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/* Copyright (c) 1992 Regents of the University of California */ |
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#ifndef lint |
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< |
static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* t_data.c - routine for stored textures |
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* |
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* 6/4/86 |
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*/ |
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< |
#include "ray.h" |
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> |
#include "copyright.h" |
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+ |
#include "ray.h" |
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#include "data.h" |
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#include "func.h" |
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#include "rtotypes.h" |
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/* |
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* A stored texture is specified as follows: |
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*/ |
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t_data(m, r) /* interpolate texture data */ |
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register OBJREC *m; |
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RAY *r; |
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extern int |
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t_data( /* interpolate texture data */ |
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> |
register OBJREC *m, |
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> |
RAY *r |
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) |
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{ |
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int nv; |
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FVECT disp; |
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errno = 0; |
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for (i = 0; i < nv; i++) |
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pt[i] = evalue(mf->ep[i]); |
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if (errno) |
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if (errno == EDOM || errno == ERANGE) |
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goto computerr; |
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dval[0] = datavalue(dp, pt); |
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for (i = 1; i < 3; i++) { |
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errno = 0; |
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for (i = 0; i < 3; i++) |
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disp[i] = funvalue(m->oargs.sarg[i], 3, dval); |
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< |
if (errno) |
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> |
if (errno == EDOM || errno == ERANGE) |
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goto computerr; |
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if (mf->f != &unitxf) |
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multv3(disp, disp, mf->f->xfm); |
