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#ifndef lint |
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static const char RCSid[] = "$Id: lookamb.c,v 2.18 2023/11/15 18:02:52 greg Exp $"; |
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#endif |
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/* |
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* lookamb.c - program to examine ambient components. |
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*/ |
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|
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#include "copyright.h" |
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|
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#include "platform.h" |
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#include "ray.h" |
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#include "ambient.h" |
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|
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|
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int dataonly = 0; |
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int header = 1; |
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int reverse = 0; |
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|
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AMBVAL av; |
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|
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|
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static void |
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lookamb( /* load & convert ambient values from a file */ |
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FILE *fp |
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) |
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{ |
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FVECT norm, uvec; |
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COLOR avcol; |
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|
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while (readambval(&av, fp)) { |
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decodedir(norm, av.ndir); |
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decodedir(uvec, av.udir); |
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scolor2rgb(avcol, av.val, AMB_CNDX[3], AMB_WLPART); |
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if (dataonly) { |
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printf("%f\t%f\t%f\t", av.pos[0], av.pos[1], av.pos[2]); |
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printf("%f\t%f\t%f\t", norm[0], norm[1], norm[2]); |
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printf("%f\t%f\t%f\t", uvec[0], uvec[1], uvec[2]); |
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printf("%d\t%f\t%f\t%f\t", av.lvl, av.weight, |
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av.rad[0], av.rad[1]); |
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printf("%e\t%e\t%e\t", colval(avcol,RED), |
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colval(avcol,GRN), |
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colval(avcol,BLU)); |
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printf("%f\t%f\t", av.gpos[0], av.gpos[1]); |
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printf("%f\t%f\t", av.gdir[0], av.gdir[1]); |
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printf("%u\n", av.corral); |
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} else { |
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printf("Position:\t%f\t%f\t%f\n", av.pos[0], |
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av.pos[1], av.pos[2]); |
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printf("Normal:\t\t%f\t%f\t%f\n", |
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norm[0], norm[1], norm[2]); |
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printf("Uvector:\t%f\t%f\t%f\n", |
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uvec[0], uvec[1], uvec[2]); |
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printf("Lvl,Wt,UVrad:\t%d\t\t%f\t%f\t%f\n", av.lvl, |
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av.weight, av.rad[0], av.rad[1]); |
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printf("Value:\t\t%e\t%e\t%e\n", colval(avcol,RED), |
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colval(avcol,GRN), colval(avcol,BLU)); |
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printf("Pos.Grad:\t%f\t%f\n", av.gpos[0], av.gpos[1]); |
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printf("Dir.Grad:\t%f\t%f\n", av.gdir[0], av.gdir[1]); |
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printf("Corral:\t\t%8X\n\n", av.corral); |
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} |
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if (ferror(stdout)) |
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exit(1); |
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} |
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} |
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|
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|
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static void |
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writamb( /* write binary ambient values to stdout */ |
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FILE *fp |
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) |
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{ |
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FVECT norm; |
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COLOR avcol; |
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|
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for ( ; ; ) { |
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if (!dataonly) |
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fscanf(fp, "%*s"); |
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if (fscanf(fp, "%f %f %f", |
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&av.pos[0], &av.pos[1], &av.pos[2]) != 3) |
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return; |
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if (!dataonly) |
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fscanf(fp, "%*s"); |
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if (fscanf(fp, FVFORMAT, &norm[0], &norm[1], &norm[2]) != 3 || |
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normalize(norm) == 0) |
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return; |
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av.ndir = encodedir(norm); |
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if (!dataonly) |
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fscanf(fp, "%*s"); |
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if (fscanf(fp, FVFORMAT, &norm[0], &norm[1], &norm[2]) != 3 || |
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normalize(norm) == 0) |
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return; |
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av.udir = encodedir(norm); |
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if (!dataonly) |
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fscanf(fp, "%*s"); |
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if (fscanf(fp, "%hd %f %f %f", &av.lvl, &av.weight, |
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&av.rad[0], &av.rad[1]) != 4) |
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return; |
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if (!dataonly) |
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fscanf(fp, "%*s"); |
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if (fscanf(fp, "%f %f %f", |
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&avcol[RED], &avcol[GRN], &avcol[BLU]) != 3) |
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return; |
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setscolor(av.val, avcol[RED], avcol[GRN], avcol[BLU]); |
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if (!dataonly) |
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fscanf(fp, "%*s"); |
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if (fscanf(fp, "%f %f", &av.gpos[0], &av.gpos[1]) != 2) |
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return; |
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if (!dataonly) |
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fscanf(fp, "%*s"); |
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if (fscanf(fp, "%f %f", &av.gdir[0], &av.gdir[1]) != 2) |
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return; |
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if (dataonly) { |
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if (fscanf(fp, "%u", &av.corral) != 1) |
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return; |
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} else if (fscanf(fp, "%*s %X", &av.corral) != 1) |
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return; |
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av.next = NULL; |
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if (writambval(&av, stdout) < 0) |
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exit(1); |
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} |
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} |
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|
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|
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int |
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main( /* load ambient values from a file */ |
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int argc, |
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char *argv[] |
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) |
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{ |
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FILE *fp; |
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int i; |
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|
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for (i = 1; i < argc; i++) |
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if (argv[i][0] == '-') |
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switch (argv[i][1]) { |
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case 'd': |
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dataonly = 1; |
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break; |
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case 'r': |
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reverse = 1; |
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break; |
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case 'h': |
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header = 0; |
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break; |
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default: |
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fprintf(stderr, "%s: unknown option '%s'\n", |
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argv[0], argv[i]); |
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return(1); |
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} |
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else |
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break; |
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|
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if (i >= argc) |
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fp = stdin; |
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else if ((fp = fopen(argv[i], "r")) == NULL) { |
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fprintf(stderr, "%s: file not found\n", argv[i]); |
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return(1); |
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} |
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if (reverse) { |
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SET_FILE_BINARY(stdout); |
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if (header) { |
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if (checkheader(fp, "ascii", stdout) < 0) |
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goto formaterr; |
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} else { |
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newheader("RADIANCE", stdout); |
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printargs(argc, argv, stdout); |
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} |
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fputncomp(3, stdout); |
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fputformat(AMBFMT, stdout); |
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fputc('\n', stdout); |
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putambmagic(stdout); |
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writamb(fp); |
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} else { |
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SET_FILE_BINARY(fp); |
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if (getheader(fp, amb_headline, header ? stdout : (FILE *)NULL) < 0) |
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goto formaterr; |
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if (!hasambmagic(fp)) |
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goto formaterr; |
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if (header) { |
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fputformat("ascii", stdout); |
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fputc('\n', stdout); |
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} |
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lookamb(fp); |
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} |
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fclose(fp); |
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return(0); |
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formaterr: |
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fprintf(stderr, "%s: format error on input\n", argv[0]); |
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exit(1); |
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} |
