Irrlicht Engine

Thank you, CuteAlien. Sorry, it`s hard to understand me, I ‘am junior in 3d. And I very grateful for your help! on every frame I have new absolutely values of yaw, pitch and roll. For example: for Yaw 40.1->40.2->40.3 degrees. And now I need to rotate my node on this angles (in absolutely coordinate...

Here is minimum possible code of my programm: May be a heve wrong Node axis orientation... :?   #ifdef _MSC_VER // We'll also define this to stop MSVC complaining about sprintf(). #define _CRT_SECURE_NO_WARNINGS #pragma comment(lib, "Irrlicht.lib") #endif   #define _USE_MATH_DEFINES   #def...

//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // Given 2 euler rotations find a quaternion describing the relative rotation from the old to the new rotation irr::core::quaternion getRelativeRotation(const irr::core::vector3df& oldRotationEulerDeg, const irr::core::vector3df& newRotationEulerD...

Thanks, CuteAlien.
But, all methods works incorrectly. The Node has wrong orientation. ((
May be I need inverse some axis...

Please help me!
I need to rotate Node on yaw, pitch, roll angles, and I try to do this by setRotation function, but this method has gimbal lock problem.
I know what my problem can be solved by using quaternions, but I can`t understand HOW.
How can I rotate Node (not shader) by quaternion?