KeyShot Forum

Technical discussions => Rendering => Topic started by: simonin on February 08, 2013, 12:09:53 AM

Title: big size image. Memory crash
Post by: simonin on February 08, 2013, 12:09:53 AM

Hello
With KEYSHOT 2.3 pro,I try to produce a big definition picture,to print a poster :170 cm  *  120 cm  whith 72 dpi. Calculation stop at 20 %: "memory crash". Is iet a software problem ?  How to proceed ?

Regards

Bonjour

Avec KEYSHOT 2.3 pro,je souhaite faire une image de grande taille,pour imprimer une affiche:  170 cm *  120 cm avec au moins 72 dpi .  Le calcul s
Title: Re: big size image. Memory crash
Post by: PhilippeV8 on February 08, 2013, 01:12:42 AM
Which OS are u using ?

I'm on Windows XP 32bit and the max render size I can do is something like 4000x4000pix, depending on how much space the open project and KS take in.
XP has memory limit way to small.
Title: Re: big size image. Memory crash
Post by: KeyShot on February 08, 2013, 09:51:44 AM
If you use exr output then you can render any image size.

Also, KeyShot 4 (coming very soon) will have some improvements when rendering very large images.
Title: Re: big size image. Memory crash
Post by: DriesV on February 08, 2013, 10:27:53 AM
Quote from: KeyShot on February 08, 2013, 09:51:44 AM
If you use exr output then you can render any image size.

Also, KeyShot 4 (coming very soon) will have some improvements when rendering very large images.

Doesn't higher resolution rendering still require more memory?
I always thought that was the case. ???

Dries
Title: Re: big size image. Memory crash
Post by: guest84672 on February 08, 2013, 02:03:57 PM
Exr will write to disk once memory fills up.
Title: Re: big size image. Memory crash
Post by: PhilippeV8 on February 08, 2013, 11:27:31 PM
I must check into that again, but I remember trying that in the past, and since I'm not using it now ... must be a reason why ..
Title: Re: big size image. Memory crash
Post by: PhilippeV8 on March 19, 2013, 03:32:50 AM
 :-[
Title: Re: big size image. Memory crash
Post by: guest84672 on March 19, 2013, 06:25:26 AM
When is this crash occurring? Right at the beginning of the rendering?
Title: Re: big size image. Memory crash
Post by: PhilippeV8 on March 19, 2013, 07:28:30 AM
Correct.
Title: Re: big size image. Memory crash
Post by: guest84672 on March 19, 2013, 10:36:19 AM
Maybe you are out of memory before you start the rendering?
Title: Re: big size image. Memory crash
Post by: PhilippeV8 on March 19, 2013, 12:51:55 PM
I'm still on silly Windows XP 32 bit and running dangerously close to the limit or sometimes over.

I'm quite sure I could get it to work without a crash if I disable the alpha chanel .. but I need it.
Title: Re: big size image. Memory crash
Post by: guest84672 on March 19, 2013, 12:58:22 PM
or with smaller models ...

What I think is happening is that you are at the limit and there is no room left to even start writing out the image.

Time for an upgrade!
Title: Re: big size image. Memory crash
Post by: PhilippeV8 on March 19, 2013, 02:08:38 PM
It's time for many upgrades ... and so it has been for +2j ...

I need KS3 upgraded.
I need KS4 installed.
We have an Adobe pack with FL/PS/IL/.../Premiere .. CS5.5 or so ... stored somewhere .. cuz they can not install it on a WinXP computer.  But we DO have a license for it !  ::)
I've got a 64bit workstation that runs 32bit OS
I've got multiple gigs of ram, but can only use 1 / application (thnx WinXP)

I am slowly growing numb of frustration of all those crashes  :-\
Title: Re: big size image. Memory crash
Post by: guest84672 on March 19, 2013, 03:14:48 PM
Can you try and turn off "effects"? I just talked to Henrik about it and he is convinced that this will fix it.
Title: Re: big size image. Memory crash
Post by: PhilippeV8 on March 20, 2013, 12:00:32 AM
You mean under "Preferences/Advanced/Advanced/Graphics effects" ?

I'll try that.

(What does it do ?)
Title: Re: big size image. Memory crash
Post by: DriesV on March 20, 2013, 01:21:48 AM
Quote from: PhilippeV8 on March 19, 2013, 02:08:38 PM
It's time for many upgrades ... and so it has been for +2j ...
...
I am slowly growing numb of frustration of all those crashes  :-\

Philippe, not kidding on this one.
I was in the same boat for a while +/- 1.5 years ago.
Working with SolidWorks assemblies with hun-dreds of configurations, easily pushing +2GB memory for SLDWORKS.exe alone. ???
Constant crashes were driving me mad.

I also bumped into Windows 7 64bit implementation reluctance. ::)
What helped me to get a better workstation and modern OS was to make a cost-benefit analysis (CBA). Just like I had to make them in college to evaluate the soundness of investments for ALL stakeholders. ;)
I actually made a spreadsheet, comparing the cost of a new workstation (and accompanying load on IT) to the the time I would win working on projects. A week later I was on W7 x64.

I can really recommend doing that. Try to get IT and finance on board from the get-go.
You have to emphasize that YOU are the expert in your domain for your company. Because frankly, IT probably has no clue about what you're doing. :)
It depends a bit on the company culture and structure too. One advantage I have is that R&D is a relatively small group of people (meaning: not far from being understaffed ;)). I guess the smaller the team is, the smaller the 'tolerance for wasted time' is. ;D At least that's my theory about it.

In all fairness...and I'll just put it bluntly:
Judging by the work that you do, working with the assemblies that you have...it's a disgrace that you can't work on a modern 64 bit OS. Like you said: the OS is crippling the hardware potential. :o

Dries
Title: Re: big size image. Memory crash
Post by: KeyShot on March 20, 2013, 09:51:26 AM
Hi Philippe,

It is effects under settings (bloom and vignetting). These require a post-process on the framebuffer, so even if you use exr output they require the full framebuffer in memory, which I think is why you see the memory request when you press the render button.
Title: Re: big size image. Memory crash
Post by: PhilippeV8 on March 20, 2013, 07:30:24 PM
Thnx, I will check.

I rarely use those so I doub't they're turned on.  But I will check tomorrow.

(It's 3.33 in the night here ... I'm up cus my youngest won't sleep  :-\ )