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#include "copyright.h" |
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#include "ray.h" |
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– |
|
11 |
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#include "func.h" |
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+ |
#include "rtotypes.h" |
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|
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/* |
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* A procedural texture perturbs the surface normal |
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*/ |
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|
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< |
t_func(m, r) /* compute texture for ray */ |
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< |
register OBJREC *m; |
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< |
register RAY *r; |
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> |
extern int |
32 |
> |
t_func( /* compute texture for ray */ |
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> |
register OBJREC *m, |
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> |
register RAY *r |
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> |
) |
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{ |
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FVECT disp; |
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double d; |
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errno = 0; |
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for (i = 0; i < 3; i++) { |
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disp[i] = evalue(mf->ep[i]); |
49 |
< |
if (errno) { |
49 |
> |
if (errno == EDOM || errno == ERANGE) { |
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objerror(m, WARNING, "compute error"); |
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return(0); |
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} |