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- /****************************************************************************
- * spheres.h
- *
- * This module contains all defines, typedefs, and prototypes for SPHERES.C.
- *
- * from Persistence of Vision(tm) Ray Tracer
- * Copyright 1996 Persistence of Vision Team
- *---------------------------------------------------------------------------
- * NOTICE: This source code file is provided so that users may experiment
- * with enhancements to POV-Ray and to port the software to platforms other
- * than those supported by the POV-Ray Team. There are strict rules under
- * which you are permitted to use this file. The rules are in the file
- * named POVLEGAL.DOC which should be distributed with this file. If
- * POVLEGAL.DOC is not available or for more info please contact the POV-Ray
- * Team Coordinator by leaving a message in CompuServe's Graphics Developer's
- * Forum. The latest version of POV-Ray may be found there as well.
- *
- * This program is based on the popular DKB raytracer version 2.12.
- * DKBTrace was originally written by David K. Buck.
- * DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
- *
- *****************************************************************************/
-
-
- #ifndef SPHERES_H
- #define SPHERES_H
-
-
-
- /*****************************************************************************
- * Global preprocessor defines
- ******************************************************************************/
-
- #define SPHERE_OBJECT (BASIC_OBJECT)
-
-
-
- /*****************************************************************************
- * Global typedefs
- ******************************************************************************/
-
- typedef struct Sphere_Struct SPHERE;
-
- struct Sphere_Struct
- {
- OBJECT_FIELDS
- TRANSFORM *Trans;
- VECTOR Center;
- DBL Radius;
- };
-
-
-
- /*****************************************************************************
- * Global variables
- ******************************************************************************/
-
-
-
-
- /*****************************************************************************
- * Global functions
- ******************************************************************************/
-
- SPHERE *Create_Sphere PARAMS((void));
- void Compute_Sphere_BBox PARAMS((SPHERE *Sphere));
- int Intersect_Sphere PARAMS((RAY *Ray, VECTOR Center, DBL Radius2, DBL *Depth1, DBL *Depth2));
- void *Copy_Sphere PARAMS((OBJECT *Object));
- void Transform_Sphere PARAMS((OBJECT *Object, TRANSFORM *Trans));
- void Destroy_Sphere PARAMS((OBJECT *Object));
-
- #endif
-