@kikoshoung, is the shield a sphere like you are showing here? If so you can just use a fresnel node to accomplish the effect which will move with the shield since it’s based on the mesh normal.
Granted, if you have a more complex mesh, this method falls down a bit:
But if your mesh does not have any hard angles it may still work. Or if the shield is some sort of dome or sphere, this is a very cheap way to go. Otherwise, if you need to do a projection from the view direction which will also require mesh normals and likely show some distortion.
The only way to do it otherwise would be to use the screen space block to ignore the mesh entirely, but then you need some way to shift the 0 coordinate of the screen to align with the mesh position on screen, which could get complicated.