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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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|
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#include "copyright.h" |
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#include "standard.h" |
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#include "octree.h" |
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#include "object.h" |
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#include "color.h" |
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#include "pmapparm.h" |
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|
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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|
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#ifndef RNUMBER |
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#define RNUMBER unsigned long /* ray counter (>= sizeof pointer) */ |
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#endif |
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|
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#define MAXDIM 32 /* maximum number of dimensions */ |
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|
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/* ray type flags */ |
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/* reflected ray types */ |
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#define RAYREFL (SHADOW|REFLECTED|AMBIENT|SPECULAR) |
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|
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/* Arrange so double's come first for optimal alignment */ |
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/* Pointers and long's come second for 64-bit mode */ |
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/* Int's next (unknown length), then floats, followed by short's & char's */ |
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typedef struct ray { |
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unsigned long rno; /* unique ray number */ |
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int rlvl; /* number of reflections for this ray */ |
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float rweight; /* cumulative weight of this ray */ |
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short rtype; /* ray type */ |
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short crtype; /* cumulative ray type */ |
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struct ray *parent; /* ray this originated from */ |
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FVECT rorg; /* origin of ray */ |
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FVECT rdir; /* normalized direction of ray */ |
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double rmax; /* maximum distance (aft clipping plane) */ |
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int rsrc; /* source we're aiming for */ |
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RREAL rmax; /* maximum distance (aft clipping plane) */ |
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RREAL rot; /* distance to object */ |
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FVECT rop; /* intersection point */ |
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FVECT ron; /* intersection surface normal */ |
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RREAL rod; /* -DOT(rdir, ron) */ |
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RREAL uv[2]; /* local coordinates */ |
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FVECT pert; /* surface normal perturbation */ |
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RREAL rmt; /* returned mirrored ray length */ |
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RREAL rxt; /* returned unmirrored ray length */ |
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const struct ray *parent; /* ray this originated from */ |
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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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void (*revf)(struct ray *); /* ray evaluation function */ |
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void (*hitf)(OBJECT *, struct ray *); /* custom hit test */ |
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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 rop; /* intersection point */ |
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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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int *slights; /* list of lights to test for scattering */ |
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RNUMBER rno; /* unique ray number */ |
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OBJECT robj; /* intersected object number */ |
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int rsrc; /* source we're aiming for */ |
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float rweight; /* cumulative weight (for termination) */ |
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float gecc; /* scattering eccentricity coefficient */ |
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COLOR rcoef; /* contribution coefficient w.r.t. parent */ |
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COLOR pcol; /* pattern color */ |
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COLOR rcol; /* returned ray value */ |
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double rt; /* returned effective ray length */ |
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COLOR mcol; /* mirrored color contribution */ |
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COLOR rcol; /* returned radiance value */ |
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COLOR cext; /* medium extinction coefficient */ |
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COLOR albedo; /* medium scattering albedo */ |
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float gecc; /* scattering eccentricity coefficient */ |
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int *slights; /* list of lights to test for scattering */ |
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short rflips; /* surface orientation has been reversed */ |
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short rlvl; /* number of reflections for this ray */ |
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short rtype; /* ray type */ |
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short crtype; /* cumulative ray type */ |
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} RAY; |
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|
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#define rayvalue(r) (*(r)->revf)(r) |
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|
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extern char VersionID[]; /* Radiance version ID string */ |
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#define raydistance(r) (bright((r)->mcol) > 0.5*bright((r)->rcol) ? \ |
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(r)->rmt : (r)->rxt) |
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|
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#define rayreorient(r) if ((r)->rflips & 1) flipsurface(r); else |
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|
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extern char VersionID[]; /* Radiance version ID string */ |
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extern char RFeatureList[]; /* newline-separated feature list */ |
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|
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extern CUBE thescene; /* our scene */ |
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extern OBJECT nsceneobjs; /* number of objects in our scene */ |
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|
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extern unsigned long raynum; /* next ray ID */ |
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extern unsigned long nrays; /* total rays traced so far */ |
