New LoboFEM Solver
2019, Aug 28    
      Thanks to Learnopengl and imgui, I have rewritten my viewer code. Also, I reformated my solver structure to support more complex models.
Here are more examples.
- Interactive with mouse:
 

- Simulation with constraints:
 

- Simulation with collision (friction force zero)
 

- Simulation with collision (friction force 0.1)
 

- Simulation with collision (friction force 1.0)
 
