I've been trying to get this feature to work for days. There are no examples on the internet and its not in the documentation. I have checked the opengl features of my graphics card and it supports this.

I've tried importing multiple modules/various combinations but nothing seems to work. If you do a search in files of glBeginTransformFeedback you will see that it exists in the OpenGL 3.0 foldr and the NV extension folder. However every time I try and use any of these functions they say the function is not defined. When i do print glBeginTransformFeedback, it prints an object reference.

Can anyone help or suggest another feature similar? I need to store a list of vertex data on the shader and the shader needs to spit back out a new list of vertex data that is to be pipelined back into the shader the next iteration.