Narrator: If you've seen "Toy Story 4," you've probably noticed that ... and props and mold them into a 3D mesh, then sculpt and refine these builds until they're satisfied. In constructing ...

For years, 3D models, both in CG-animated movies and video games, had been mapped with polygons. That made some characters come out looking patchy, like Andy in "Toy Story," whose hand isn't ...