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From: clipka
Subject: Smaller Spheres
Date: 7 Aug 2016 04:21:12
Message: <57a6b738$1@news.povray.org>
Significantly reduced memory footprint of spheres subject to
transformations (translate, rotate, scale, transform):

https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8730959

Needs plenty of testing, especially with regards to UV mapping and wild
combinations of the various transformation statements.


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From: clipka
Subject: Re: Smaller Spheres
Date: 9 Aug 2016 22:13:35
Message: <57aa558f$1@news.povray.org>
Am 07.08.2016 um 06:21 schrieb clipka:
> Significantly reduced memory footprint of spheres subject to
> transformations (translate, rotate, scale, transform):
> 
> https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8730959
> 
> Needs plenty of testing, especially with regards to UV mapping and wild
> combinations of the various transformation statements.

No takers this time?


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From: Stephen
Subject: Re: Smaller Spheres
Date: 9 Aug 2016 22:24:24
Message: <57aa5818$1@news.povray.org>
On 8/9/2016 11:13 PM, clipka wrote:
> Am 07.08.2016 um 06:21 schrieb clipka:
>> Significantly reduced memory footprint of spheres subject to
>> transformations (translate, rotate, scale, transform):
>>
>> https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8730959
>>
>> Needs plenty of testing, especially with regards to UV mapping and wild
>> combinations of the various transformation statements.
>
> No takers this time?
>


There is a world shortage of Round Toits. :(

-- 

Regards
     Stephen


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From: clipka
Subject: Re: Smaller Spheres
Date: 9 Aug 2016 23:02:54
Message: <57aa611e$1@news.povray.org>
Am 10.08.2016 um 00:24 schrieb Stephen:
> On 8/9/2016 11:13 PM, clipka wrote:
>> Am 07.08.2016 um 06:21 schrieb clipka:
>>> Significantly reduced memory footprint of spheres subject to
>>> transformations (translate, rotate, scale, transform):
>>>
>>> https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8730959
>>>
>>> Needs plenty of testing, especially with regards to UV mapping and wild
>>> combinations of the various transformation statements.
>>
>> No takers this time?
>>
> 
> 
> There is a world shortage of Round Toits. :(

Might be the Brazilians' fault.


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From: Stephen
Subject: Re: Smaller Spheres
Date: 9 Aug 2016 23:21:30
Message: <57aa657a$1@news.povray.org>
On 8/10/2016 12:02 AM, clipka wrote:
> Am 10.08.2016 um 00:24 schrieb Stephen:
>> On 8/9/2016 11:13 PM, clipka wrote:
>>> Am 07.08.2016 um 06:21 schrieb clipka:
>>>> Significantly reduced memory footprint of spheres subject to
>>>> transformations (translate, rotate, scale, transform):
>>>>
>>>> https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8730959
>>>>
>>>> Needs plenty of testing, especially with regards to UV mapping and wild
>>>> combinations of the various transformation statements.
>>>
>>> No takers this time?
>>>
>>
>>
>> There is a world shortage of Round Toits. :(
>
> Might be the Brazilians' fault.
>

[Pulls pants down.]

Nope!  ;)

-- 

Regards
     Stephen


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From: Bald Eagle
Subject: Re: Smaller Spheres
Date: 10 Aug 2016 00:40:06
Message: <web.57aa77ddc5ad69015e7df57c0@news.povray.org>
clipka <ano### [at] anonymousorg> wrote:
> Am 07.08.2016 um 06:21 schrieb clipka:
> > Significantly reduced memory footprint of spheres subject to
> > transformations (translate, rotate, scale, transform):

> No takers this time?

I have it downloaded - I just need to "install" it.

I'll get on it in a little while - It's shaped up to be a busy week.
Just had a molar extracted, looking for an apartment, have a wheelchair to pick
up for a disabled friend, etc ....

I'll see what I can dream up and let loose.
I'm sure I can come up with something utilizing a few million spheres.  ;)

And thank you for making that edit to the code - I'm very curious to see the
difference in memory usage.


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From: architype
Subject: Re: Smaller Spheres
Date: 10 Aug 2016 03:50:00
Message: <web.57aaa3c4c5ad6901b8fe400c0@news.povray.org>
clipka <ano### [at] anonymousorg> wrote:
> Am 07.08.2016 um 06:21 schrieb clipka:
> > Significantly reduced memory footprint of spheres subject to
> > transformations (translate, rotate, scale, transform):
> >
> > https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8730959
> >
> > Needs plenty of testing, especially with regards to UV mapping and wild
> > combinations of the various transformation statements.
>
> No takers this time?

Unfortunately I am busy with a big project that is supposed to be finished
within the next 4 weeks...
But I really appreciate all the work you do, so I will see if I can do at least
some small scene.
I can think of some stuff that would be fun to try out... ;)
Here is a first mini scene, rusticated stones. I can post the code, but I cannot
render it with your
new version since my pov-ray dir is in use. (Cranking out animation frames.)
Best wishes, /A

Hmmm, I cannot attach files here... *goes over to blog* ... here is the link:
http://povscriptcode.site123.me/


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From: clipka
Subject: Re: Smaller Spheres
Date: 11 Aug 2016 21:46:54
Message: <57acf24e$1@news.povray.org>
Am 07.08.2016 um 06:21 schrieb clipka:
> Significantly reduced memory footprint of spheres subject to
> transformations (translate, rotate, scale, transform):
> 
> https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8730959
> 
> Needs plenty of testing, especially with regards to UV mapping and wild
> combinations of the various transformation statements.

Found and fixed one bug already, so a new version is waiting to be tested:

https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8737777


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From: architype
Subject: Re: Smaller Spheres
Date: 12 Aug 2016 04:55:00
Message: <web.57ad5650c5ad69016b88bdd50@news.povray.org>
clipka <ano### [at] anonymousorg> wrote:
> Am 07.08.2016 um 06:21 schrieb clipka:
> > Significantly reduced memory footprint of spheres subject to
> > transformations (translate, rotate, scale, transform):
> >
> > https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8730959
> >
> > Needs plenty of testing, especially with regards to UV mapping and wild
> > combinations of the various transformation statements.
>
> Found and fixed one bug already, so a new version is waiting to be tested:
>
> https://github.com/POV-Ray/povray/releases/tag/v3.7.1-alpha.8737777

I have done a first test; but I need to make a better test scene with
more transformations, more objects and spheres only.
Anyway, there were improvements in memory and parsing.
But also a big improvement in render time. :D
I will make a better test scene and get back to you.
Thanks a lot for the great work!
Best wishes, /A

scene: 2 287 195 objects + 1 light

std ver:

1600x1200
parse time 11.6 sec
bounding time 34.3 sec
rnder time 4m 49s
peak memory used  1 612 890 112 bytes

tst ver:

1600x1200
parse time 9.0 sec
bounding time 33.8 sec
rnder time 3m 31s
peak memory used  1  494 773 760 bytes


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From: architype
Subject: Re: Smaller Spheres
Date: 12 Aug 2016 05:40:00
Message: <web.57ad60e3c5ad69016b88bdd50@news.povray.org>
Hmmm I ran the standard version again, this time it took 3m 38s.
But it used 1 847 226 368 bytes. So only a small improvement in
render time, but a significant reduction in memory.
(I am not sure why I got the longer render time for the standard
version, some stuff might have been running in the background?)
I ran the test version again and it is about 1 490 000 000 bytes.
I will write a better test scene and post it as soon as I can.
Best wishes, /A


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