# Bullet: Get steepness or slope between positions

In a CharacterController object, there is

setMaxSlope(btScalar slopeRadians)
The max slope determines the maximum angle that the controller can walk up.


But how about knowing it in advance? Like check if the position where the character will move next is walkable (i don't know the correct word) or not? Is that possible? Any suggestions on how should I go about this?