What is Occluder (or object)?

An occluder is something that blocks your view of another thing, like a wall blocking your view of a toy box.

Imagine you're sitting on the floor in your room, looking at your favorite toy car. Then, your big brother walks in front of you and starts playing with his toy dinosaur. Now you can't see your toy car anymore because your brother is acting as an occluder, he’s blocking your view.

You’ve probably seen this happen with objects, too. If a book is lying on top of your drawing, it hides your drawing from sight. The book becomes the occluder, and your drawing is the thing being hidden.

Think about when you stand between a lamp and a wall, your shadow appears on the wall because you’re blocking the light. In this case, you are the occluder, and the shadow is what happens when something blocks the view of another thing.

So whether it's a person, a book, or even your shadow, anything that hides something else from view can be an occluder. An occluder is something that blocks your view of another thing, like a wall blocking your view of a toy box.

Imagine you're sitting on the floor in your room, looking at your favorite toy car. Then, your big brother walks in front of you and starts playing with his toy dinosaur. Now you can't see your toy car anymore because your brother is acting as an occluder, he’s blocking your view.

You’ve probably seen this happen with objects, too. If a book is lying on top of your drawing, it hides your drawing from sight. The book becomes the occluder, and your drawing is the thing being hidden.