ABSTRACT
In the synthesis and rendering of synthetic scenes it is necessary to solve the complex problem of the need of high quality vs. the need for high speed. It is a trade-off between providing high realism of the scene and a producing it at a required frame rate, especially for real-time applications. As hardware and computational power develops further, the demand for realism in computer generated images also increases. Today, it is easy to program Phong shading on the GPU. The most complicated and resource-intensive computing at the rendering stage takes place in the shading of 3-D objects, which have volume effect created by colour gradation. The color intensity and coordinates are detected for every pixel on the surface in the process of shading. Taking into consideration, that high resolution displays are used for representing realistic images, the shading process takes a lot of time.
