Home › Forums › GAMES在线课程(现代计算机图形学入门)讨论区 › 透视投影转换为正交投影中的n、f是正是负? Tagged: 透视投影 This topic has 1 reply, 2 voices, and was last updated 3 years, 4 months ago by happyfire. Viewing 1 reply thread Author Posts 2021年4月22日 at 下午2:34 #8237 Score: 0 mjdxyrParticipant 我看作业1中zNear和zFar是正数,但是摄像机不是向-Z轴看的吗? 2021年7月5日 at 下午10:17 #8789 Score: 1 happyfireParticipant Karma: 4 pts 因为他给出的参数zNear和zFar就是正数啊,那么只能是距离值了,人家又没说是坐标。你设置坐标时取一下负就行。 当然了,因为老师课上讲的时候都是用的坐标,这个地方给距离值我感觉是有点会误导。我想这个主要是遵循一些习惯罢了,比如OpenGL的同款函数的参数都是距离值(正数) This post has received 1 vote up. Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In