To simulate the forest scenery of nature truly

a method of real-time simulation based on fractal recursion trees is presented in this paper.By constructing parameterized 3D trees model using recursion algorithm

and combi-ning OpenGL function

texture-mapping

Alpha testing and ground shadow are applied to realistic rendering of trees.In addition

random numbers are introduced into algorithm

which generated trees that have different size and various shapes.According to the distance from view point

fine degree o...