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/* Copyright (c) 1993 Regents of the University of California */ |
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/* Copyright (c) 1995 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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int directvis = 1; /* sources visible? */ |
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double srcsizerat = .25; /* maximum ratio source size/dist. */ |
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|
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COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
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double salbedo = 0.; /* global scattering albedo */ |
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double seccg = 0.; /* global scattering eccentricity */ |
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double ssampdist = 0.; /* scatter sampling distance */ |
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|
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double specthresh = .15; /* specular sampling threshold */ |
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double specjitter = 1.; /* specular sampling jitter */ |
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|
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int backvis = 1; /* back face visibility */ |
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|
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int maxdepth = 6; /* maximum recursion depth */ |
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double minweight = 5e-3; /* minimum ray weight */ |
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|
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fprtresolu(hres, vres, stdout); |
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/* recover file and compute first */ |
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i = salvage(oldfile); |
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if (i >= vres) |
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goto alldone; |
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if (zfd != -1 && i > 0 && |
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lseek(zfd, (long)i*hres*sizeof(float), 0) == -1) |
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error(SYSTEM, "z-file seek error in render"); |
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} |
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/* clean up */ |
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signal(SIGCONT, SIG_IGN); |
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if (zfd != -1) { |
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if (write(zfd, (char *)zbar[0], hres*sizeof(float)) |
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if (zfd != -1 && write(zfd, (char *)zbar[0], hres*sizeof(float)) |
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< hres*sizeof(float)) |
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< |
goto writerr; |
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> |
goto writerr; |
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fwritescan(scanbar[0], hres, stdout); |
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if (fflush(stdout) == EOF) |
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goto writerr; |
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alldone: |
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if (zfd != -1) { |
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if (close(zfd) == -1) |
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goto writerr; |
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for (i = 0; i <= psample; i++) |
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free((char *)zbar[i]); |
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} |
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fwritescan(scanbar[0], hres, stdout); |
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if (fflush(stdout) == EOF) |
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goto writerr; |
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for (i = 0; i <= psample; i++) |
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free((char *)scanbar[i]); |
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if (sampdens != NULL) |
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{ |
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static RAY thisray; |
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|
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if (viewray(thisray.rorg, thisray.rdir, &ourview, |
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(x+pixjitter())/hres, (y+pixjitter())/vres) < 0) { |
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if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, &ourview, |
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(x+pixjitter())/hres, (y+pixjitter())/vres)) < -FTINY) { |
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setcolor(col, 0.0, 0.0, 0.0); |
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return(0.0); |
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} |
