3d render to 2d questions

Hi, I have questions of rendering 3d to 2d, thanks.

From view_points
I don’t know why the normalize is needed in this situation to render 3d to 2d.
I thought only need to do the np.dot(camera_intrinsic, points)

After the normalization, [x, y, z] --> [x/z, y/z, 1.0].
Not sure why [x, y, z] can’t do the rendering work.

Thanks a lot!

Try plotting the points on the corresponding camera image before and after normalization, to see the effect the normalization has during rendering

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Got it, thanks a lot!!!