rotation

OpenGL OpenGL: Basic Coding
1

I am having major problems with rotations.

I have my object and can now transform it (Thanks for the help). I am now struggling with rotatating it.

I want to perform the rotation on the object and then transform it to another part of the screen. So far all I am getting is the rest of my scene rotating and the item I want to move staying still.

Any help as always is much appreciated

Thanks
Sax

2

If you read through this forum, this topic is been answer 1000’s of times.

You can use glPushMatrix / glPopMatrix to save and load the matrix.

Using these commands you can choose what objects are effected by what rotations and translations.

Example:

glPushMatrix(); // Save Matrix
glTranslate(…);
glRotate(…);
Draw_something();
glPopMatrix(); // Load back Matrix to past state.

Now the next thing you draw will not be effect by the translation or rotation done between the Push/Pop Matrix.

So for each object you draw that you do not want their matrix operations to effect objects after,use Push/Pop.