Skip to content

Memory access fault on constraint creation #421

Description

@jackdigitalinsight

crash.html.txt

The attached simple example A-Frame/Ammo scene has a kinematic parent and dynamic child, with functions (to type in on the browser console) to attach (add constraint), detach (remove constraint), and move the kinematic parent. Running in Chrome on Windows 10, if physics has moved the dynamic child since loading, the attach() throws a memory fault at Ammo.destroy(bodyTransform) near the end of the ammo-constraint component createConstraint function.

e.g.
move() (pushes unattached child away) then attach()
throws the fault, while
attach(), move(), move(), detach(), move(), attach() (where the child only moves when attached)
works

bodyTransform is set near the top of that function:
const bodyTransform = body.getCenterOfMassTransform().inverse().op_mul(targetBody.getWorldTransform());
Does that allocate, or should the function not be destroying it?

Thank you.

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions