Theory Photorealistic rendering is implemented by some degree of physical simulation

Theory Photorealistic rendering is implemented by some degree of physical simulation - some of the calculations are real or abstract simulation of physical processes.
"Based on the physical,"architectural visualization the term that is used in the rendering area is widely accepted outside of the physical model or similar, gradually built up in the rendering area of ​​the relevant special skills.
These basic concepts of physics are quite straightforward, but difficult in a few calculations, accurate and complete results; a very good algorithm or to achieve a more general method for rendering purposes it may be difficult to understand. To meet the robust, accurate and practical requirements,architectural rendering implementation must be a complex combination of many different technologies.
Rendering research focused on the improvement of scientific models and their efficient application.