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root/Development/ray/src/util/findglare.c
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Comparing ray/src/util/findglare.c (file contents):
Revision 1.6 by greg, Tue Mar 19 11:19:23 1991 UTC vs.
Revision 1.7 by greg, Tue Mar 19 17:06:21 1991 UTC

# Line 295 | Line 295 | int    x, y;
295   }
296  
297  
298 – spinvector(vres, vorig, vnorm, theta)   /* rotate vector around normal */
299 – FVECT  vres, vorig, vnorm;
300 – double  theta;
301 – {
302 –        extern double  sin(), cos();
303 –        double  sint, cost, dotp;
304 –        FVECT  vperp;
305 –        register int  i;
306 –        
307 –        sint = sin(theta);
308 –        cost = cos(theta);
309 –        dotp = DOT(vorig, vnorm);
310 –        fcross(vperp, vnorm, vorig);
311 –        for (i = 0; i < 3; i++)
312 –                vres[i] = vnorm[i]*dotp*(1.-cost) +
313 –                                vorig[i]*cost + vperp[i]*sint;
314 – }
315 –
316 –
298   memerr(s)                       /* malloc failure */
299   char    *s;
300   {

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