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/* Copyright (c) 1991 Regents of the University of California */ |
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/* SCCSid "$SunId$ LBL" */ |
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/* RCSid $Id$ */ |
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/* |
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* Header file for modifiers using function files. |
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* Include after standard.h. |
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* |
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* Include after ray.h |
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*/ |
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#ifndef _RAD_FUNC_H_ |
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#define _RAD_FUNC_H_ |
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#include "calcomp.h" |
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#include "calcomp.h" |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#define MAXEXPR 9 /* maximum expressions in modifier */ |
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typedef struct { |
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EPNODE *ep[MAXEXPR+1]; /* NULL-terminated expression list */ |
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char *ctx; /* context (from file name) */ |
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XF *f, *b; /* forward and backward transforms */ |
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XF *fxp, *bxp; /* forward and backward transforms */ |
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} MFUNC; /* material function */ |
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extern XF unitxf; /* identity transform */ |
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extern XF funcxf; /* current transform */ |
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extern MFUNC *getfunc(); /* get MFUNC structure for modifier */ |
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extern void initfunc(void); |
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extern MFUNC *getfunc(OBJREC *m, int ff, unsigned int ef, int dofwd); |
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extern void freefunc(OBJREC *m); |
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extern int setfunc(OBJREC *m, RAY *r); |
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extern int worldfunc(char *ctx, RAY *r); |
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extern void loadfunc(char *fname); |
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/* defined in noise3.c */ |
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extern void setnoisefuncs(void); |
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/* defined in fprism.c */ |
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extern void setprismfuncs(void); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* _RAD_FUNC_H_ */ |
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