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Is there a way for motion blur between frames of animation in POV, like in
commercial animation apps?
In any way, using raytrace sampling of time, or simply 2d fast-rough motion
blur by comparation of images.... anything....
I don't think of 'static' motion blur well known from megaPOV.
Regarding previous posts about POV in production workflow, this seems to me
the most serious problem.
POV with SDL and tons of mathematical shapes, theoreticaly :) looks like a
powerfull tool for procedural (non hand made) animation...
effects, explosions, clouds, waterfalls, mechanics.... everything *except*
character animation with bones etc.
Anto
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In article <3fed5d1b@news.povray.org>,
"Anto Matkovic" <ant### [at] matkovic com> wrote:
> Is there a way for motion blur between frames of animation in POV, like in
> commercial animation apps?
In the official version, the only way to do motion blur is to post
process several frames together.
> In any way, using raytrace sampling of time, or simply 2d fast-rough motion
> blur by comparation of images.... anything....
> I don't think of 'static' motion blur well known from megaPOV.
I'm not sure what you're thinking of here. The MegaPOV motion blur was
real motion blur, done by sampling the object at different times.
> Regarding previous posts about POV in production workflow, this seems to me
> the most serious problem.
The lack of motion blur is the most serious problem with using POV in a
production workflow?
> POV with SDL and tons of mathematical shapes, theoreticaly :) looks like a
> powerfull tool for procedural (non hand made) animation...
> effects, explosions, clouds, waterfalls, mechanics.... everything *except*
> character animation with bones etc.
What does boned animation have to do with motion blur?
--
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/
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> > Is there a way for motion blur between frames of animation in POV, like
in
> > commercial animation apps?
>
> In the official version, the only way to do motion blur is to post
> process several frames together.
>
So how I can post-process several frames together, efficiently, just with
POV?. I remeber winner of 'physics and math' IRCT round,
http://www.irtc.org/stills/1997-06-30.html , or
http://oz.irtc.org/ftp/pub/stills/1997-06-30/chainrea.txt but the way used
there isn't very efficient...
>
> I'm not sure what you're thinking of here. The MegaPOV motion blur was
> real motion blur, done by sampling the object at different times.
>
I know that, I was using that, but I need sampling between frames...
>
> The lack of motion blur is the most serious problem with using POV in a
> production workflow?
>
Well, I used POV in production workflow, for static backgrounds for video
games - not very seriuous :)... because 3dsMax 3 in my firm was very
strange for me in these times, for doing something realistic. We were
thinking
about POV for animations without characters, and we found that is possible
to do rendered passes
by object-layer with different inc files , even color passes with some
adjusting of materials. Just for example, everyone who downloaded a free
Softimage XSI EXP demo knows that this app. doing color passes just by
'overriding' the materials....POV-Ray rendering speed was a quite OK.... But
motion blur was a really problem.....
I do not using POV today in my job, beacuse there is a free vRay for Max,
with blazingly fast radiosity, and it's a raytracer...
Oh sure, there are a lot of other problems for using in production, I think
the most serious is: POV cost nothing, it's a simply out of market...
>
>
> What does boned animation have to do with motion blur?
Nothing :), except this kind of motion blur is usually hardest to compute,
because app. need to calculate positions of all vertices, instead of
position of whole object ; only I want to say that this kind of animation
have no sense with POV, especially when we have a free Blender...
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In article <3fee25d3@news.povray.org>,
"Anto Matkovic" <ant### [at] matkoviccom> wrote:
> So how I can post-process several frames together, efficiently, just with
> POV?.
You can't. POV is a 3D rendering program, not a 2D compositing tool.
There are several external tools that can be used to do this far more
efficiently than can be done with POV...all you need to do is average
the frames together.
> > I'm not sure what you're thinking of here. The MegaPOV motion blur was
> > real motion blur, done by sampling the object at different times.
> >
> I know that, I was using that, but I need sampling between frames...
The motion blur algorithm used in MegaPOV was completely independent of
the animation frames. It was perfectly capable of blurring a single
frame, and of taking samples between frames.
--
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/
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> You can't. POV is a 3D rendering program, not a 2D compositing tool.
Well, technically, you could. It wouldn't be entirely easy, but certainly
possible. With an orthographic camera and some planes in front of it, each
with a texture map and a set transparency, in theory I think it could be
done. It might even be possible to write a macro which takes a base filename
and a number of frames and averages the given files.
- Slime
[ http://www.slimeland.com/ ]
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> > You can't. POV is a 3D rendering program, not a 2D compositing tool.
>
> Well, technically, you could. It wouldn't be entirely easy, but certainly
> possible. With an orthographic camera and some planes in front of it, each
> with a texture map and a set transparency, in theory I think it could be
> done. It might even be possible to write a macro which takes a base
filename
> and a number of frames and averages the given files.
Exactly and I've already written such 2d-compositing macros, that are pixel
accurate and can be used to blend images in various ways (overlay, screen,
etc like a paintprogram). The reason I did this, is because POV gives me
*much* more 2d-animation flexibility than any paintprogram I can think of...
I will post the macros on "povray.binaries.scene-files" in case anyone is
interested.
Regarding the motion blur - well - it will be time consuming to render the
extra amount of frames. You'd need at least 2 times more, and for fast
movements maybe 3 or more.
Regards,
Hugo
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In article <3fefaf9e@news.povray.org>, "Slime" <fak### [at] emailaddress>
wrote:
> > You can't. POV is a 3D rendering program, not a 2D compositing tool.
>
> Well, technically, you could. It wouldn't be entirely easy, but certainly
> possible. With an orthographic camera and some planes in front of it, each
> with a texture map and a set transparency, in theory I think it could be
> done. It might even be possible to write a macro which takes a base filename
> and a number of frames and averages the given files.
No, you can't. He specifically said (emphasis mine):
> So how I can post-process several frames together, *efficiently*, just with
> POV?.
You only need one plane (a box would probably be better) with an average
texture...but it is far from efficient.
--
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/
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> I will post the macros on "povray.binaries.scene-files"
Done.
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Why use POV to composite images. I know it can be done. POV is a programming
system. The raytracer proved that. POV was not written to be a image
processing system. You should find a program that is intended for this
purpose. If you want to do post production with out paying for it just use
imagemagik. Works wonderfully.
It is available on both windows and Linux and I am sure for the MAC as well.
"Christopher James Huff" <cja### [at] earthlinknet> wrote in message
news:cja### [at] netplexaussieorg...
> In article <3fefaf9e@news.povray.org>, "Slime" <fak### [at] emailaddress>
> wrote:
>
> > > You can't. POV is a 3D rendering program, not a 2D compositing tool.
> >
> > Well, technically, you could. It wouldn't be entirely easy, but
certainly
> > possible. With an orthographic camera and some planes in front of it,
each
> > with a texture map and a set transparency, in theory I think it could be
> > done. It might even be possible to write a macro which takes a base
filename
> > and a number of frames and averages the given files.
>
> No, you can't. He specifically said (emphasis mine):
>
> > So how I can post-process several frames together, *efficiently*, just
with
> > POV?.
>
> You only need one plane (a box would probably be better) with an average
> texture...but it is far from efficient.
>
> --
> Christopher James Huff <cja### [at] earthlinknet>
> http://home.earthlink.net/~cjameshuff/
> POV-Ray TAG: <chr### [at] tagpovrayorg>
> http://tag.povray.org/
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I'll try, thanks.. I was browsing for hours and couldn't find anything
useful.. If this program can do batch-processing and script various
processes, I'll be delighted.
I just had a look.. Seems like a library of DOS tools? :-/
Regards,
Hugo
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