I am trying to implement what is presented in this very interesting tech conference about animation http://www.gdcvault.com/play/1020583/Animation-Bootcamp-An-Indie-Approach
As a quick summary, it is about making an pose based animation system. Instead of playing animation, we play fix poses and interpolate between different poses to create the motion.
I am successfully doing linear interpolation between different pose by lerping the model space translation and slerping the model space rotation between two poses.
However, at 7:30 it is proposed to interpolate using bicubic interpolation, in order to assure position and speed continuity.
I spend some times thinking and researching about it, but I am not really sure what it means.
Could anyone provide me a bit of guidance on this question
I found the solution here: http://archive.gamedev.net/archive/reference/articles/article1497.html
This links describes how to perform cubic interpolation.