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/* |
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* ray.h - header file for routines using rays. |
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*/ |
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#ifndef _RAD_RAY_H_ |
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#define _RAD_RAY_H_ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#include "copyright.h" |
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#include "standard.h" |
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OBJECT *clipset; /* set of objects currently clipped */ |
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OBJECT *newcset; /* next clipset, used for transmission */ |
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void (*revf)(); /* evaluation function for this ray */ |
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void (*hitf)(); /* custom hit test for this traversal */ |
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OBJECT robj; /* intersected object number */ |
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OBJREC *ro; /* intersected object (one with material) */ |
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double rot; /* distance to object */ |
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FVECT ron; /* intersection surface normal */ |
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double rod; /* -DOT(rdir, ron) */ |
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FULLXF *rox; /* object transformation */ |
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FLOAT uv[2]; /* local coordinates */ |
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FVECT pert; /* surface normal perturbation */ |
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COLOR pcol; /* pattern color */ |
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COLOR rcol; /* returned ray value */ |
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#define rpambmod(p,i) ( (i)>=AMBLLEN||(p)->amblndx[i]<0 ? \ |
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(char *)NULL : (p)->amblval+(p)->amblndx[i] ) |
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#ifdef NOPROTO |
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extern void headclean(); |
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extern void openheader(); |
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extern void dupheader(); |
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extern void pfdetach(); |
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extern void pfclean(); |
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extern void pflock(); |
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extern void pfhold(); |
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extern void io_process(); |
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extern int free_objs(); |
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extern void free_objmem(); |
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extern int load_os(); |
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extern void preload_objs(); |
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extern void ray_init(); |
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extern void ray_trace(); |
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extern void ray_done(); |
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extern void ray_save(); |
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extern void ray_restore(); |
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extern void ray_defaults(); |
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extern void ray_pinit(); |
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extern void ray_psend(); |
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extern int ray_pqueue(); |
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extern int ray_presult(); |
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extern void ray_pdone(); |
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extern void ray_popen(); |
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extern void ray_pclose(); |
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extern int rayorigin(); |
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extern void rayclear(); |
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extern void raytrace(); |
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extern void raycont(); |
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extern void raytrans(); |
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extern int rayshade(); |
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extern void rayparticipate(); |
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extern int raymixture(); |
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extern double raydist(); |
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extern double raynormal(); |
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extern void newrayxf(); |
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extern void flipsurface(); |
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extern int localhit(); |
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extern int getrenderopt(); |
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extern void print_rdefaults(); |
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extern void drawsources(); |
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extern void rtrace(); |
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extern void rview(); |
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extern void rpict(); |
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#else |
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/* defined in duphead.c */ |
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extern void headclean(void); |
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extern void openheader(void); |
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extern int rayorigin(RAY *r, RAY *ro, int rt, double rw); |
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extern void rayclear(RAY *r); |
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extern void raytrace(RAY *r); |
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extern void rayhit(OBJECT *oset, RAY *r); |
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extern void raycont(RAY *r); |
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extern void raytrans(RAY *r); |
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extern int rayshade(RAY *r, int mod); |
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extern void rayparticipate(RAY *r); |
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extern void raytexture(RAY *r, OBJECT mod); |
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extern int raymixture(RAY *r, OBJECT fore, OBJECT back, double coef); |
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extern double raydist(RAY *r, int flags); |
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extern double raynormal(FVECT norm, RAY *r); |
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extern void rview(void); |
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extern void rpict(int seq, char *pout, char *zout, char *prvr); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* _RAD_RAY_H_ */ |
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