POV-Ray : Newsgroups : povray.newusers : Camera, object, and spline animation... : Re: Camera, object, and spline animation... Server Time
28 Jul 2024 16:30:08 EDT (-0400)
  Re: Camera, object, and spline animation...  
From: Jan Dvorak
Date: 22 Mar 2008 03:44:31
Message: <47e4c6ef$1@news.povray.org>
this is me napsal(a):
> Hello,
> 
> I've started to play around with Chris Colefax's spline macro, and here's what
> I'm trying to do, and what I've noticed:
> 
> What I've done is define a spline - no problem there - a shiny metal sphere to
> look at, and a camera - again, no problems here either.  I've placed the metal
> sphere 5 units in the z direction, and the camera -15 units in the z direction
> (x and y for each are, of course, 0 and 0).  Then, I animate both along the
> spline according to Chris' tutorial.  Note that I use different values of auto
> banking for each.  My goal here is to try to get some sort of chasing effect
> where the sphere wobbles a little to the left and right around corners as the
> camera trails (also wobbling a little to the left and right).
> 
> What I've noticed is the sphere stays dead center in frame, for a rather boring
> and unrealistic chase scene.  So, my questions are:  Is my logic right
> regarding the effect of the offsets, and of not, how would one place the camera
> and sphere so the sphere appears to moves off axis as it races along the spline.
> 
> 
> 
I don't know the macro but you may do this by looking behind the sphere.
What the brain actually does is that it predicts (based on a linear 
extrapolation) the object's position and looks there.

-- 
the ultimate time-killer:
+a0.0 +am2 +r9

Johnny D


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