I haven't really posted or read many of the messages in this group, but
(correct me if I'm wrong) I figured this was the group where I should
ask about features of MegaPov.  Is there a way you can motion blur a
whole scene?  What I need is a motion blur that affects the whole scene,
not just specific objects.  Additionally, I was hoping there was a way
to do this without reparsing the whole scene.  I'm doubtful that this is
possible, but is there any way to accomplish this?

 - Rico

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"Reusser" <reu### [at] chorusnet> wrote in message
news:3B16E154.4ADC2221@chorus.net...
> (correct me if I'm wrong) I figured this was the group where I should
> ask about features of MegaPov.

Right place, yep.

>   Is there a way you can motion blur a
> whole scene?  What I need is a motion blur that affects the whole scene,
> not just specific objects.  Additionally, I was hoping there was a way
> to do this without reparsing the whole scene.  I'm doubtful that this is
> possible, but is there any way to accomplish this?

Bracket the scene with motion_blur, minus the camera and global_settings
(which includes the setup for blur) and possibly any or all lights too (they
don't blur I guess).
Should be possible as long as all the objects are included.
Also, the variable(s) used to do the movements needs to be a part of it, not
outside of it, or they don't get used.  That's been my experience anyhow.
I might be leaving something out and if so maybe someone else will speak up.
Can try that in the meantime anyhow.

Bob H.

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"Bob H." <omn### [at] msncom> wrote...
> "Reusser" <reu### [at] chorusnet> wrote in message
> news:3B16E154.4ADC2221@chorus.net...
> > (correct me if I'm wrong) I figured this was the group where I should
> > ask about features of MegaPov.
>
> Right place, yep.
>
> >   Is there a way you can motion blur a
> > whole scene?  What I need is a motion blur that affects the whole scene,
> > not just specific objects.  Additionally, I was hoping there was a way
> > to do this without reparsing the whole scene.  I'm doubtful that this is
> > possible, but is there any way to accomplish this?
>
> Bracket the scene with motion_blur, minus the camera and global_settings
> (which includes the setup for blur) and possibly any or all lights too
(they
> don't blur I guess).

Also, if you plan to move the camera, just move the rest of the scene in the
opposite direction instead.

-Nathan

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Nathan Kopp <nat### [at] koppcom> wrote:
> Also, if you plan to move the camera, just move the rest of the scene in
the
> opposite direction instead.
>
> -Nathan


What about a post-process?  3D Studio uses a filter after rendering to do
scene motion blur...the result is amazing!
To do this, you need only the camera positions of last and next frames to do
the calculation.

Paul

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"Nathan Kopp" <nat### [at] koppcom> wrote in message
news:3b16f573$1@news.povray.org...
>
> Also, if you plan to move the camera, just move the rest of the scene in
the
> opposite direction instead.
>

So is that a way to fake camera motion blur?

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In article <3b189d58@news.povray.org>,
 "Paul Blaszczyk" <3d### [at] alpharayde> wrote:

> What about a post-process?  3D Studio uses a filter after rendering to do
> scene motion blur...the result is amazing!

It is not possible to do correct motion blur through a post_process 
filter, some of the information is simply missing.


> To do this, you need only the camera positions of last and next frames to do
> the calculation.

Then it won't be useful for a post_process filter, which only has data 
for the current frame. I believe there are external utilities for doing 
this, though...

-- 
Christopher James Huff - chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><

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Paul Blaszczyk <3d### [at] alpharayde> wrote:
: What about a post-process?  3D Studio uses a filter after rendering to do
: scene motion blur...the result is amazing!

  I would really like to hear how do you calculate a post-process motion
blur of a rotating object (or the camera rotating around the object).

-- 
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -

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