ebiten: update a comment

This commit is contained in:
Hajime Hoshi 2023-08-31 11:50:15 +09:00
parent 009fb504ed
commit ad2d8977b6

View File

@ -45,7 +45,7 @@ func Fragment(position vec4, texCoord vec2, color vec4) vec4 {
// rate indicates how much the 4 colors are mixed. rate is in between [0, 1].
//
// 0 <= p <= 1/scale: The rate is in between [0, 1]
// 1/scale < p: Don't care. Adjacent colors (e.g. c0 vs c1 in an X direction) should be the same.
// 1/scale < p: 1
scale := imageDstSize()/imageSrc0Size()
rate := clamp(p*scale, 0, 1)
return mix(mix(c0, c1, rate.x), mix(c2, c3, rate.x), rate.y)