playing with caustics

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Sharlybg
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Re: Moebius

Post by Sharlybg » Mon Oct 22, 2018 10:47 am

epilectrolytics wrote:
Mon Oct 22, 2018 10:32 am
New animation!
https://www.dropbox.com/s/2irt672yd0pgco9/moebius1.mov

Needs more samples but that has to wait till I got a faster PC.
Really really nice and minimalistic Animation love it. What kind of PC do you have ?
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epilectrolytics
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Re: playing with caustics

Post by epilectrolytics » Mon Oct 22, 2018 12:19 pm

Thanks Charles.

I'm on a MacBook with with a quad-core i7 and a GT750M (see signature) which is not quite sufficient for animation rendering.
For Xmas I'm looking for something more adequate with a hexacore at the least.
MBPro 15" 16GB i7-4850HQ GT750M, MacOS 10.13.6 & Win10Pro PC 16GB Ryzen 2700X, RTX 2070, GTX 1060

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Animated volumetric caustics!

Post by epilectrolytics » Fri Dec 14, 2018 1:35 pm

Wanted to do this for years, now it took me three days to render four seconds :lol:
https://www.dropbox.com/s/nuvb4f6oakvuq6y/waves.mov
The render speed of the Ryzen octocore in my new PC is not as fast as I hoped for.
Maybe this is a Windows thing, like on Linux CPU rendering would be faster?
I think I read somewhere that rendering with Cycles on Win10 was slower than on Win7 or Linux.
And maybe the Spectre and Meltdown patches are slowing down things?
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B.Y.O.B.
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Re: playing with caustics

Post by B.Y.O.B. » Fri Dec 14, 2018 1:39 pm

Cool!
epilectrolytics wrote:
Fri Dec 14, 2018 1:35 pm
I think I read somewhere that rendering with Cycles on Win10 was slower than on Win7 or Linux.
And maybe the Spectre and Meltdown patches are slowing down things?
This is the case since years before Spectre/Meltdown were discovered.
I don't know if the same applies to LuxCore, someone should test it.
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Re: playing with caustics

Post by lacilaci » Fri Dec 14, 2018 2:07 pm

B.Y.O.B. wrote:
Fri Dec 14, 2018 1:39 pm
Cool!
epilectrolytics wrote:
Fri Dec 14, 2018 1:35 pm
I think I read somewhere that rendering with Cycles on Win10 was slower than on Win7 or Linux.
And maybe the Spectre and Meltdown patches are slowing down things?
This is the case since years before Spectre/Meltdown were discovered.
I don't know if the same applies to LuxCore, someone should test it.
I would be interrested in some proper comparison on the matter...
I run both windows 10 pro and ubuntu 18.10 and so far I haven't noticed any significant differences on either cycles or luxcore.
If there are any they're probably not too noticeable, what's slow is slow what's fast is fast on both systems (and that's with my win install running all kinds of services and malwarebytes and who knows what accumulated over years, while my linux is relatively fresh and clean of anything).

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Sharlybg
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Re: playing with caustics

Post by Sharlybg » Fri Dec 14, 2018 2:11 pm

The render speed of the Ryzen octocore in my new PC is not as fast as I hoped for.
Maybe this is a Windows thing, like on Linux CPU rendering would be faster?
wich ryzen ? and how fast you expect it to be ? how fast are you on this ? : viewtopic.php?f=3&t=574&hilit=benchmark

So i can compare to my i7 8700k for you.
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Re: playing with caustics

Post by epilectrolytics » Fri Dec 14, 2018 2:51 pm

Sharlybg wrote:
Fri Dec 14, 2018 2:11 pm
wich ryzen ? and how fast you expect it to be ?
Ryzen 2700X (see signature).
I was comparing it to the Intel quadcore i7 2.3GHz in my MacBook and on the pool scene I posted above the Ryzen does ~950k samples/s whereas the i7 makes ~440k (one frame takes 40 min on the Ryzen).
I was hoping a newer CPU with double thread count and more GHz would do better than 2.2x.
But Geekbench4 is 26642 vs 12226, so apparently I'm good :|
how fast are you on this ? : viewtopic.php?f=3&t=574&hilit=benchmark
So i can compare to my i7 8700k for you.
I posted a result there, 4min 17s but with GPU support.
I will do a CPU run later and report, thanks for your offer :)
lacilaci wrote:
Fri Dec 14, 2018 2:07 pm
I run both windows 10 pro and ubuntu 18.10 and so far I haven't noticed any significant differences on either cycles or luxcore.
That's helpful, I won't start experiments with Linux then, I'm new to Windows, had the guys at the PC shop assemble and install everything for me and am very happy that everything runs smoothly, so I can concentrate on learning Blender and LuxCore better instead of struggling with the operating systems.
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Re: playing with caustics

Post by B.Y.O.B. » Fri Dec 14, 2018 3:17 pm

lacilaci wrote:
Fri Dec 14, 2018 2:07 pm
I run both windows 10 pro and ubuntu 18.10 and so far I haven't noticed any significant differences on either cycles or luxcore.
Note that this only concerns C++ CPU rendering, not OpenCL/CUDA.
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Re: playing with caustics

Post by lacilaci » Fri Dec 14, 2018 6:35 pm

B.Y.O.B. wrote:
Fri Dec 14, 2018 3:17 pm
lacilaci wrote:
Fri Dec 14, 2018 2:07 pm
I run both windows 10 pro and ubuntu 18.10 and so far I haven't noticed any significant differences on either cycles or luxcore.
Note that this only concerns C++ CPU rendering, not OpenCL/CUDA.
Hm, interesting.

I'll do some comparison once we get gi caching. No point rendering on cpu now.

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epilectrolytics
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Re: playing with caustics!

Post by epilectrolytics » Sun Dec 16, 2018 7:20 pm

epilectrolytics wrote:
Fri Dec 14, 2018 1:35 pm
The render speed of the Ryzen octocore in my new PC is not as fast as I hoped for.
Actually it works quite well.
Apparently Intel CPUs with similar core and GHz specs have advantages in speed and power efficiency, but not equivalent to their price premium.

________


And now for an attempt with glossy and matte (straw and cloth) translucency:
(Bidir CPU as usual)
glass.jpg
MBPro 15" 16GB i7-4850HQ GT750M, MacOS 10.13.6 & Win10Pro PC 16GB Ryzen 2700X, RTX 2070, GTX 1060

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