When you open an obj file with a program like Notepad, it consists of a lot of vertexes and faces, but I can't think of a way to rotate the entire obj file that I called it by myself. For example, if you put a square obj on the screen and you rotate it with your mouse, you have to calculate and move a lot of vertexes in real time at the same time as the mouse rotates, but is there a function in opengl that supports it? Or should I add the rotational value to the whole vertex?
opengl
Clip the MVP to -1 to -1 NDC qualified information Sends to the window coordinate system and is displayed on the screen.
Try implementing matrix aggregation without using external functions such as glut It will help a lot
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