如何在openGL中旋转特定对象? [英] How to rotate a specific object in openGL?

问题描述

我在屏幕上有一些对象，我只想旋转其中一个.我尝试使用 glRotatef(...) 函数，但结果 glRotatef(...) 旋转了我所有的对象(旋转相机，也许?).如何只旋转一个?

I have some objects on the screen and would like to rotate only one of them. I tried using the glRotatef(...) function but turns out glRotatef(...) rotates all my objects (rotates the camera, maybe?). How can I rotate only one?

我使用 openGL ES 1.1

I use openGL ES 1.1

推荐答案

只有在绘制您感兴趣的几何图形时，您才需要使旋转生效.

You need the rotation to be in effect only when the geometry you're interested in is being drawn.

... draw stuff ...
glPushMatrix();
glRotatef(angle, 0, 1, 0);
... draw rotated stuff ...
glPopMatrix();
... draw more stuff ...

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