I'm using WebGL and glMatrix and I implemented a camera. When a move backward, no problem. But when I move to the side and particularly forward, the camera becomes all glitchy. I implemented almost exactly the same camera before in C++ and it worked perfectly. I put the whole code on jsFiddle (with glMatrix because it's not in the list and I didn't find a url, sry).
Click and move the mouse to move around.
Also, the more I decrease the speed of the camera movement, the more it works well. I put a high speed to dramatize the effect. I know I should make the speed of the camera depend on the time between each frame, but I haven't implemented an fps counter yet.
Edit: Hum, that's strange. In jsFiddle the camera seems to work better when moving forward.