authorgravatar for hello@nektro.netMeghan Denny <hello@nektro.net> 2023-09-14 18:32:41 -07:00
committergravatar for hello@nektro.netMeghan Denny <hello@nektro.net> 2023-09-14 18:32:41 -07:00
log4e21659b60dc89e43fe00939e60f5d05bb14889e
tree86d49d2e3c3bf052d7ec25a93228417bacf491f2
parentc498be6597f316c93ed6b9f0c13838802fb23123

add LinearRgb.relative_luminance()

1 files changed, 4 insertions(+), 0 deletions(-)

LinearRgb.zig+4
...@@ -24,3 +24,7 @@ pub fn initRGBA(r: u8, g: u8, b: u8, a: u8) Self {...@@ -24,3 +24,7 @@ pub fn initRGBA(r: u8, g: u8, b: u8, a: u8) Self {
24pub fn eql(x: Self, y: Self) bool {24pub fn eql(x: Self, y: Self) bool {
25 return x.r == y.r and x.g == y.g and x.b == y.b;25 return x.r == y.r and x.g == y.g and x.b == y.b;
26}26}
27
28pub fn relative_luminance(x: Self) f32 {
29 return (0.2126 * x.r) + (0.7152 * x.g) + (0.0722 * x.b);
30}