Hmmm, looks now like it could use fast/slow changes over the duration of
the roll.
Possibly replace 'clock' with mclock of the Clockmod.inc using a
clock_type="W" or maybe "R" and repeat_clock=2. Not sure what would go
best. R, J, W, or B types would seem the obvious choices anyhow.


Josh English wrote:
> 
> Attached is a QT Movie that should work now. (I had to save them
> flattened instead of normal, which I didn't have to do before.)
> 
> Once again here is the code:
> // clock goes from 0 to 1
> #declare anim_clock = clock;
> 
> #declare x_scale = 0.5;
> #declare y_scale = 1;
> 
> #declare rotation = anim_clock * 180;
> #declare roff = 90;
> 
> #declare centerX = cos(radians(rotation-roff))*x_scale;
> #declare centerY = sin(radians(rotation-roff))*y_scale;
> #declare p = <centerX,centerY,0>;
> 
> #declare circumference = 2*pi*sqrt(( pow(x_scale,2) + pow(y_scale,2) ) /
> 2 );
> #declare half = circumference / 2;
> #declare quarter = circumference / 4;
> 
> #declare f1 = sqrt( abs ( pow(x_scale,2) - pow(y_scale,2) ) );
> #declare f2 = -f1;
> 
> #declare foci1 = <0,f1,0>-p;
> #declare foci2 = <0,f2,0>-p;
> 
> #declare a1 = degrees ( atan2 ( foci1.x,foci1.y));
> #declare a2 = degrees ( atan2 ( foci2.x,foci2.y));
> #declare a3 = ( a1 + a2 )/2;
> 
> // translate across x axis
> #declare translation = circumference *rotation/360;
> 
> plane { y, 0 pigment { checker scale quarter } }
> 
> sphere { <0,0,0> 1
>          pigment { radial frequency 8 rotate 90*x}
>          scale <x_scale,y_scale,0.125>
>          translate -p
>          rotate a3*z
>          translate translation*x
>          }
> 
> camera { location  <translation + 2, y_scale, -3.5>
>          angle 65
>          right     4/3*x
>          look_at   <translation, y_scale,  0.0>
>          //orthographic
>         }
> 
> Josh
> 
>   ------------------------------------------------------------------------
>                       Name: sidecircle2.mov
>    sidecircle2.mov    Type: QuickTime for Windows (video/quicktime)
>                   Encoding: base64

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/homepage.htm
 mailto:inv### [at] aolcom?Subject=PoV-News

Post a reply to this message