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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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* |
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* Include after ray.h |
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*/ |
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#include "copyright.h" |
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#include "calcomp.h" |
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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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} 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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#ifdef NOPROTO |
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extern MFUNC *getfunc(); |
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extern void freefunc(); |
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extern int setfunc(); |
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extern void loadfunc(); |
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#else |
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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 void loadfunc(char *fname); |
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#endif |
