Hi Can anyone tell me how to calculate the binormal and tangent in tangent space that are needed for bumpmapping? Pretty much every bumpmapping sample i found used some special formulas ( like some sin/cos stuff in a sphere ) to calculate it. Thanks alot

Read the addendum to this tutorial:

http://users.ox.ac.uk/~univ1234/tutorials/simplebump/simplebump.htm

ARGH i knew that tutorial but I didnt read the Addendum lol! Thanks alot for pointing it out )