Here's my first attempt at using media to render molecular electron density.
I have learned a new appreciation for the work SLOW in doing this rendering.

I'd like to ask all the media wizards, how can I get this to render much
faster than 20 minutes?  I've included the pov and df3 files in the attached
zip archive.  Any help would be greatly appreciated.  I need this to render
much faster for general application development and debugging purposes.
Once the application is done, rendering times of 20 minutes  would be no
problem.

Also, thanks to Stephen Lavedas and Ken Tyler for some help in figuring out
how to directly generate the df3 file from my isosurface rendering code.

Jim

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Attachments:
Download 'oxide.jpg' (28 KB) Download 'testout_B.zip' (40 KB)

Preview of image 'oxide.jpg'

Oh yeah, bet you didn't know molecules were furry, did you?

Jim

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I got 2 min 19 sec for a 160x120 res rendering as is.
I changed the variance to 1/100 and confidence to 0.9 and got a 38 sec.
render, or almost 1/4 the time.
Not much noticeable difference in appearance I think.
And dropping intervals and samples down is like lightning speed by
comparison if you are into the media grain sort of thing ;)
'intervals' is the major speed factor next to the minimum samples
number. As long as these two stay low, ie. intervals 5 samples
1,whatever then your okay. But you'll certainly have that peppered look!
Actually the samples maximum makes little difference in speed.


Jim Kress wrote:
> 
> Here's my first attempt at using media to render molecular electron density.
> I have learned a new appreciation for the work SLOW in doing this rendering.
> 
> I'd like to ask all the media wizards, how can I get this to render much
> faster than 20 minutes?  I've included the pov and df3 files in the attached
> zip archive.  Any help would be greatly appreciated.  I need this to render
> much faster for general application development and debugging purposes.
> Once the application is done, rendering times of 20 minutes  would be no
> problem.
> 
> Also, thanks to Stephen Lavedas and Ken Tyler for some help in figuring out
> how to directly generate the df3 file from my isosurface rendering code.
> 
> Jim

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.htm
 mailto:inv### [at] aolcom?PoV

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Thanks!

My 20 min was at 640x480 no aa.  Your hints should really help.

--
Jim

Check out my web site http://www.kressworks.com/
It'll blow your mind (politically), stimulate your senses (artistically)
and provide scientific insights beyond compare!

Be sure to read the Warp maintained POV VFAQ:
http://iki.fi/warp/povVFAQ.html




Bob Hughes wrote in message <36E36776.663C6A4F@aol.com>...
>I got 2 min 19 sec for a 160x120 res rendering as is.
>I changed the variance to 1/100 and confidence to 0.9 and got a 38 sec.
>render, or almost 1/4 the time.
>Not much noticeable difference in appearance I think.
>And dropping intervals and samples down is like lightning speed by
>comparison if you are into the media grain sort of thing ;)
>'intervals' is the major speed factor next to the minimum samples
>number. As long as these two stay low, ie. intervals 5 samples
>1,whatever then your okay. But you'll certainly have that peppered look!
>Actually the samples maximum makes little difference in speed.
>
>
>Jim Kress wrote:
>>
>> Here's my first attempt at using media to render molecular electron
density.
>> I have learned a new appreciation for the work SLOW in doing this
rendering.
>>
>> I'd like to ask all the media wizards, how can I get this to render much
>> faster than 20 minutes?  I've included the pov and df3 files in the
attached
>> zip archive.  Any help would be greatly appreciated.  I need this to
render
>> much faster for general application development and debugging purposes.
>> Once the application is done, rendering times of 20 minutes  would be no
>> problem.
>>
>> Also, thanks to Stephen Lavedas and Ken Tyler for some help in figuring
out
>> how to directly generate the df3 file from my isosurface rendering code.
>>
>> Jim
>
>--
> omniVERSE: beyond the universe
>  http://members.aol.com/inversez/POVring.htm
> mailto:inv### [at] aolcom?PoV

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What about using the other use of the df3 files?  You could test using
the surface properties (the other demo file, density.pov I think) the
render on that one was MUCH faster than galaxy.pov....

Steve


Jim Kress wrote:
> 
> Here's my first attempt at using media to render molecular electron density.
> I have learned a new appreciation for the work SLOW in doing this rendering.
> 
> I'd like to ask all the media wizards, how can I get this to render much
> faster than 20 minutes?  I've included the pov and df3 files in the attached
> zip archive.  Any help would be greatly appreciated.  I need this to render
> much faster for general application development and debugging purposes.
> Once the application is done, rendering times of 20 minutes  would be no
> problem.
> 
> Also, thanks to Stephen Lavedas and Ken Tyler for some help in figuring out
> how to directly generate the df3 file from my isosurface rendering code.
> 
> Jim
> 
>  [Image]
> 
>                     Name: testout_B.zip
>    testout_B.zip    Type: Zip Compressed Data (application/x-zip-compressed)
>                 Encoding: x-uuencode

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Hmmm ...  I didn't notice that one.  I'll give it a shot!

Thanks!

--
Jim

Check out my web site http://www.kressworks.com/
It'll blow your mind (politically), stimulate your senses (artistically)
and provide scientific insights beyond compare!

Be sure to read the Warp maintained POV VFAQ:
http://iki.fi/warp/povVFAQ.html




Stephen Lavedas wrote in message <36E410D3.DB7F1E17@virginia.edu>...
>What about using the other use of the df3 files?  You could test using
>the surface properties (the other demo file, density.pov I think) the
>render on that one was MUCH faster than galaxy.pov....
>
>Steve
>
>
>Jim Kress wrote:
>>
>> Here's my first attempt at using media to render molecular electron
density.
>> I have learned a new appreciation for the work SLOW in doing this
rendering.
>>
>> I'd like to ask all the media wizards, how can I get this to render much
>> faster than 20 minutes?  I've included the pov and df3 files in the
attached
>> zip archive.  Any help would be greatly appreciated.  I need this to
render
>> much faster for general application development and debugging purposes.
>> Once the application is done, rendering times of 20 minutes  would be no
>> problem.
>>
>> Also, thanks to Stephen Lavedas and Ken Tyler for some help in figuring
out
>> how to directly generate the df3 file from my isosurface rendering code.
>>
>> Jim
>>
>>  [Image]
>>
>>                     Name: testout_B.zip
>>    testout_B.zip    Type: Zip Compressed Data
(application/x-zip-compressed)
>>                 Encoding: x-uuencode

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