A CPU render engine is a type of software that uses the central processing unit (CPU) to generate images from three-dimensional models. This type of software is often used in computer-aided design (CAD) and computer-generated imagery (CGI) applications. CPU render engines typically provide high quality results but can be slower than other types of rendering software, such as GPU-based engines.
There are many different CPU render engines available on the market, each with its own advantages and disadvantages. Some of the most popular CPU render engines include mental ray, 3ds Max, V-Ray, and RenderMan. Each engine has its own strengths and weaknesses, so it is important to choose one that will best meet.