[x3d-public] improvement efforts needed for X3D Example Archives: Basic, Rigid Body Physics

[Don Brutzman]

If someone wants to work on improving the following examples, that will be
a welcome service to the community.  Lack of common X3D models for testing
means that we have little understanding regarding how well implemented
X3D Rigid Body Physics might be.

Since several of the following models have old (circa X3D v3.2)
experimental dependencies on the Xj3D codebase, the examples should likely
be refactored, added to, or (in some cases) retired.

All contributed X3D models, and all efforts to re-establish common baseline
examples for browsers to adopt, will be welcome.

   - X3D Example Archives: Basic, Rigid Body Physics
   - https://www.web3d.org/x3d/content/examples/Basic/RigidBodyPhysics/

Rigid Body Physics modeling deals with objects as solid, unchangeable sets
of mass having a velocity that can be connected together via various joint
types that allow one body's motion to affect another.

These examples support the X3D Rigid Body Physics component
<https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/components/rigid_physics.html>
for
simple kinematics, first implemented by Xj3D
<http://www.xj3d.org/extensions/rigid_physics_examples.html>.

*Warning:* the Rigid Body Physics component in not widely supported and
these examples are insufficiently tested. Further work is welcome.

Relevant specification sections:

   - X3D Architecture, draft version 3.1, clause 37 Rigid body physics
   component
   <https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4.1-CD/Part01/components/rigidBodyPhysics.html>
   -
   https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4.1-CD/Part01/components/rigidBodyPhysics.html

Personal slogan:  the hard part of Virtual Reality is... reality, which
means physics.

Thanks in advance for all efforts.

all the best, Don
-- 
X3D Graphics, Maritime Robotics, Distributed Simulation
Relative Motion Consulting  https://RelativeMotion.info
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