Hi,

I have got a camera Extrinsic Matrix(transformation from world coordinate to camera coordinate) from PTAM which is 4X4 matrix：

R|t

0|1 R is a rotation matrix and t is a translation vector.

what i want to do is : I load a 3d model ,and want to show it. When I put the camera in different position and different ditection ,I can see different side of the model,but the model is still in the origin position.

I have tried camera.setBack() and camera.setPosition this method ,and camera.setOrientation(),camera.setPosition() as another method ,but it does not reach what i expect.

have you have some idea??

many thanks!!

yours better