I am about to start my first animation project with POVRay,
is there a way to simulate motion-blur, since I haven't seen
an Include file for it... Is there a way to blur a specific object?

Peter

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Peter & Kara-Jane Ketting (pjo### [at] w-linknet) wrote:
: Is there a way to blur a specific object?

  No. (you can of course make a fake blur, but it's not easy, the result is
not perfect and is prohibitely slow to calculate). Maybe future povray versions
will do that?

--
                                                              - Warp. -

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Peter & Kara-Jane Ketting wrote:
> 
> I am about to start my first animation project with POVRay,
> is there a way to simulate motion-blur, since I haven't seen
> an Include file for it... Is there a way to blur a specific object?
> 
> Peter

You probably won't care, but BMRT does this i think. I don't use it, so
you would have to check out the home page at 
http://www.seas.gwu.edu/student/gritz/bmrt.html

This set of programs seems really cool, but I don't feel like starting
over again quite yet with a new renderer and stuff.

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You caould add motion blur to a selected object using Paintshop Pro, but
you'd have to load, blur, and save each frame manually.

--Gary.

Nieminen Mika <war### [at] cctutfi> wrote in article
<6j72cq$4fk$3@oz.aussie.org>...
> Peter & Kara-Jane Ketting (pjo### [at] w-linknet) wrote:
> : Is there a way to blur a specific object?
> 
>   No. (you can of course make a fake blur, but it's not easy, the result
is
> not perfect and is prohibitely slow to calculate). Maybe future povray
versions
> will do that?
> 
> --
>                                                               - Warp. -
>

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On Mon, 11 May 1998 06:59:27 GMT, pjo### [at] w-linknet (Peter & Kara-Jane
Ketting) wrote:

>I am about to start my first animation project with POVRay,
>is there a way to simulate motion-blur, since I haven't seen
>an Include file for it... Is there a way to blur a specific object?
>
>Peter
>
I belive Daves Targa Animator (dta) is supposed to be able to provide
motion blur by merging two or more renders with objects moved between
- but I've never seen it work. Maybe you should try it if you're using
a PC?
Cheers,

Cliff Bowman
Why not pay my 3D Dr Who site a visit at
http://www.geocities.com/Area51/Dimension/7855/
PS change ".duffnet" to ".net" if replying via e-mail

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Cliff Bowman <c.b### [at] viginduffnetuk> wrote:
: I belive Daves Targa Animator (dta) is supposed to be able to provide
: motion blur by merging two or more renders with objects moved between
: - but I've never seen it work. Maybe you should try it if you're using
: a PC?

  I made this image using that technique (ie. calculated frames and averaged
them): http://www.iki.fi/warp/pics/Takeoff.jpg
  DTA was unable to handle 40 640x480 pictures. I had to make a little program
to average the images. Maybe I'll post the program here if someone explains
me the uncompressed targa format (I converted the images to raw format with
alchemy for my program).
  Man, it was slow to calculate 40 images! (1h 39min per image in my 486 66MHz)

-- 
                                                              - Warp. -

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Nieminen Mika wrote:
> 
>   I made this image using that technique (ie. calculated frames and averaged
> them): http://www.iki.fi/warp/pics/Takeoff.jpg
>   DTA was unable to handle 40 640x480 pictures. I had to make a little program
> to average the images. Maybe I'll post the program here if someone explains
> me the uncompressed targa format (I converted the images to raw format with
> alchemy for my program).
>   Man, it was slow to calculate 40 images! (1h 39min per image in my 486 66MHz)

Go straight to the horse's mouth

ftp://ftp.truevision.com/pub/TGA.File.Format.Spec/

Simple answer:
18 byte header
+ 0-255 bytes of additional info (rarely used)
+ palette if present
+ pixels.

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Peter & Kara-Jane Ketting wrote:
> 
> I am about to start my first animation project with POVRay,
> is there a way to simulate motion-blur, since I haven't seen
> an Include file for it... Is there a way to blur a specific object?
> 
> Peter

You might be able to do it be rendering 2 (or more) images from the
animation and merge them together with an imageprocessing program like
photoshop and paintshop pro. A bit awkward way to do it, if you have
photoshop you can define actions that will do it for you.

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