
CHAPTER 5 ■ GETTING THE MOST OUT OF VERTICES
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■Tip Recipe 5-7 contains an example of a cylinder. Make sure culling is on, and try moving your camera
exactly above the cylinder. See what happens!
When and How to Turn Off Culling
Although culling offers a huge benefit when rendering objects consisting of solid surfaces,
sometimes you’ll want to turn culling off. For example, if you create a building of which a
rectangular wall is composed of only two triangles, this wall would look nice from the outside.
However, when the camera enters the building, the wall would be culled away, and you would
be able to see right through it!
To solve this, ...