cube fine on the sphere a quarter + 6 triangles are missing so I would guess the last xy "quads" you add.
one thing to add might be: why do you use byte ptr and assign byte arrays?
Why not just memalloc() if you are not interested in the TArray class instance at all ...
one thing to add might be: why do you use byte ptr and assign byte arrays?
Why not just memalloc() if you are not interested in the TArray class instance at all ...