Visible Surface Detection

Object space techniques are methods for determining which surfaces are visible in a 3D scene by performing visibility calculations in the original coordinate system of the 3D objects (object space), before projection to the screen. Object space techniques w...

The Scan-Line method is an image-space algorithm that determines visible surfaces by processing the scene one horizontal line (scan line) at a time across the viewport. Working Principle: 1. Scan Line Processing: The image plane is divided into horizontal s...

Definition: Area subdivision method is a visible surface determination algorithm that recursively subdivides the projection plane (viewing area) into smaller rectangular regions until each region contains a simple case that can be easily resolved. Basic Pri...

The Z-Buffer (Depth Buffer) method is an image-space visible surface detection algorithm that determines which surface is closest to the viewer at each pixel position on the projection plane. It maintains two buffers: - Frame Buffer: stores color/intensity ...

Definition: Z-Buffer (also called Depth Buffer) is a hidden surface removal technique that stores the depth (z-coordinate) value of each pixel on the screen. Working Principle: - Maintains a 2D array of depth values corresponding to each pixel in the frame ...

The line method (also called the scan-line algorithm) is a visible surface detection technique that processes the scene line by line (usually horizontally across the screen) to determine which surfaces are visible at each pixel position. 1. Scan horizontall...