How can I freeze the position / rotation of a Dynamic body on a given axis?

[alienself]

Hi there!

Quick question: in PhysX it is possible to freeze the position / rotation of rigid bodies on a given axis,
for instance freezing the x and z axis which means that the object will only be able to move on the y axis in the physics simulation.

Is there such a concept in Jolt?

[jrouwe]

JoltPhysics/Jolt/Physics/Body/BodyCreationSettings.h

Line 94 in 2473382

EAllowedDOFs mAllowedDOFs = EAllowedDOFs::All; ///< Which degrees of freedom this body has (can be used to limit simulation to 2D)

[PhoenixIllusion]

During runtime, these can also be changed via a Body's MotionProperties

JoltPhysics/Jolt/Physics/Body/MotionProperties.h

Line 92 in 2473382

void SetMassProperties(EAllowedDOFs inAllowedDOFs, const MassProperties &inMassProperties);