Re: Physics Animation - Flying Doritos Bag [New file uploaded to Carra 2004-04-20 - By ccoles_avengers
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Hi Todd,
Thanks for the info. I was just trying to gauge if my renders were in
the same ballpark as far as render time goes (although I know that CPU
speed makes a big difference -- mine is a P4 at 1.7Ghz). Actually, I
like rendering my physics clips at 24 fps (more out of tradition if
not anything else).
The parametric texturing looks really nice with the bag object and I
like your choice of HDRI lighting. I try to use a simple one-light
approach myself to attempt a "realistic" feel (take a look at my "Acua
Monti" and "Taking a Puzzle Break" [orange-mirror-milk-candle-puzzle]
still images in April 2004 edition of 3dXtract magazine] to see what I
mean), but I should probably look into doing HDRI lighting schemes too
to check out the differences.
Well, keep up the good work. :) Always nice to see other "physics"
animators at work [if you can't already tell, I'm partial to physics
animations :) ].
Cheers.
Claudia
"Selocic"
(a newbie)
--- In Carrara@(protected), "ctd142000" <cdavis@(protected)> wrote:
> Claudia,
>
> Thanks, I'd say the render time was about 8hrs but the pixel
> dimensions were 640x480 and I used C's depth of field...15fps saved
> to AVI uncompressed.
>
> I used shading domains (2 pieces)and used parametric mapping for each
> half.
>
> I UV mapped it too, but if I remember right that was my first
> approach but I remember having some problems with that...I think it
> was when I was trying to deform the object (bones)
>
> Todd
>
>
> --- In Carrara@(protected), "ccoles_avengers" <ccoles_shado@(protected)>
> wrote:
> > Excellent work, Todd! I've recently taken a recess from physics
> > animations due to my workload on other projects, but this is
> inspiring
> > me to start back up again. :)
> >
> > Couple of quick questions - how long did the file take to render?
> Was
> > 320 x 240 and MOV the original render size and format? Also, what
> did
> > you use to texture the bag? Was it UV mapping?
> >
> > Cheers.
> >
> > Claudia
> > "Selocic"
> > (a newbie)
> >
> > --- In Carrara@(protected), cdavis@(protected) wrote:
> > >
> > >
> > >
> > >
> > >
> > > Dave,
> > >
> > > Not difficult at all, with a total of 3 objects that have physics
> > applied
> > > to them. The ball, bag and lever. So yes, physics here are doing
> > everything
> > > except for the flap movement which is key framed. If you have used
> > physics
> > > at all before you may know that sometimes you need to fiddle
> around
> > a bit
> > > to get the results you want, sometimes it takes a lot of fiddling
> > just to
> > > get it to work, but what I mean about fiddling is that if you just
> > in this
> > > case move the bag in any direction slightly the results could be
> > > dramatically different. The lever in this case was a little
> > difficult since
> > > the fulcrum is a shaft that spins in a bearing on the mount and
> you
> > need to
> > > make the hole that the shaft spins in somewhat larger than the
> shaft ,
> > > physics was giving very undesirable results when the tolerances
> were too
> > > tight where the shaft and hole interact (part of the fiddling
> around I
> > > mentioned).
> > >
> > > I set up the ball, bag and lever initially then ran the physics,
> > watched it
> > > and adjusted my objects a couple of times then when I saw what I
> wanted,
> > > unchecked enable physics (scene properties). Unchecking allows you
> > to play
> > > the last physics calculation result without recalculating it, with
> > that I
> > > was able to place the box exactly where I wanted. Then I added in
> > the flap
> > > movement and rendered.
> > >
> > > I rendered it using HDRI skylight, no interpolation, good lighting
> > quality,
> > > good AI.
> > >
> > > Todd
> > >
> > >
> > >
> > >
> > > |-- ------+-- ---- ---- ---- ---- ---->
> > > | | davidj@(protected)|
> > > | | er.com |
> > > | | |
> > > | | 04/19/2004 01:22|
> > > | | PM |
> > > | | Please respond |
> > > | | to Carrara |
> > > | | |
> > > |-- ------+-- ---- ---- ---- ---- ---->
> > >
> > >-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----|
> > >
> |
> > |
> > > | To:
> <Carrara@(protected)>
> > |
> > > |
> cc:
> > |
> > > | Subject: RE: [Carrara] New file uploaded to
> Carrara
> > |
> > >
> > >-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----|
> > >
> > >
> > >
> > > Ok, cdavis, that was cool (i never use that word but it seems
> > appropriate
> > > here). Was it terribly difficult to set up? Also are 'physics'
> > handling
> > > the spinning of the bag or just the bags reaction to hitting the
> flap of
> > > the
> > > box? If you've got it in you, a little blurb about what's at work
> > in the
> > > whole file would be great.
> > >
> > > Dave
> > >
> > >
> > >
> > >
> > > Special $30 OFF transposer until April 16, 2004.
> > >
> > > http://www.eovia.com/offers/yahoo.jsp
> > >
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