基于OSG添加OPENGL着色语言，通过读入一个文本格式的颜色查找表来更改当前模型的颜色，有助于用户学习OSG与GLSL相结合-Add OPENGL shading language based on OSG, by reading into a text format color lookup table to change the color of the current model, helps users learn OSG combined with GLSL