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#include <sys/types.h> |
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#ifndef NON_POSIX |
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#ifdef BSD |
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#include <sys/time.h> |
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#include <sys/resource.h> |
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#include "platform.h" |
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#ifdef NON_POSIX |
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#ifdef MINGW |
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#include <sys/time.h> |
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#endif |
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#else |
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#include <sys/times.h> |
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#include <unistd.h> |
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#ifdef BSD |
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#include <sys/time.h> |
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#include <sys/resource.h> |
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#else |
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#include <sys/times.h> |
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#include <unistd.h> |
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#endif |
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#endif |
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#endif |
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#include <time.h> |
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#include <signal.h> |
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#include "platform.h" |
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#include "ray.h" |
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#include "paths.h" |
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#include "ambient.h" |
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int ndims = 0; /* number of sampling dimensions */ |
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int samplendx; /* sample index number */ |
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//extern void ambnotify(); |
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void (*addobjnotify[])() = {ambnotify, NULL}; |
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VIEW ourview = STDVIEW; /* view parameters */ |
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int do_irrad = 0; /* compute irradiance? */ |
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int rand_samp = 0; /* pure Monte Carlo sampling? */ |
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double dstrsrc = 0.0; /* square source distribution */ |
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double shadthresh = .05; /* shadow threshold */ |
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double shadcert = .5; /* shadow certainty */ |
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int backvis = 1; /* back face visibility */ |
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int maxdepth = 7; /* maximum recursion depth */ |
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double minweight = 4e-3; /* minimum ray weight */ |
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double minweight = 1e-3; /* minimum ray weight */ |
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char *ambfile = NULL; /* ambient file name */ |
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COLOR ambval = BLKCOLOR; /* ambient value */ |
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static VIEW lastview; /* the previous view input */ |
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//extern char *mktemp(); /* XXX should be in stdlib.h or unistd.h */ |
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//double pixvalue(); |
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static void report(int); |
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static int nextview(FILE *fp); |
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static void render(char *zfile, char *oldfile); |
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return(0.0); |
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} |
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vdist = ourview.vdist; |
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samplendx = pixnumber(x,y,hres,vres); /* set pixel index */ |
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/* set pixel index */ |
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samplendx = pixnumber(x,y,hres,vres); |
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/* optional motion blur */ |
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if (lastview.type && mblur > FTINY && (lmax = viewray(lorg, ldir, |
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&lastview, hpos, vpos)) >= -FTINY) { |
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} |
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/* optional depth-of-field */ |
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if (dblur > FTINY && vdist > FTINY) { |
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double vc, df[2]; |
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df[0] = PI/4.*dblur*(.5 - frandom())/sqrt(ourview.hn2); |
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df[1] = PI/4.*dblur*(.5 - frandom())/sqrt(ourview.vn2); |
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for (i = 3; i--; ) { |
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vc = thisray.rorg[i] + vdist*thisray.rdir[i]; |
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thisray.rorg[i] += df[0]*ourview.hvec[i] + |
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df[1]*ourview.vvec[i] ; |
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thisray.rdir[i] = vc - thisray.rorg[i]; |
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double vc, dfh, dfv; |
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/* square/circle conv. */ |
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dfh = vc = 1. - 2.*frandom(); |
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dfv = 1. - 2.*frandom(); |
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dfh *= .5*dblur*sqrt(1. - .5*dfv*dfv); |
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dfv *= .5*dblur*sqrt(1. - .5*vc*vc); |
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if (ourview.type == VT_PER || ourview.type == VT_PAR) { |
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dfh /= sqrt(ourview.hn2); |
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dfv /= sqrt(ourview.vn2); |
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for (i = 3; i--; ) { |
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vc = thisray.rorg[i] + vdist*thisray.rdir[i]; |
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thisray.rorg[i] += dfh*ourview.hvec[i] + |
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dfv*ourview.vvec[i] ; |
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thisray.rdir[i] = vc - thisray.rorg[i]; |
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} |
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} else { /* non-standard view case */ |
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double dfd = PI/4.*dblur*(.5 - frandom()); |
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if (ourview.type != VT_ANG && ourview.type != VT_PLS) { |
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if (ourview.type != VT_CYL) |
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dfh /= sqrt(ourview.hn2); |
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dfv /= sqrt(ourview.vn2); |
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} |
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for (i = 3; i--; ) { |
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vc = thisray.rorg[i] + vdist*thisray.rdir[i]; |
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thisray.rorg[i] += dfh*ourview.hvec[i] + |
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dfv*ourview.vvec[i] + |
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dfd*ourview.vdir[i] ; |
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thisray.rdir[i] = vc - thisray.rorg[i]; |
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} |
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} |
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if (normalize(thisray.rdir) == 0.0) |
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return(0.0); |
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} |
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rayorigin(&thisray, NULL, PRIMARY, 1.0); |
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rayorigin(&thisray, PRIMARY, NULL, NULL); |
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rayvalue(&thisray); /* trace ray */ |
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