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/* Copyright (c) 1992 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 = 0.; /* maximum ratio source size/dist. */ |
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|
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COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
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COLOR salbedo = BLKCOLOR; /* 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 = .3; /* 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 = 4; /* maximum recursion depth */ |
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double minweight = 1e-2; /* minimum ray weight */ |
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COLOR ambval = BLKCOLOR; /* ambient value */ |
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int ambvwt = 0; /* initial weight for ambient value */ |
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double ambacc = 0.2; /* ambient accuracy */ |
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int ambres = 8; /* ambient resolution */ |
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int ambdiv = 32; /* ambient divisions */ |
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getexposure(args); |
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break; |
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case 's': /* set a parameter */ |
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if (badcom("set")) |
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if (badcom("set")) { |
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#ifdef SIGTSTP |
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if (!badcom("stop")) |
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goto dostop; |
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#endif |
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goto commerr; |
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} |
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setparam(args); |
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break; |
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case 'n': /* new picture */ |
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break; |
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case 'r': /* rotate/repaint */ |
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if (badcom("rotate")) { |
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if (badcom("repaint")) |
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goto commerr; |
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if (badcom("repaint")) { |
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if (badcom("redraw")) |
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goto commerr; |
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redraw(); |
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break; |
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} |
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getrepaint(args); |
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break; |
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} |
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getrotate(args); |
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break; |
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case 'p': /* pivot view */ |
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if (badcom("pivot")) |
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goto commerr; |
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if (badcom("pivot")) { |
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if (badcom("pause")) |
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goto commerr; |
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goto again; |
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} |
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getpivot(args); |
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break; |
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case CTRL('R'): /* redraw */ |
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case CTRL('C'): /* interrupt */ |
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goto again; |
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#ifdef SIGTSTP |
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case CTRL('Z'): /* stop */ |
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case CTRL('Z'):; /* stop */ |
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dostop: |
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devclose(); |
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kill(0, SIGTSTP); |
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/* pc stops here */ |