I make meshes by combining several geometries that all have their own morph animations. I use BufferGeometryUtils.mergeBufferGeometries and that seems to do nothing for my morph information.
So I am looking for more detailed documentation on how the morph info is stored in my object. It looks like a bit is stored in morphAttribute on the geometry, and there are two attributes morphTargetDictionary and morphTargetInfluences on the mesh.
What do they do?
Or maybe from functional to technical: I want to morph a specific set of vertices and normals to new positions. How would I go about building such a morph Animation. Important: I just want to effect this set of vertices. Other vertices must be left untouched as they will be animated by a next morph-what-should-I-call-it.
This last part is vital, the example on the website only seems to touch everything.