What is an Abrash in Computer Graphics?

Abrash is a term used in the context of computer graphics and computer-aided design (CAD) to describe a type of artifact or distortion that can occur when rendering or displaying 3D models or scenes.

In particular, an abrash refers to a sudden, unpredictable change in the appearance of a 3D model or scene, often manifesting as a flicker or flash of light, and typically occurring when the camera or viewpoint is moved or updated.

The term "abrash" is derived from the word "ash," which refers to the residual particles left behind after an explosion or fire. Similarly, an abrash can be thought of as a "residual" or lingering effect that remains after a sudden change in the scene or model.

Abrashes can be caused by a variety of factors, including changes in lighting, shadows, or other elements of the scene, and can be particularly noticeable when rendering complex scenes with many moving parts or dynamic effects.

While abrashes can be distracting or disruptive to the viewing experience, they are generally not a serious issue and can be mitigated through careful scene design, optimization of rendering parameters, and use of techniques such as motion blur or anti-aliasing to smooth out the appearance of the scene.