QMatrix4x4 to glTranslatef and glRotatef Values

[andreoq]

Hi,

I used QMatrix4x4 to save my transformation. I could also translate my OpenGL Matrix with ;

qreal *data = m.data();
glTranslatef(data[12], data[13], data[14]);

qreal *data = m.data();
glTranslatef(data[12], data[13], data[14]);

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but i cant calculate rotation degrees from QMatrix4x4 for glRotatef simply! With complex math's would be calculable but than no sin to use QMatrix.

Thanks