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Messages - Nejc Kilar

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1
I personally like the idea because especially in arch-viz scenes can get rather large which obviously has an effect on parsing times.

That said typically what increases scene parsing times is just loads and loads of geometry. It does help a ton of its instanced but even then it, from my understanding at least, isn't trivial to place all the geo in places. I would assume that if you turn a couple of those heaviest forest packs off things will get speedier but I already know you know that so this is kind of useless advice probably :)

If I may I'd suggest a +1 on RecentSpacesSam's feature suggestion thread there. That way we can keep better track of how many people are interested in this particular feature.

2
Hi Nejc,

- you can't change a pivot of corona proxy...
- it would be useful to have a command in tab/list format to replace assets like in 3dsmax (much faster) ... insert it into the already existing corona "Lister Tab"?
- I forgot about the c4d randomize tools, tnx!!! (Here too, giving it a crown tab look like in 3dsmax would be nice and useful) ... insert it into the already existing corona "Lister Tab"?

Good points! If I may I'd suggest posting those as separate feature suggestions (topics). That way it'll be easier for the team to monitor them and also ask any questions the devs might have :)

3
Howdy! Here are some of my suggestions for the modeling / object placement features:

- Object Replacer -> "Replace with" under tools
- Transform randomizer -> "Dynamic placement tool" or the "Randomize" tool
- Pivot placer -> "Axis Center" tool

4
Yes indeed, this is currently a limitation with the Tile shader unfortunately :\

If use the Corona Tile shader directly for your bump effect (without anything plugged into into the Tile shader) then you need to be in UVW mode and you need the filter shader in between.

Here is a quick demo from the Tile tutorial if it helps any https://youtu.be/9WP7Oijes6s?t=1204

5
Hardware / Re: Dual Epyc 9654 experience?
« on: 2024-03-11, 12:31:35 »
Hi, we have a single processor AMD epyc 9754 with a supermicro mobo and 384 GB memory DDR5, it is fast as hell BUT the geometry fase is 10x slower than my old pc (dual intel xeon E5-2699V4 arround 8 years old!!), we are still trying to figure out why, and we render a lot of animation so this phase comes back in every frame, we loose between 60 and 120 seconds per frame!

Hmm that really shouldn't be the case imho - yes the 2699v4 has a 500mhz higher boost clock but the IPC has come a long way in the 10 years since it was released.

Could you please double check what frequency is being reported (and core utilization) during scene parsing? Not all the cores should be busy but you should be close to at least 3ghz and that would indicate it is not the hardware at fault.

6
@dfcorona, just thought of this. I used to have PBO enabled on my 3970x workstation but for whenever I wasn't behind the computer and it was doing over night renders I used a customized Windows power profile on it. I went into the balanced profile and changed the max CPU performance target to 99%. That effectively clocked it down to its base clocks which sure was slower than PBO boosting but hey, went from ~90c to 70c :)

Maybe worth trying out on your end as well?

7
Here are some overclocks.  One at 6400MHZ RAM and also set temp max to 80c and pulling a 39k, but I would get a loud continuous beep from the motherboard. I then set from Expo I (DOCP I) to Manual and set just the RAM back to 4800MHZ and also set temp max to 70c and I get no continuous beep anymore and pull a 38k.  You can really hear the VRM fans ramping up. Not sure what the Beep is telling me, I'm not all that great at overclocking to be honest... never really overclocked before with my previous systems because there wasn't much to gain, but with the new 7000 series there are some really good gains. Not sure where I feel safe with the Temps yet, I know you just don't want to go over 95C. But for continuous rendering I don't want to be close to that either.

On my Zen 3 Epyc render node (Supermicro board) the continuous beep means VRMs are overheating :\

8
Here you go

Very interesting, thank you!

9
@dfcorona may I ask what the all core turbo is when running say the Corona 10 benchmark for example?

10
Just for the sake of the debate but are we all perhaps too temp sensitive? Consumer chips go up to basically 90c and that is considered "ok". Should we perhaps treat Threadripper the same?

I mean I personally can't quite bring myself to think like that. Consumer chips technically aren't designed to run 24/7 plus server chips (Epycs and Xeons) tend to have lower max temp ratings. Still, I do wonder :)

11
[Max] I need help! / Re: Roughness from Substance 3D Painter
« on: 2024-02-23, 10:18:16 »
Haven't looked into it per say yet but from my understand you'd want the RGB primaries (inside the Corona Bitmap) be set to either Linear sRGB or raw and then when you import the map, in the import dialog box, you can choose to override gamma to 1.0.
This way you get a linear import in which is what I think you'd want to use here.

The color space of Linear sRGB or raw doesn't really make a difference as the map probably wasn't created with the ACEScg primaries anyway so either will do.

12
Maybe just a little addition if I may, the Corona Physical MTL does work a bit differently under the hood sometimes - for example it is using the Oren Nayar diffuse model and there's been some improvements to the way thin glass is handled amongst others.

That said yes, nothing wrong with using the Legacy MTL, it is a fine material :)

13
Not yet, hate that you loose warranty and they can tell but I'll probably still do it. I think I can get another 20% performance without going to crazy. Right now I'm getting 34k on Corona benchmark and temps are mid 50's.

Dang, only mid 50s full load? That's beyond impressive :)

Yeah that OC fuse is a rather interesting addition to things. According to a statement from AMD they will respect the warranty IF it did not die from OCing (regardless of the fuse) - but how they'll figure that out I do not know :)

14
I've run the Noctua NH-U14S TR4-SP3 on my 3990x and it is a great if not the best air cooler for it. I ran it with upgraded fans for better cooling. I then switched to the Silverstone IceGem 360 with upgraded fans, runs even better. I'm running the Silverstone IceGem 360 now on 2 3990x workstations and one 7980x workstation.

Just curious, have you maybe tried PBO on the 7980x already? :))

15
Huh, that does sound like overheating to me as well - especially if you're reaching 95c regularly. Could be your AIO pump is failing?

Anyhow, from my personal experience I'm running a 5995wx (64 core part much like your 3990x) and the U14s does a terrific job with it. I'm not running PBO and I do have it set to 100% once the temps go above 60c but the thing is really quiet for a workstation and the max temps I am getting are 72c. So in case that helps...

That said, I'm of the opinion that if you want the very best (short of maybe custom water cooling?) cooling on TR4 then the Icegiant is it. I initially wanted to get it for my 5995wx but on this platform the socket is rotated 90 degrees so the Icegiant wouldn't really work well - so I opted for the Noctua and I'm really quite pleased with it.

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