diff --git a/src/pixie/paints.nim b/src/pixie/paints.nim
index c619299..9b9bbaa 100644
--- a/src/pixie/paints.nim
+++ b/src/pixie/paints.nim
@@ -214,6 +214,7 @@ proc fillGradientAngular(image: Image, paint: Paint) =
   let
     center = paint.gradientHandlePositions[0]
     edge = paint.gradientHandlePositions[1]
+    f32PI = PI.float32
   # TODO: make edge between start and end anti-aliased.
   let gradientAngle = normalize(edge - center).angle().fixAngle()
   for y in 0 ..< image.height:
@@ -221,7 +222,7 @@ proc fillGradientAngular(image: Image, paint: Paint) =
       let
         xy = vec2(x.float32, y.float32)
         angle = normalize(xy - center).angle()
-        t = (angle + gradientAngle + PI / 2).fixAngle() / 2 / PI + 0.5
+        t = (angle + gradientAngle + f32PI / 2).fixAngle() / 2 / f32PI + 0.5.float32
       image.setRgbaUnsafe(x, y, paint.gradientColor(t))
 
 proc fillGradient*(image: Image, paint: Paint) {.raises: [PixieError].} =
diff --git a/tests/benchmark_paints.nim b/tests/benchmark_paints.nim
index f07da26..24e7d93 100644
--- a/tests/benchmark_paints.nim
+++ b/tests/benchmark_paints.nim
@@ -25,3 +25,19 @@ timeIt "GradientLinear horizontal":
     ColorStop(color: color(1, 0, 0, 0.15625), position: 1.0),
   ]
   image.fillGradient(paint)
+
+# timeIt "GradientLinear radial":
+#   discard
+
+timeIt "GradientLinear angular":
+  let paint = newPaint(pkGradientAngular)
+  paint.gradientHandlePositions = @[
+    vec2(500, 500),
+    vec2(1000, 500),
+    vec2(500, 1000)
+  ]
+  paint.gradientStops = @[
+    ColorStop(color: color(1, 0, 0, 1), position: 0),
+    ColorStop(color: color(1, 0, 0, 0.15625), position: 1.0),
+  ]
+  image.fillGradient(paint)