Ghast is not rendered when its hitbox is not on screen

The bug

Ghast is not rendered when its hitbox not on screen, causing it to disappear in situations where it would usually still be visible, such as looking down on its tentacles. This is also noticeable when turning away from a ghast, the culling is too aggressive and the ghast disappears before it is expected.

Expected result

Ghast would still be rendered as long as it is visible.