| 1. | The geometric models are positioned and oriented in the three - dimensional space with a viewpoint easily to view the scene . a series of transformations functions of opengl such as matrix multiplication , include modeling , viewing , and projection operations
Opengl为建立取景体提供了一系列基本的变换函数，它由矩阵乘法来表达，包括模型化操作、视图操作和投影操作。 |
