The contradiction between the realistic and real-time of the shadow rendering algorithm has been a fundamental and difficult problem in computer graphics and virtual reality technology.

Combined with shadow volume algorithm,this paper proposes an implicit Euler method,overcomes the problem of real-time shadow for soft object.

This article introduced the general theory of stencil test and building shadow volume firstly,then analysis steps and details of implementing real-time shadows used stencil test and shadows volume technique,and developed a demo program used DirectX to test.

The real-time shadow rendering as one of the key technologies to increase third dimension of virtual scene has always been of concern, which makes computer-generated images more realistic.

It is a difficult and not well done problem for simulation group that real-time shadow is applied to scene simulation system.

It was successful applied on the process of developing a scene simulation system.

Modeling and real-time rendering complex virtual scene of hydraulic engineering;

Research on real-time rendering algorithm in ship visual scenes;

Cloud simulation and real-time rendering for flight simulation;

Per Vertex Lighting has been employed many years in common for real time rendering.

To investigate real time rendering of terrain surface, improve the speed of rendering and the fidelity of simplification, the algorithm taking the distance from vertex to average plane as the error metric and progressive meshes based dynamic simplification was used, which provided view dependent simplification of the model.

The efficient visibility culling method is one of the important research aspects of real time rendering of complexle dynamic scene.