Apply velocity in direction your facing (including up)

Is this related to your other posts? Your request seems in direct contradiction to this one, where you ask for movement to only affect the z axis, and seems like you’ve almost succeeded.

If it’s not then you can remove .z to apply the speed in any direction forward-facing and fix the type issue. It may need to be negative since forward is negative z.

velocity = -camera.basis.z * SPEED

but I think we’ve been here before too