ogre - How to implement a starwar energy shield in game

I am using Ogre3D.

How can I implement an energy shield like this image?

In the picture, the shield is a semi-sphere, where I want to make it a sphere surround my object. The shield should be transparent (this should be adjustable). Can the community advise how to do this? Thanks.

Answer

I would use:

• a semi-transparent sphere with a nice texture on it,


• a collision detection system to understand where the sphere has been hit,


• vertex and pixel shaders to implement ripples leaving from the contact point (maybe even with bump mapping, without actually displacing vertices).