Gradient rotation fix.

2021-02-15 18:23:31 -08:00 · 2021-02-15 18:23:31 -08:00 · 219dc23bf9
parent 344062fda2
commit 219dc23bf9
1 changed files with 3 additions and 3 deletions
--- a/src/pixie/gradients.nim
+++ b/src/pixie/gradients.nim
@ -61,11 +61,11 @@ proc fillRadialGradient*(
  let
    distanceX = dist(center, edge)
    distanceY = dist(center, skew)
-    gradientAngle = normalize(edge - center).angle().fixAngle()
+    gradientAngle = normalize(center - edge).angle().fixAngle()
    mat = (
      translate(center) *
-      scale(vec2(distanceX, distanceY)) *
-      rotationMat3(gradientAngle)
+      rotationMat3(-gradientAngle) *
+      scale(vec2(distanceX, distanceY))
    ).inverse()
  for y in 0 ..< image.height:
    for x in 0 ..< image.width: