graphic

The Khronos group develops, puplishes and maintains royalty-free interoperability standards for 3D graphics, virtual reality, augmented reality, parallel computation, vision acceleration and machine learning

Some standerds include:

• OpenGL
• Vulkan
• glTF (Graphics Library Transmission Format) - a standard format for 3D scenes and models

Vulkan is a low-overhead, cross-platform 3D graphics and computing API. (Can it be considered the successor of OpenGL?

A quaternion consists of a scalar and a vector with thee elements.

The vector represents the axis about which an object is rotated.

The scalar represents the amount or rotation.

Quaternions are used instead of matrices because

• matrices suffer from Gimbal Lock
• Quaternions use less memory