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#ifndef _RAD_FUNC_H_ |
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#define _RAD_FUNC_H_ |
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#include "ray.h" |
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#include "object.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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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(OBJREC *m, int ff, unsigned int ef, int dofwd); |
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extern void initfunc(void); |
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extern void set_eparams(const char *prms); |
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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(const 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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extern void setnoisefuncs(void); |
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/* defined in fprism.c */ |
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extern void setprismfuncs(void); |
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extern void setprismfuncs(void); |
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#ifdef __cplusplus |
