Is there a way to determine which normal you came out of from a trigger collision?

[Leonidas]

The event fired when leaving a trigger volume (triggerleave) returns the entity only that exits the volume:

https://developer.playcanvas.com/en/api/pc.CollisionComponent.html#event:triggerleave

So to do that you will have to code some basic maths:

• Get the position of the trigger volume
• Get the position of the entity leaving the volume
• Find the angle between the two points to understand the direction the object is leaving from.

Helpful thread on how to find the angle given two vectors (your positions):

Unity Vector3.angle Equivalent

No but you can get the dot product of 2 vectors. The dot product is equal to the arccos for the angle (if the vectors are normalized). So to get the angle in degrees you can do something like: var dot = vecA.dot(vecB); var angleInRadians = Math.acos(dot); var angleInDegrees = angleInRadians * pc.math.RAD_TO_DEG; Usually though you don’t really need the angle in degrees you can solve your problem with less math… Depends on what exactly you’re trying to do…