Thorsten Froehlich wrote:

> typedef struct Frame_Struct FRAME;
>
> struct Frame_Struct
> {
>   CAMERA *Camera;
>   int Screen_Height, Screen_Width; /* OPTIONS */
>   int Number_Of_Light_Sources;
>   LIGHT_SOURCE *Light_Sources;
>   OBJECT *Objects;
>   DBL Atmosphere_IOR, Atmosphere_Dispersion, Antialias_Threshold;
>   COLOUR Background_Colour;
>   COLOUR Ambient_Light;
>   COLOUR Irid_Wavelengths;
>   IMEDIA *Atmosphere;
>   FOG *Fog;
>   RAINBOW *Rainbow;
>   SKYSPHERE *Skysphere;
> };
>

Hmm....this looks like a good foundation for the basic "scene" object that I
think should be the proxy class (object) for the whole scene in an
OO-version...

(think java)

public class scene{
  povCamera camera;
  povObject objects[];
  // everything is an object - light sources too, for example
  povIniOption ini_options;
  double initial_clock, final_clock, clock;
  povAtmosphere atmosphere;
  povFog fog;
  povSkysphere sky_sphere;
  public class image{
    int width, height;
    outputType output_type;
    // etc.
  }
  // etc.
}

This way, the scene object encapsulates everything regarding the scene to be
rendered, and it feels logical to write lines as these:

scene.image.width
scene.camera.look_at
scene.atmosphere
scene.sky_sphere
..
#if (scene.current_frame=scene.ini_options.initial_frame) ... #end // new one,
that...
#declare scene.objects[0].scale = foo;
#if(scene.camera.look_at=myFoo.location) ... #end

Well, hope I'm not the only one who sees the possibilities here...sorry for
being OT.

----------------------------------------------------
Mikael Carneholm, B.Sc.
Dep. of Computer Science and Business Administration


Personal homepage:
http://www.studenter.hb.se/~arch
E-mail:
sa9### [at] idautbhbse

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