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| author | June McEnroe <programble@gmail.com> | 2018-03-31 00:00:32 -0400 |
|---|---|---|
| committer | June McEnroe <programble@gmail.com> | 2018-03-31 00:00:32 -0400 |
| commit | a85b8817179d671d0ea0bd04d1aa75d5d448e9af (patch) | |
| tree | 246c04d7b21d5dfcdc179bbb91a0c4035a2b25c9 /bin/gfx | |
| parent | Generate default palette in gfxx (diff) | |
| download | src-a85b8817179d671d0ea0bd04d1aa75d5d448e9af.tar.gz src-a85b8817179d671d0ea0bd04d1aa75d5d448e9af.zip | |
Switch to HSV for gfxx palette generation
Diffstat (limited to '')
| -rw-r--r-- | bin/gfxx.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/bin/gfxx.c b/bin/gfxx.c index 015cbf2c..45fe39df 100644 --- a/bin/gfxx.c +++ b/bin/gfxx.c @@ -117,11 +117,10 @@ int init(int argc, char *argv[]) { fclose(file); } else { for (int i = 0; i < 256; ++i) { - double h = i * 360.0 / 256.0 / 60.0, s = 1.0, l = 0.5; - double c = (1.0 - fabs(2.0 * l - 1.0)) * s; + double h = i * 360.0 / 256.0 / 60.0, s = 1.0, v = 1.0; + double c = v * s; double x = c * (1.0 - fabs(fmod(h, 2.0) - 1.0)); - double m = (l - c / 2.0); - double r = m, g = m, b = m; + double r = v - c, g = v - c, b = v - c; if (h <= 1.0) { r += c; g += x; } else if (h <= 2.0) { r += x; g += c; } else if (h <= 3.0) { g += c; b += x; } |