Frustum Culling Documentation

Frustum culling is a crucial optimization technique used in computer graphics to reduce the number of triangles needed to represent a 3D scene. It identifies objects that are not visible from the camera's perspective, efficiently saving memory and processing power.

Rendering large 3D scenes becomes computationally expensive. Frustum culling helps significantly by only rendering what's visible to the camera. This leads to faster rendering times and reduced memory usage.

The frustum contains the visible portion of the scene. We identify objects that fall *outside* the frustum.

Different methods exist, including: - Bounding box techniques - Determine if an object is within the camera's viewbox - Visibility determination - Checks if an object is visible from specific camera angles.

Let's imagine a simple scene with a cube. The camera is looking from a certain angle. If the cube is outside the camera's viewbox, it won't be rendered.