Convert orientation vector to a direction

cpml/vec3.lua

@@ -221,6 +221,13 @@ function vector:trimmed(maxLen)
 	return self:clone():trim_inplace(maxLen)
 end
 
+function vector:orientation_to_direction()
+	return new(0, 1, 0)
+		:rotated(self.x, new(1, 0, 0))
+		:rotated(self.y, new(0, 1, 0))
+		:rotated(self.z, new(0, 0, 1))
+end
+
 -- the module
 return setmetatable({new = new, isvector = isvector, zero = zero},
 {__call = function(_, ...) return new(...) end})