Hi @JoLi ,
Have you tried using Saito OBJLoader instead of PShape?
I have worked with it in the past and it renders 3D objects quite well
I have not tried your code but it might be worth giving a shot to the library mentioned 
Hi @JoLi ,
Have you tried using Saito OBJLoader instead of PShape?
I have worked with it in the past and it renders 3D objects quite well
I have not tried your code but it might be worth giving a shot to the library mentioned