Ability to Add Custom RenderDelegates + Slider Widget Example
Users should be able to write their own RenderDelegate's and add them to the renderer. Generally users shouldn't have to use this. But if they need some niche rendering capabilities this is how they would do it.
One such application, test to implement:
- Implement a vtk slider widget (outside of imstk) in a subclassed RenderDelegate in an example. Hook it up to some spring parameters. This could be extremely useful for tuning without using another UI package.
- Implement a graph widget (outside of imstk) in a subclassed RenderDelegate in an example. Hook it up to spring constraint to show spring force and distance over time. Nice to see the stability.