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greg |
2.11 |
/* RCSid: $Id: mkillum.h,v 2.10 2007/09/18 19:51:07 greg Exp $ */
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greg |
1.1 |
/*
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* Common definitions for mkillum
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*/
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schorsch |
2.3 |
#ifndef _RAD_MKILLUM_H_
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#define _RAD_MKILLUM_H_
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greg |
1.2 |
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greg |
2.8 |
#include "ray.h"
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#include "otypes.h"
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schorsch |
2.4 |
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#ifdef __cplusplus
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extern "C" {
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#endif
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greg |
1.1 |
/* illum flags */
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greg |
1.3 |
#define IL_LIGHT 0x1 /* light rather than illum */
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#define IL_COLDST 0x2 /* use color distribution */
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#define IL_COLAVG 0x4 /* use average color */
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#define IL_DATCLB 0x8 /* OK to clobber data file */
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greg |
1.1 |
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greg |
2.10 |
/* up directions */
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typedef enum {
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UDzneg=-3,
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UDyneg=-2,
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UDxneg=-1,
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UDunknown=0,
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UDxpos=1,
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UDypos=2,
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UDzpos=3
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} UpDir;
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struct BSDF_data {
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double om_scale; /* maximum solid angle (sr/256) */
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int ninc; /* number of incoming directions */
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int32 *inc_dir; /* incoming direction codes */
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BYTE *inc_rad; /* incoming radians to neighbor */
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int nout; /* number of outgoing directions */
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int32 *out_dir; /* outgoing direction codes */
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BYTE *out_rad; /* outgoing radians to neighbor */
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float *bsdf; /* scattering distribution data */
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}; /* bidirectional scattering distrib. func. */
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greg |
1.1 |
struct illum_args {
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int flags; /* flags from list above */
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greg |
2.10 |
UpDir udir; /* up direction */
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greg |
2.11 |
double thick; /* object thickness */
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greg |
1.1 |
char matname[MAXSTR]; /* illum material name */
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char datafile[MAXSTR]; /* distribution data file name */
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int dfnum; /* data file number */
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greg |
1.2 |
char altmat[MAXSTR]; /* alternate material name */
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greg |
1.3 |
int sampdens; /* point sample density */
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greg |
1.1 |
int nsamps; /* # of samples in each direction */
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greg |
2.10 |
struct BSDF_data
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*sd; /* scattering data (if set) */
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greg |
1.5 |
float minbrt; /* minimum average brightness */
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greg |
2.9 |
COLOR col; /* computed average color */
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greg |
1.1 |
}; /* illum options */
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greg |
2.10 |
#define getBSDF_incvec(v,b,i) decodedir(v, (b)->inc_dir[i])
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#define getBSDF_outvec(v,b,o) decodedir(v, (b)->out_dir[o])
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#define getBSDF_incrad(b,i) ((b)->om_scale*((b)->inc_rad[i] + .5));
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#define getBSDF_outrad(b,o) ((b)->om_scale*((b)->out_rad[o] + .5));
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#define BSDF_data(b,i,o) (b)->bsdf[(o)*(b)->ninc + (i)]
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extern struct BSDF_data *load_BSDF(char *fname);
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extern void free_BSDF(struct BSDF_data *b);
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extern void r_BSDF_incvec(FVECT v, struct BSDF_data *b, int i,
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double rv, MAT4 xm);
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extern void r_BSDF_outvec(FVECT v, struct BSDF_data *b, int o,
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double rv, MAT4 xm);
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greg |
2.11 |
extern int getBSDF_xfm(MAT4 xm, FVECT nrm, UpDir ud);
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extern void redistribute(struct BSDF_data *b, int nalt, int nazi,
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FVECT u, FVECT v, FVECT w, MAT4 xm);
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greg |
2.10 |
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extern void printobj(char *mod, OBJREC *obj);
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extern int average(struct illum_args *il, COLORV *da, int n);
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greg |
2.9 |
extern void flatout(struct illum_args *il, COLORV *da, int n, int m,
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FVECT u, FVECT v, FVECT w);
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greg |
2.10 |
extern void illumout(struct illum_args *il, OBJREC *ob);
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greg |
2.9 |
extern void roundout(struct illum_args *il, COLORV *da, int n, int m);
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schorsch |
2.3 |
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greg |
2.11 |
extern void newdist(int siz);
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extern int process_ray(RAY *r, int rv);
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extern void raysamp(int ndx, FVECT org, FVECT dir);
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extern void rayclean(void);
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greg |
2.8 |
extern int my_default(OBJREC *, struct illum_args *, char *);
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extern int my_face(OBJREC *, struct illum_args *, char *);
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extern int my_sphere(OBJREC *, struct illum_args *, char *);
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extern int my_ring(OBJREC *, struct illum_args *, char *);
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greg |
2.7 |
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greg |
2.11 |
extern COLORV * distarr; /* distribution array */
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extern int distsiz;
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greg |
2.8 |
extern char *progname;
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greg |
2.7 |
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#ifdef __cplusplus
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}
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#endif
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greg |
2.6 |
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schorsch |
2.3 |
#endif /* _RAD_MKILLUM_H_ */
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