This might be a stupid question, but well, i don´t know the answer.
If i have a normalmap which represents the normals in tangent-space, then how would i need to transform those vectors to have them in world-space?
I was thinking i would simply need to take the inverse of the TBN-Matrix (which i would use to get other stuff into my tangent-space). However i am not sure if this would work.
And additionally i don´t know how to get that inverse! I know how to calculate it on a piece of paper, but i don´t know how to teach my cpu that algorithm
So, i would either need to know how to calculate that inverse, or how to do this in another way.