Messages

1

[Max] I need help! / Re: How to seperete Corona Light Materials in Light Mix?

« on: 2024-02-08, 12:43:23 »

Not sure if this has been thought of or how relevant it is to the initial poster’s need for this function, but here's a hacky work around (for simple geo) which I have working in a very basic scene.

Duplicate your geo (just the part which will have a light material over the top)
Apply a push modifier at 0.1 or something tiny (so the faces don't fight)
Apply a corona light material to the duplicated geo but make sure 'Occlude other lights' is unticked

Generate your lightmix and you should now have a separate lightmix element which can be turned on and off but does not block the material underneath.

see gif attatched

I had to figure this out because I needed to create metallic materials which then light up in animation manually using after effects and lightmix passes. This avoided having to do two renders.

2

[Max] General Discussion / Re: Can't cancel auto renewal? Now have to pay for another year?

« on: 2023-11-09, 11:39:32 »

So you know, both me and my wife submitted a ticket about it to chaos 2 days ago. She got a reply the next day and they canceled her auto renewal. I, on the other hand, am still waiting.

Hurrycat, hopefully they will get back to you soon

JoeS, I reckon send a ticket asking for a refund explaining your situation.

As you've both stated, you had no idea about this and did not remember signing up to it, just like myself and my wife.

I'm sure it's not intentional on chaos' part so I do hope it gets resolved.

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[Max] General Discussion / Re: Can't cancel auto renewal? Now have to pay for another year?

« on: 2023-11-07, 21:47:15 »

Thanks, yes I have sent a ticket, but also posting here as there is another post about it over at chaos where people are saying support is not getting back to them https://forums.chaos.com/forum/licensing-forums/licensing-problems/1187370-no-way-to-cancel-auto-renewal-on-the-website

I actually went through my emails and found that last year I cancelled 3 days before, but this year I am 20 days away and cannot cancel.

I am aware that something changed on chaos' end and it's now 30 days notice (no idea when this came into play, I don't seem to have any email about it), but really hope I don't have to spend another £300 or however much it is.

My wife also purchased same time and needs to cancel so it's a double blow if we both have to pay. Glad we've noticed with 20 days left so there is potentially time to sort.

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[Max] General Discussion / Can't cancel auto renewal? Now have to pay for another year?

« on: 2023-11-07, 21:08:01 »

Last year I canceled my corona license a day or two before expiry and took out a new one on black friday for the discount (as many people do).


This year I don’t need a license as I use my work machine for everything. But I can't cancel now and it's 20 days before expiray, so I will get charged for a whole new year for a product I won’t use??


Will this really happen? 😞😞😞 Any light shed on this will be really helpful.

Thanks

5

[Max] Feature Requests / Re: Corona Decal Request - Option to make layered materials appear over the top

« on: 2023-01-19, 23:48:22 »

Oh great! look forward to it then :)

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[Max] Feature Requests / Re: Corona Decal Request - Option to make layered materials appear over the top

« on: 2023-01-18, 23:52:28 »

Good point that will work. Although since decals project from one angle only I couldn't really use this method to create my dirt layer over a more intricate and organic shape; unless I uses loads of decals all around the object to project on all areas.

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[Max] Feature Requests / Corona Decal Request - Option to make layered materials appear over the top

« on: 2023-01-17, 23:16:46 »

Not sure if the title describes it well enough so I took some quick screenshots of basic example. Sorry if it's been asked already, I couldn't find anything in a search.

I have a achieved it....kinda, but it's impossible to retain the same mapping of the dirt because I can't throw a uvw on corona decal.

If I wanted to do a wall with graffiti, then dirt over the top, it would be awesome to have a tick box 'retain layered materials' or something.

Thanks!

8

Hardware / Re: Threadripper 5975wx VS 3990x

« on: 2023-01-12, 20:31:23 »

I've done some further testing:

We have 2 3990x in the office and 1 3970x. I ran corona benchmark and the scores roughly align with the middle of the pack when looking at user submitted results which is good to know. Ours are not overlocked or anything, just vanilla.

By that logic and using the middle of the pack scores from the user submitted results:

• 3990x is about 1.67x faster than a 3970x
• 3990x is about 1.47x faster than a 5975wx
• 5975wx is about 1.13x faster than a 3970x

I would give or take about 0.1 though since the difference of even a second can change the result that much. Except for the 5975x vs 3970x, I would expect the 5975x to always be faster by about 10-15% (as Nejc Kilar suggested). Also those people who are scoring under 14 seconds with a 3990x please tell us how you are overclocking them, talk about getting the most out of your money. 💸

Welp, this is good enough for me for now, Thanks everyone. I'll stick with getting the absolute weapon 3990x (while continuing to research epyc in the background hehe)

9

Hardware / Re: Threadripper 5975wx VS 3990x

« on: 2023-01-10, 23:45:00 »

Well, that's food for thought 🎂. If I could get two epyc chips totalling at less than the price of a 3990x, but could match the render time of the 3990x.

How would I work out how well they perform though? There's so many models to choose it seems. I guess if I knew how well one performed, I just slice the the render time in half for two right?

10

Hardware / Re: Threadripper 5975wx VS 3990x

« on: 2023-01-10, 20:37:26 »

Thanks guys,

Yea we actually also have a 3970 too :) So I'm aware of its speed compared to the 3990x.  But adding a 10-15% speed increase to give an idea about the 5975wx seems like a good idea. Ill run another test this week and see how it aligns with my other research.

