed the render to not have a time limit. I canceled it, and am gonna try to do it in two parts.
How would I explore if it's a shader issue?
(brushes off his QA badge)
What I usually do is set everything to nonvisual, then start adding until things go pear-shaped.
Then set whatever just messed things up nonvisual, continue making other stuff visual and testing. Once you identify the problem object, then start setting different materials visible (set cutout = 0 for everything, start unsetting specific stuff)
I will point out that 4.8 has a known bug with Iray materials. I've noticed it primarily with items set with Metallicity. Not every item, but some models, for some reason.
well, doing the front half of the pic (an inside looking outside picture...doing inside)..after 4 hours, it's at 5%. (00379 iterations after 13899.835s.)
Pretty much, everything is just using the default iray uber shader., except for a very large part of it which is one of the uber glass, so I assume the reflection/refraction on the glass is what's causing some of the length of issues...but I don't really know exactly what each refraction setting does. (well I seem to understand the index, so the other one).
I'm running CPU only right now..Just didn't play well with my GPU before I did a reimage and haven't bothered installing the cuda drivers.
(I might after letting this go for a few hours more, toss it into reality, see how it's auto convert of iray does and its speed).
Or I'll figure out what some weird geometric shape that I've been wondering about is and realize I need to kill the render now at 7% and fix it.. sigh.
Hmm.. Reality doesn't recognize the meshlight/emission plane I'm using...we'll we'll see what happens with this default ibl (I so need to read the manual)
EDIT: OK... Reality is shedding some light on one of the problems, I thnk.
If you look in the grey area, you'll see some darker areas...that's actually from a second window I removed from the scene..set it's cutout to 0, but it's still having some affect....need to figure that out...
If you have a huge amount of uber glass, yeah, I'd imagine that would make your renderer go 'huh wut'
Converting it to Iray Glass should work fine, unless you are doing something weird with it?
Maybe I'm calling it the wrong thing?
This:
Oh, duh, I misunderstood. I thought you meant 'default IRAY SHADER' except for this thing which isn't Iray. But you just meant everything is default except that bit, which is Iray glass.
Well, huh.
I just hid the geometry (geometery tool) of everything that isnt supposed to show up or be reflected or exist (read that was the best way when using iray), and I've replaced the window from the model with a plane with the thin glass shader. 2 Minutes into a test render I'm already seeing a difference..I think the window in the set was done as multi pane, I was getting a number of reflections and ghosts in it...which isn't what I wanted anyhow. and a weird verticle stripe in the glass I couldn't figure out is not gone.