diff --git a/Assets/Cryville/Common/Math/CubicBezier.cs b/Assets/Cryville/Common/Math/CubicBezier.cs
index c492f03..7308f70 100644
--- a/Assets/Cryville/Common/Math/CubicBezier.cs
+++ b/Assets/Cryville/Common/Math/CubicBezier.cs
@@ -4,41 +4,24 @@ namespace Cryville.Common.Math {
 	// Ported from https://github.com/arian/cubic-bezier/blob/master/index.js
 	public static class CubicBezier {
 		public static float Evaluate(float t, float x1, float y1, float x2, float y2, float epsilon) {
-			float x = t, t0, t1, t2, tx, d2, i;
-			for (t2 = x, i = 0; i < 8; i++) {
-				tx = CurveX(t2, x1, x2) - x;
-				if (SMath.Abs(tx) < epsilon) return CurveY(t2, y1, y2);
-				d2 = DerivativeCurveX(t2, x1, x2);
-				if (SMath.Abs(d2) < 1e-6) break;
-				t2 -= tx / d2;
-			}
+			float x = t, t0 = 0, t1 = 1, t2 = x;
 
-			t0 = 0; t1 = 1; t2 = x;
-
-			if (t2 < t0) return CurveY(t0, y1, y2);
-			if (t2 > t1) return CurveY(t1, y1, y2);
+			if (t2 < t0) return Curve(t0, y1, y2);
+			if (t2 > t1) return Curve(t1, y1, y2);
 
 			while (t0 < t1) {
-				tx = CurveX(t2, x1, x2);
-				if (SMath.Abs(tx - x) < epsilon) return CurveY(t2, y1, y2);
+				float tx = Curve(t2, x1, x2);
+				if (SMath.Abs(tx - x) < epsilon) return Curve(t2, y1, y2);
 				if (x > tx) t0 = t2;
 				else t1 = t2;
 				t2 = (t1 - t0) * .5f + t0;
 			}
 
-			return CurveY(t2, y1, y2);
+			return Curve(t2, y1, y2);
 		}
-		static float CurveX(float t, float x1, float x2) {
+		static float Curve(float t, float p1, float p2) {
 			float v = 1 - t;
-			return 3 * v * v * t * x1 + 3 * v * t * t * x2 + t * t * t;
-		}
-		static float CurveY(float t, float y1, float y2) {
-			float v = 1 - t;
-			return 3 * v * v * t * y1 + 3 * v * t * t * y2 + t * t * t;
-		}
-		static float DerivativeCurveX(float t, float x1, float x2) {
-			float v = 1 - t;
-			return 3 * (2 * (t - 1) * t + v * v) * x1 + 3 * (-t * t * t + 2 * v * t) * x2;
+			return 3 * v * v * t * p1 + 3 * v * t * t * p2 + t * t * t;
 		}
 	}
 }