Evaluation order issues

[jschild]

Problem:
Creating a sphere with a certain radius and then appending it to the scene graph may cause trouble as the sphere geometry might be rendered before the radius is being applied. I.e. a pick selector by error might pick a sphere because it's much larger than specified.
In general:
the evaluation order might not match the scripted order of changes. For a solution there should be a queue mechanism that collects and evaluates changes to an object correctly.