綺麗でかっこよく仕上がっていて、とてもうれしいです。真面目に描いてよかったとおもいます。

コメントどうもですｗ
次はもう少し見栄えする塗り方を考えて塗りたいところです。

Hey StimpY. Something’s definitely gone wrong then since the frustum culling is working in the article above. I’d recommend setting up the test app in the article—unchanged—with the same camera and object as your app and then either using a debugger or logging out the view frustum culling code:What are the planes in Camera3D.updateWorldToClip?Which plane/sphere test fails in CaIFia3D.isSphereInFrustum?Camera3D.rsPointmnerustum is simpler, so perhaps try stepping through there as well.