POV-Ray : Newsgroups : povray.general : Media: rendering needs verry long for the last few percent : Re: Media: rendering needs verry long for the last few percent Server Time
24 May 2024 19:28:50 EDT (-0400)
  Re: Media: rendering needs verry long for the last few percent  
From: Alain Martel
Date: 6 May 2022 09:28:25
Message: <62752279$1@news.povray.org>
Le 2022-05-06 à 02:00, Thomas de Groot a écrit :
> Op 05/05/2022 om 23:05 schreef Kenneth:
>> Thorsten <tho### [at] trfde> wrote:
>>> If you want a better distribution of the computational load, you should
>>> decrease the render block size such that your object gets distributed
>>> between multiple render blocks.
>>> Thorsten
>> That works very well, thanks! From my own 'naive' analysis, I had been 
>> wondering
>> if a smaller block size would help, but I never tried it. (For my 
>> tests, I
>> forgot to mention that my media object occupies about 50% of the 
>> screen space--
>> unlike the OP's small object that is probably 'enclosed' by a single 
>> render
>> block.) Your suggestion works in both cases, of course.
>> A smaller render-block size has another great advantage: The scene 
>> renders
>> faster.
>> Here is my example (using scattering media):
>> block size of 64 pixels: 2 mins 16 sec
>> block size of 8 pixels:  1 min 10 sec
>> That's a definite improvement! And my machine's processor seems to run 
>> less hot,
>> based on the cooling-fan speed.
> Ha! Never thought about that 'trick'!
It's highly scene dependent.
On some scenes that already render fast, it can cause the renter time to 
Then, there are cases where it don't have a significant effect.

Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.