render_joints=True animation issue

[javimixet]

Hi. I'm playing with ocp_viewer's animation features and render_joints=True seems to mess the reference for the animation:

from build123d import *
from ocp_vscode import *
from bd_warehouse.pipe import PipeSection

set_defaults(reset_camera=Camera.KEEP)

with BuildPart() as pipe_builder:
    # Create the pipe
    with BuildLine():
        path = TangentArc((0, 0, 0), (2 * FT, 0, 1 * FT), tangent=(1, 0, 0))
    with BuildSketch(Plane(origin=path @ 0, z_dir=path % 0)):
        PipeSection("10", material="stainless", identifier="40S")
    sweep()

    RigidJoint(label="outlet", joint_location=path.location_at(1))

with BuildPart() as ball:
    Sphere(0.25 * FT)

    RevoluteJoint(label="ball_j")

pipe_builder.part.joints["outlet"].connect_to(ball.part.joints["ball_j"])

pipe_builder.part.label = "pipe"
ball.part.label = "ball"

assembly = Compound(
    label="assembly",
    children=[pipe_builder.part, ball.part],
)

show(assembly)
# show(assembly, render_joints=True)

anim = animation.Animation(assembly)
anim.add_track("/assembly/ball", "rz", [0, 1, 2, 3, 4], [0, 90, 180, 270, 360])
anim.animate(1)

anim_nrj.mp4

anim_rj.mp4