Potential minor bug

[Abyssaledge]

Great work!
When I take a quick look at your code, there seems to be a potential minor bug for waymo point cloud projection at https://github.com/ziyc/drivestudio/blob/main/datasets/waymo/waymo_utils.py#L47.

I don't know if it is a simplification made by the author, but I believe it would be better to specify the accurate rolling shutter status for each camera, instead of directly using global shutter. That will be like

        extrinsic = tf.reshape(
            tf.constant(list(cc.extrinsic.transform), dtype=tf.float64),
            [4, 4])
        intrinsic = tf.constant(list(cc.intrinsic), dtype=tf.float64)
        metadata = tf.constant([
            cc.width,
            cc.height,
            cc.rolling_shutter_direction,
        ], dtype=tf.int32)
        camera_image_metadata = tf.constant([
            *img.pose.transform,
            img.velocity.v_x, img.velocity.v_y, img.velocity.v_z,
            img.velocity.w_x, img.velocity.w_y, img.velocity.w_z,
            img.pose_timestamp,
            img.shutter,
            img.camera_trigger_time,
            img.camera_readout_done_time
        ], dtype=tf.float64)

FYI.