made some newly added params function correctly

src/main/kotlin/com/bytedice/bde_particles/Math.kt

@@ -186,7 +186,6 @@ fun sdfSphere(pos: Vector3f, radius: Float, objectPos: Vector3f): Float {
 }
 
 
-
 fun sdfCube(pos: Vector3f, size: Vector3f, objectPos: Vector3f): Float {
   val px = objectPos.x - pos.x
   val py = objectPos.y - pos.y
@@ -215,4 +214,22 @@ fun sdfCube(pos: Vector3f, size: Vector3f, objectPos: Vector3f): Float {
 
 fun normalizeSdf(sdf: Float, radius: Float): Float {
   return if (sdf < 0) (sdf + radius) / radius else 0f
+}
+
+
+fun velToRot(velocity: Vector3f): Vector3f {
+  val normalizedVelocity = Vector3f(velocity).normalize()
+
+  val yaw = Math.toDegrees(atan2(normalizedVelocity.z.toDouble(), normalizedVelocity.x.toDouble())).toFloat()
+
+  val pitch = Math.toDegrees(
+    atan2(
+      -normalizedVelocity.y.toDouble(),
+      sqrt(
+        normalizedVelocity.x.toDouble().pow(2) + normalizedVelocity.z.toDouble().pow(2)
+      )
+    )
+  ).toFloat()
+
+  return Vector3f(pitch, yaw, 0f)
 }