For me it's all the about render times and having better cpu takes hours off. I've used max and corona on a variety of devices - laptops, i9 pc, older dual xeons and I've never noticed any difference with anything other than raw render time. If I was looking for it, I'm sure I would see that some cpus fire the render up a bit faster but I'm more interested in cutting long render times.

Only if we could put two 7950x on the same motherboard 🤯 that would be awesome.

11

Hardware / Re: workstation build 6-10k €

« on: 2023-01-10, 11:38:25 »

This is definitely an avenue to look down. If we take the middle of the pack scores on Corona benchmark for both the 3990x and the 7950x it appears that the 7950x is about half the speed.....and it cost a fraction of the price haha.

The issue is ram though, it's ddr5, do the motherboards allows us to have 128gb yet with 7950x yet? Last time I checked it wasn't an option but I need to do more research. Also is the price higher? Defo worth considering this before hand.

Edit: Did a bit a digging and It appears 7950x does support 128gb ram but it's not common atm maybe. Because some of the vendors I use to configure a custom build pc only allow up to 64gb ram with a 7950x, but a general search on google shows people making their own builds with 128gb, but then I see debates about it either not being as stable or running slower.....who knows.

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Hardware / Re: workstation build 6-10k €

« on: 2023-01-09, 20:52:20 »

Hi octavtirziu,

I just made a post actually because I am also confused by this. https://forum.corona-renderer.com/index.php?topic=39001.0

I used to be able to buy a 3990x build pre built beast (with an rtx 3090 + 128gb ram) for about £6k. But now for the same price I can only get a 5975wx equivalent build which as you will see in my post, it is inferior when it comes to render time (and that's all I care about really because these cpus can handle everything else I do).

I also note that the newest and greatest threadripper 5995wx seems to be only marginally better in render time that the 3990x and it would now cost me around just under £9k equivalent build!

Right now I am thinking it's best to just to buy all the parts separately (if you can find them) and build it yourself. In the uk I can do this for a similar price price as I used to be able to get a 3990x build for.

Would love to hear what others have to say about this and the best bang for buck these days when it comes down to raw render time as a work machine.

13

Hardware / Re: Threadripper 5975wx VS 3990x

« on: 2023-01-09, 17:12:54 »

Thanks guys, some interesting stuff above.

I’m really just looking for a direct comparison between the 5975wx and the 3990x when it comes to long rendering times in corona.

If i take the middle of the pack for corona benchmark results and compare them, I come to conclusion that the 3990x is about 1.5 times faster than the 5975wx

BUT if i look at these cinebench multicore results here it tells me that the 3990x is only about 1.2 times faster https://www.cpu-monkey.com/en/cpu_benchmark-cinebench_r23_multi_core-16

For both I just divided 3990x score by 5975wx score. Cinibench does not give results in seconds and it's obviously not corona render engine, but surely the same logic applies as it's a multithreaded render benchmark? maybe I'm wrong here?

Bottom line - If the 3990x is only 1.2 x faster then i'll probably turn a blind eye since its quite a bit of hassle to source all the parts for a 3990x build, not to mention  the volatility of the price.

But if it’s 1.5 faster then i'll go out of my way to do it, since i'll be getting more than one build for the office. Oh and 5995wx are completely out of the question, £7000+ for a build when they appear to be only marginally better than a 3990x…according to the benchmark results.

Just waiting for that magic person who owns both to give me a comparison benchmark :)

14

Hardware / Threadripper 5975wx VS 3990x

« on: 2023-01-08, 14:27:02 »

In the uk all companies which sell custom build, pre-built (they build if for you) threadripper pcs only sell the latest 5 series threadrippers now. I won't go into specifics of the build with all the other parts, but now I can only get a 5975wx build for the same price as what I used to be able to buy a 3990x build.

With this is mind the only way to still get a 3990x build for the same price is to buy the parts separately. This is ok, but not ideal so I am trying to figure out if its really worth it, or do I just get pcspecialist.co.uk for example to make me a 5975wx build with no fuss of having to do it myself.

This brings me to my main question: How much slower really is the 5975wx than the 3990x. This is very hard to gauge from corona benchmark because if we go by top result for both, then the 3990x is twice as fast nearly! As a side note the 5995wx is only about 1 second faster than a 3990x according to the top benchmarks; and it will cost about £2000 more. I understand people are doing all kinds of stuff to get these results and overclocking the absolute balls of their cpus, but what do I look at to get an accurate comparison?

If I do a search on google for 5975wx vs 3990x multicore I get various results averaging around the 3990x being about 1.15x faster (which is not huge anymore). Should I be looking at Cinibench multicore results for example?

It's a long shot but does anyone own both a 3990x and 5970x with similar hardware and able to give me a comparison. I have a 3990x already which gets about 17 seconds with corona benchmark with pretty standard water cooling, no other bells and whistles. If a 5975wx can only do 25 seconds I think I'll build a 3990x myself. I can get either cpu for about the same price.

Thanks! and please correct me if I'm wrong with any of the above.

15

[Max] Feature Requests / Prevent proxies from displaying as flickering boxes in viewport animation

« on: 2021-12-04, 20:28:38 »

Animated proxies never used to do this, something changed? Max 2022? I can no longer do viewport previews of animations with animated cproxys, they just flicker as a box. This was very useful before to check how fast a tree was moving and generally see the whole animation of a scene before rendering it. I'm specifically referring to - Tools > Preview Grab Viewport >  Create Preview animation.

Any help is greatly appreciated, thanks in advance.

Cheers.