POV-Ray : Newsgroups : povray.binaries.animations : grass blowing in the wind (animation) : Re: grass blowing in the wind (animation) Server Time
16 May 2024 22:39:42 EDT (-0400)
  Re: grass blowing in the wind (animation)  
From: Kenneth
Date: 18 Sep 2010 09:00:00
Message: <web.4c94b67b40e56284196b08580@news.povray.org>
"Tek" <tek### [at] evilsuperbraincom> wrote:
> Looks pretty realistic to me!

Thanks.  I've discovered, over the course of animating various scenes, that a
'bumpy' camera really adds a GREAT deal of realism to even the most mundane
animation. And it has other benefits: Since I usually incorporate some motion
blur (i.e., just 5-to-10 averaged-together frames to get a final one), AND I
usually run my animation without AA (to save MUCH time), the bumpy camera helps
hide the inherent pixel aliasing. For *most* composite frames, anyway. The
result isn't as sharp and clean as it could be, but I can usually live with
that.

> The camera movement's very good is it procedural or following a spline? I
> could swear it's rocking with the camera man's footsteps.

Nope, not a spline in this case, just some animated translation and rotation of
the camera. HOWEVER, the camera's bumpiness *is* done with a spline set-up--a
1-dimensional spline macro . I'm essentially using the spline as an array, just
a holder of a certain number of random values. The animation then picks out
interpolated points from the spline, which are then applied as an additional
small rotation amount of the camera, or as jitter of its position or look_at
point. It's a handy little macro, which I use for lots of different things, not
just camera jitter. I've finally gotten it into a form that's simple,
problem-free and logical in its use, so I'll be posting it soon.

The funny thing about this animated scene is that the cameraman's shadow is
missing! I never even considered that little detail, but it's obvious to me now.

Ken


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