If i understand correctly what causes flickers when using jitter in
animation, then fixing the problem is a simple task of making the
pseudo-random jitter offset of a super-sample a function of the
super-sample's [pre-jitter] position on the screen.

in order to make it consistent for all frames.

for example if the super-sample position is 612 and 1/5th pixels from the
left and 82 pixels from the top you could deterministically derive a random
number from that value.

(or however their positions are internally represented)

doesn't seem like it would be too hard, there are no drawbacks, and you
could use jitter with animation flicker-free.

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inhahe wrote:
> If i understand correctly what causes flickers when using jitter in
> animation, then fixing the problem is a simple task of making the
> pseudo-random jitter offset of a super-sample a function of the
> super-sample's [pre-jitter] position on the screen.

This is the wrong group for this question.  This group is for discussion of
the POV-Ray source code.  POV-Ray feature suggestions should be posted in
povray.general. Platform-specific suggestions - that includes everything GUI
related or requests for GUI additions - should be posted in the group for
the appropriate platform.  Questions about using the POV-Ray should be asked
in either povray.general or povray.newusers.  Platform specific questions
should be asked in povray.windows, povray.unix or povray.macintosh .

     Thorsten


____________________________________________________
Thorsten Froehlich
e-mail: mac### [at] povrayorg

I am a member of the POV-Ray Team.
Visit POV-Ray on the web: http://mac.povray.org

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> This is the wrong group for this question.

This happens a lot. Have you considered changing the name of the group to
something like povray.source-code?

 - Slime
 [ http://www.slimeland.com/ ]

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Slime <fak### [at] emailaddress> wrote:
> This happens a lot. Have you considered changing the name of the group to
> something like povray.source-code?

  Do you really think that will help?

  In fact, I can't think of any short name which would not cause problems.
The only name which starts being more unambiguous would be like
povray.programming-povray-c++-source-not-the-sdl
which would be rather cumbersome.

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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Warp wrote:
> Slime <fak### [at] emailaddress> wrote:
> 
>>This happens a lot. Have you considered changing the name of the group to
>>something like povray.source-code?
> 
> 
>   Do you really think that will help?
> 
>   In fact, I can't think of any short name which would not cause problems.
> The only name which starts being more unambiguous would be like
> povray.programming-povray-c++-source-not-the-sdl
> which would be rather cumbersome.
> 

What about povray.developers ?


-- 
~Mike

Things! Billions of them!

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Mike Raiford wrote:
> What about povray.developers ?

Don't you "develop" your scenes? ;-)

	Thorsten

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Thorsten Froehlich wrote:
>
> Don't you "develop" your scenes? ;-)
> 
>     Thorsten

Only if they're on film :)

-- 
~Mike

Things! Billions of them!

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Mike Raiford <mra### [at] hotmailcom> wrote:
> What about povray.developers ?

  Might deter a bit more efficiently, but is still not unambiguous. :P

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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Warp wrote:
> 
>   In fact, I can't think of any short name which would not cause problems.
> The only name which starts being more unambiguous would be like
> povray.programming-povray-c++-source-not-the-sdl
> which would be rather cumbersome.

Actually i think the problem is mostly that there is very few on topic 
discussion in this group most of the time.  For unofficial patches there 
is a separate group and talks about official development mostly happen 
elsewhere as well.  So this is just questions about the source and 
answering them.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 23 Sep. 2004 _____./\/^>_*_<^\/\.______

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