implement morph targets

Question 1

Question 2

this commit (f7969c8) parses morph targets as glTF provided. When parsing COLLADA morph targets and rendering them with render engine, I may make changes.

Answer · 2020-04-22T11:08:33.000Z

this commit (f7969c8) parses morph targets as glTF provided. When parsing COLLADA morph targets and rendering them with render engine, I may make changes.