Occlusion culling removes additional objects from within the camera rendering work if they are entirely obscured by nearer objects. The occlusion culling process will go through the scene using a virtual camera to build a hierarchy of potentially visible sets of objects.
What does occlusion culling do?
Occlusion culling increases rendering performance simply by not rendering geometry that is outside the view frustum or hidden by objects closer to the camera. Two common types of occlusion culling are occlusion query and early-z rejection.
How do you use occlusion culling?
3. Baking Occlusion Culling Data
- To open the Occlusion Culling window, use the Window drop-down and select Rendering > Occlusion Culling.
- The Occlusion Culling window has three views: Object, Bake, and Visualization. ...
- Available in all views is the option to Clear or Bake the Occlusion Culling data.
- Click Bake.