How do you transform a mesh with rig into another?

Hi guys, how do you transform a mesh with rig into another, for example, a game or an animation of the Hulk, that transition between Dr and the monster, how do I make this transition of two totally different mesh’s? For objects, I know you have the Shrinkwrap option, but it doesn’t give me much control over the transition, thanks, you are beautiful, God bless you!

You create the in-betweens.

In some cases this can be as extreme as having an additional mesh and material per pose, or “transformation stage” if you will. But with denser geometry, realtime rendering and bge/upbge limitations I’d say it’s a safer bet to create a third mesh and shapekey deform it.

If you need a material transition as well (and you most likely do) I’d suppose using something like object color to maskout/interpolate nodegroups may do the trick. With uvs that don’t match though, you’re in deep trouble and will have to rebake or remap your textures.

I believe you are talking about interpolation.
The Blender (Game Engine) doesn’t really have a function like that for animation …
But, you can manually tell a object to snap to another object’s location.
That would make it a instant teleportation right? Correct.
So we need to the snapping down (At least to the eye)
You can do this by enabling “Slow Parent” on any of the desired child objects.

Also, there is the Action Actuator option of “Blendin”.

1 mesh = shapekeys, shapekey 1 = Dr. shapekey 2 = hulk modeled from Dr.
2 meshes, no clue.