The question is closed. It's just cull mode setting on the encoder. And a well ordered vertex triangel array. encoder.setCullMode(.back) encoder.setFrontFacing(.counterClockwise)

Here is the abstract example. In 1/60 sec I get the encoder. Then I have two options. First // Sphere encoder.here is your buffer for the sphere encoder.draw // Cube encoder.here is your buffer for the cube encoder.draw encoder.commit Do I understand correct that the abstract code bellow(Second) will be more fast than code above(First) Second mesh = sphere + cube encoder.here is your buffer for the mesh encoder.draw encoder.commit ?

WTF, that was one of the best video at all session Apple, please explain that move