Research On Slicing And Blending Algorithm Based On MaxScript And OSG

The essential research on Forest Landscape Visualization is virtual forest.The rendering of plants such as trees and grass and so on is an important researching field which has great foreground. For example, it can be used in computer-aided landscape designing, environment forcast and visualization, computer animation and virtual scenary rendering such as game etc. The research on tree visualization algorithms is the base of Forest Landscape Visualization.In this paper, tree visualization algorithm of slicing and blending based on MaxScript and OpenGL is realized in OSG which is an efficient and realistic tree rendering algorithm. To obtain textures, we create a tree model in 3dsmax exporting it's trunk and rendering the textures of the crown of the tree based on MaxScript with the use of camera's near and far clip planes. The storage of textures uses tree data structure. Parameters can be input conveniently in user interface to control texture rendering. Slicing and Blending Algorithm is realized in OSG, at the same time, parameters to control the number of sclicing group and the number of slices of each group can be input conveniently by user. The Alpha value of each slice is related on viewpoint and controlled by computing angle between view direction and normal of the slice. Importing the terrain on which the tree will be visualized in order to realize ramble.