On 03/09/2016 08:17 AM, Clodo wrote:
>
> Thanks clipka.
>
>
> Quick Benchmark: scenes/camera/spherical.pov, 4096x2048 AA 0.3, no-stereo
> (tested 3 times each).
> All three method generate the same identical image.
> ----------------
> Default camera{spherical}: 22 seconds
> ----------------
> With my C implementation of ODS, direct in tracepixel.cpp (
> http://pastebin.com/fJ0Z978Q ), mode 0 (no-stereo): 19 seconds
> ----------------
> With the below user-defined camera: 22 seconds
>
> #declare ipd = 0.065;
> #declare eye = 0; // 0: No-Stereo, 1: Left, 2: Right
> camera {
>        user_defined
>        location {
>          function { cos((x+0.5) * 2 * pi - pi)*ipd/2*eye }
>          function { 0 }
>          function { sin((x+0.5) * 2 * pi - pi)*ipd/2*eye }
>        }
>        direction {
>          function { sin((x+0.5) * 2 * pi - pi) * cos(pi / 2 - (1-(y+0.5))*pi) }
>          function { sin(pi / 2 - (1-(y+0.5))*pi) }
>          function { cos((x+0.5) * 2 * pi - pi) * cos(pi / 2 - (1-(y+0.5))*pi) }
>        }
>      }
> ---------------
>
> clipka, my C implementation can render directly in one image both side-by-side
> or top-bottom.
> I was unable to do the same thing with user_defined camera.
> Besides the need of declaration/computation of common variables theta/phi in
> each vector3 components (i can't find a method to define it outside),
> i don't find the right syntax for inject some #if.
> For example
> function { #if(x<0.5) x #else 1/x #end }
> don't work...
> I'm missing something about syntax, or isn't possible? Thanks for any feedback.
>
>
>
Functional camera implementation - again well done.

There is a select() function which I think will work for you.

Bill P.

Post a reply to this message