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/* Copyright (c) 1986 Regents of the University of California */ |
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/* Copyright (c) 1991 Regents of the University of California */ |
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/* SCCSid "$SunId$ LBL" */ |
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#define normbright(c) (int)((67L*(c)[RED]+168L*(c)[GRN]+21L*(c)[BLU])/256) |
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#endif |
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#define luminance(col) (470. * bright(col)) |
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/* luminous efficacies over visible spectrum */ |
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#define MAXEFFICACY 683. /* defined maximum at 550 nm */ |
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#define WHTEFFICACY 179. /* uniform white light */ |
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#define D65EFFICACY 203. /* standard illuminant D65 */ |
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#define INCEFFICACY 160. /* illuminant A (incand.) */ |
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#define SUNEFFICACY 208. /* illuminant B (solar dir.) */ |
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#define SKYEFFICACY D65EFFICACY /* skylight */ |
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#define DAYEFFICACY D65EFFICACY /* combined sky and solar */ |
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#define luminance(col) (WHTEFFICACY * bright(col)) |
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#define intens(col) ( (col)[0] > (col)[1] \ |
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? (col)[0] > (col)[2] ? (col)[0] : (col)[2] \ |
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: (col)[1] > (col)[2] ? (col)[1] : (col)[2] ) |
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#define BLKCOLOR {0.0,0.0,0.0} |
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#define WHTCOLR {128,128,128,COLXS+1} |
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#define BLKCOLR {0,0,0,0} |
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/* definitions for resolution header */ |
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#define XDECR 1 |
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#define YDECR 2 |
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#define YMAJOR 4 |
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/* picture format identifier */ |
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#define COLRFMT "32-bit_rle_rgbe" |