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extern RNUMBER raynum; /* next ray ID */ |
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extern RNUMBER nrays; /* total rays traced so far */ |
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|
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extern OBJREC Lamb; /* a Lambertian surface */ |
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extern OBJREC Aftplane; /* aft clipping object */ |
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extern int ndims; /* number of dimensions so far */ |
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extern int samplendx; /* index for this sample */ |
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|
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extern int ray_savesiz; /* size of parameter save buffer */ |
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|
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extern int do_irrad; /* compute irradiance? */ |
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|
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extern int rand_samp; /* pure Monte Carlo sampling? */ |
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|
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extern double dstrsrc; /* square source distribution */ |
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extern double shadthresh; /* shadow threshold */ |
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extern double shadcert; /* shadow testing certainty */ |
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extern int ray_pnprocs; /* number of child processes */ |
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extern int ray_pnidle; /* number of idle processes */ |
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|
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#define AMBLLEN 128 /* max. ambient list length */ |
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#define AMBWORD 8 /* average word length */ |
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#ifndef AMBLLEN |
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#define AMBLLEN 512 /* max. ambient list length */ |
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#endif |
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> |
#define AMBWORD 12 /* average word length */ |
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|
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typedef struct { /* rendering parameter holder */ |
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int do_irrad; |
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int rand_samp; |
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double dstrsrc; |
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double shadthresh; |
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double shadcert; |
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int ambincl; |
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short amblndx[AMBLLEN+1]; |
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char amblval[AMBLLEN*AMBWORD]; |
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|
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/* PMAP: photon mapping parameters */ |
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PhotonMapParams pmapParams [NUM_PMAP_TYPES]; |
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} RAYPARAMS; |
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|
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#define rpambmod(p,i) ( (i)>=AMBLLEN||(p)->amblndx[i]<0 ? \ |
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extern void headclean(void); |
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extern void openheader(void); |
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extern void dupheader(void); |
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/* defined in persist.c */ |
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extern void persistfile(char *pfn); |
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extern void pfdetach(void); |
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extern void pfclean(void); |
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extern void pflock(int lf); |
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extern void ray_defaults(RAYPARAMS *rp); |
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/* defined in raypcalls.c */ |
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extern void ray_pinit(char *otnm, int nproc); |
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extern void ray_psend(RAY *r); |
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> |
extern int ray_psend(RAY *r); |
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extern int ray_pqueue(RAY *r); |
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extern int ray_presult(RAY *r, int poll); |
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extern void ray_pdone(int freall); |
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extern void ray_popen(int nadd); |
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extern void ray_pclose(int nsub); |
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/* defined in ray_fifo.c */ |
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extern int (*ray_fifo_out)(RAY *r); |
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extern int ray_fifo_in(RAY *r); |
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extern int ray_fifo_flush(void); |
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/* defined in raytrace.c */ |
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< |
extern int rayorigin(RAY *r, RAY *ro, int rt, double rw); |
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> |
extern int rayorigin(RAY *r, int rt, const RAY *ro, const COLOR rc); |
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extern void rayclear(RAY *r); |
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extern void raytrace(RAY *r); |
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extern int rayreject(OBJREC *o, RAY *r, double t); |
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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 raytirrad(OBJREC *m, 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 void raycontrib(RREAL rc[3], const RAY *r, int flags); |
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> |
extern double raydist(const RAY *r, int flags); |
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extern double raynormal(FVECT norm, RAY *r); |
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extern void newrayxf(RAY *r); |
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extern void flipsurface(RAY *r); |
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extern int localhit(RAY *r, CUBE *scene); |
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/* defined in renderopts.c */ |
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+ |
extern int feature_status(int ac, char *av[]); |
| 240 |
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extern int getrenderopt(int ac, char *av[]); |
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|
extern void print_rdefaults(void); |
| 242 |
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/* defined in srcdraw.c */ |
| 243 |
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extern void drawsources(COLOR *pic[], float *zbf[], |
| 244 |
|
int x0, int xsiz, int y0, int ysiz); |
| 245 |
+ |
extern void init_drawsources(int rad); |
| 246 |
+ |
/* defined in rt/initotypes.c */ |
| 247 |
+ |
extern void initotypes(void); |
| 248 |
|
/* module main procedures */ |
| 249 |
< |
extern void rtrace(char *fname); |
| 249 |
> |
extern void rtrace(char *fname, int nproc); |
| 250 |
> |
extern char *formstr(int f); |
| 251 |
|
extern void rview(void); |
| 252 |
|
extern void rpict(int seq, char *pout, char *zout, char *prvr); |
| 253 |
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|
| 254 |
+ |
#ifdef __FAST_MATH__ |
| 255 |
+ |
#define checknorm(vn) (void)normalize(vn) |
| 256 |
+ |
#else |
| 257 |
+ |
#define checknorm(vn) |
| 258 |
+ |
#endif |
| 259 |
|
|
| 260 |
|
#ifdef __cplusplus |
| 261 |
|
} |
