关于视图变换的问题

zhufq

我想在单文档框架下通过菜单实现正视图,侧视图,透视图等视图变换(就像3ds max的视图变换一样),希望高手们指点一下.

snhun

这个,我也很想知道.

应该是需要4个CAMERA才能实现吧?

我只会用1个CAMERA的,
不过多个CAMERA,很有必要.

wingser

这种功能一般用multi viewport 实现的

snhun

3楼高手,帮我看看是不是这样?
在 200*200 的窗口上实现4个屏幕.

glViewport(0,0,100,100);
rend();//-------------------------正视

glViewport(100,0,100,100);
glPushMatrix();
glRotatef(90,0.0f,1.0f,0.0f);
rend();//-------------------------侧视
glPopMatrix();

glViewport(0,100,100,100);
glPushMatrix();
glRotatef(90,1.0f,0.0f,0.0f);
rend();//-------------------------俯视
glPopMatrix();

glViewport(100,100,100,100);
glPushMatrix();
glRotatef(45,0.0f,1.0f,0.0f);
glRotatef(45,1.0f,0.0f,0.0f);
rend();//-------------------------斜视
glPopMatrix();

是这样吗?