Irrlicht Engine

Just in case of someone else would make the same mistake that I made : If I understood correctly the math explanations I just read about rotations using quaternions, I think that I made a mistake doing a direct multiplication of the quaternions. The right way seems to be to use a quaternion to build...

Thank you for your answers! @ Abraxas) So a rotation of (0,0,0) corresponds to a heading of (0,1,0) This was the missing information!.... where I could expect to go if I hadn't any starting reference? It's more clear now. About the wiki pages, i read them many times but even if if think i understood...

Thank you both! @smso I had a matrix function to do objetct's relative rotations but none so far that worked using world space, so this will be very useful. :) Beyond the usefulness of this one, I really want to understand what's the mistake(s) I made using quartenions. To multiply two quaternions i...

Hi all, I'am new to Irrlicht and i'm trying to solve a node rotation issue for about a week. I searched through the forum and found explanations about the "gimbal lock" problem and a way to avoid it using quaternions. so, i wrote the following function which works fine except when a node i...