Create at least 5 examples total

[leakec]

• [x] Ball rolling down a plane with PyBullet
• [x] Double pendulum in PyBullet. One shaded with this GLSL shader the other with a reflection material sort of like what is shown here
• [x] Example that showcases KTT. Maybe with 3 frame total? (1) Inertial (2) moving and rotating WRT (1) and (3) moving and rotating WRT (2).
• [x] Amoebic glob.
• [ ] Gravity assist example. Use the ability to jump between frames to show ellipse in global frame vs. hyperbolas in local frame.

[leakec]

I'd like to do one with a fancy GLSL shader. Some neat info here A nice gallery here.

I'm thinking this one would be cool to place on a mesh. I could even replace their Perlin noise with the glslify Perlin noise available in JS, since we can now add extra modules (#12).

[leakec]

I'm going to try and use the above shader plus the transparent head from this scene in a double pendulum example. Will need to add support for MeshLambertMaterial for this: #15.

EDIT: Decided to use a 3D perlin noise version of the shader to avoid seams on the mesh. Also, decided to go with a reflectivity version rather than the transparent head above, since it looks better with the background.

[leakec]

Ran into an unexpected issue with a shader. I was using UV coordinates but the meshes from FreeCAD do not export with UV coordinates. Hence, all UV coordinates = (0,0). Going to try using Blender to add UV coordinates to a mesh using this.

This works really well after a few modifications. Added to utils in 276cdd53ac91485cd3e606d62907bfd0606276a9.

[leakec]

Something like this but done with shaders rather than in the render loop would be a cool demonstration of vertex shaders used in sihm. Calling this the "amoebic glob".