Friction objects when passing over them or under an object

Game Engine Game Engine Support and Discussion
1

Hi,

When passing over an object with that is textured, my player cube gets stuck, I don’t know what caused that exactly? I have an arch the cube passes under, but there is no problem with scale, I thought may the friction setting could be the problem.

Thank you

2

first: blender version? is it upbge?

ok, now: don’t use scaled objects, and don’t use the “size” option in physics. use an object of a size that can fit thru doors and stuff, and set a physics collision bound like sphere, cube, capsule or convex hull, and see if it could fit SPACEOUSLY. if it’s exactly the same size, or if there’s just a single edge out of bound, your object will get stuck. this will happen not only in bge, but in any game engine.

some more questions: what kind of motion are you using? are you applying force or inercy?
if there’s a problem with friction, you will be able to see the object’s friction in the physics tab in upbge, or the material’s friction in the physics box in the material tab in bge.

if you are using normal motion, friction should not affect it. it will affect force and inercy so you have to reach a balance beetwen speed and friction.

3

Hi there,

I am just using a steering brick, and the object is on a path following, and when it passes under the arch part of the scene, it remains stuck, only if I do a rotation of the object, 360 degrees it then can pass. Spinning around in the scene isn’t part of the objective.:grin:

So you suggest using an alternative to a cube. Sure it would be blender game engine, I wouldn’t be using upbge.

4

have you looked at the navmesh to see if the cube is not trying to take a path that goes under an obstacle? another problem could be obstacle. don’t activate obstacle on complex geometries, make smaller simpler objects instead, like one cube for each pillar or the walls of the arch. also look at obstacle size and i think there’s a height option too. obstacles do no use physics bounds but just absolute distances.

could also be a pathfinding problem and your character is just getting stuck in a situasion imposible to solve thru bge’s obstacle avoidance.

5

I tried the sphere, the good news is as a static that does work going under the arches, they are sphere shaped.

How ever the model goes through the deck it travels on. What could be the solution to that?

Thanks.