PL.Tracker v3.0 update instructions


PL.Tracker is a light tracking system that uses mobile phone with camera tripod to control movinghead for light tracking. It intergrates the gyroscope function of the mobile phone and the sensor data sending APP. Currently, only Android phones or tablets are supported. The latest version adds the multi-light tracking single-point function.

3.0 update content:


The first is the update of the mobile control interface, the layout is more reasonable, and another Settings page has been added.

The Follow mode here allows the controllers of  fixture  2-12  to activate this Follow mode at any time to give the control of fixtures to the master controller of  fixture 1. In this way, multiple fixtures can track single target point. Of course, you can switch back at any time as needed for your performance.

Of course, if the main controller of fixture 1 activates the Follow function on the mobile phone, he can directly obtain the control rights of other fixtures.

When this Follow mode is activated, the parameters of all the controlled fixtrues are uniformly adjusted by the master controller of  fixture 1, such as brightness and color.

Then there are the options for setting the PAN and TILT offset and invert for each fixture. When  controlled individually, each controller can make individual adjustments . When you activate the Follow mode, your settings for the inversion and offset of the PT axis are not controlled by the corresponding mobile phone  to achieve accurate tracking signle point. .

In addition, the main additions on the computer side are the three-dimensional space setting and the multi-lights single-point tracking function.

First of all, it is explained that this Sync function can only be enabled when it is controlled individually. When the Follow mode is enabled, the use of the Sync button will be disabled.

When this Sync function is enabled, the purple options in the  fixture 1 and the channel page are all synchronized options, and these options in other fixture pages will turn green, indicating that they are controlled by the id 1 fixture master control page. The parameters in the channel page are also controlled by fixture 1.

You can turn on this Sync button when you set up your fixtures at the first time, so you don’t have to set it up again on every page.

In addition, the FollowSpot Quantity slider has been adjusted to a 2-fold value change.

For the setting of the PT axis range of the fixtures, it is best to set according to the parameters of the actual fixture, so as to facilitate the synchronization of the three-dimensional environment of the software with the reality. If you don’t use the Follow function, you can also adjust this range to a smaller value to get a larger range of motion.

In addition, when setting up the fixture for the first time, pay attention to the setting of the starting channel number of the Start Channel. The default value starts from 1. If the address codes of multiple fixtures overlap, it will not work correctly.

You can click the Monitor button to open the three-dimensional space setting corresponding to the  fixture. The number of Monitor buttons here corresponds to the number of fixtures used in a ratio of 1:2. For example, Monitor1 contains the position settings of fixture 1-2, and Monitor2 contains the position settings of fixture 3-4.

The origin of this three-dimensional space is at the rear and middle of the stage, and the coordinate system is X+ for the right, Y+ for the top, and Z+ for the rear right-hand coordinate system.


In each Monitor setting, you can also set different monitoring images to access, you can use cameras or capture cards or NDI to access the images. By default, the screen of Monitor 1 is displayed on Monitor 0 , that is, the real-time data and screen of fxiture 1-2  are displayed, and so on, which is equivalent to two operators sharing a monitoring screen. Of course, you can also turn on the ALL IN 1 button to make all monitors show the pictures of all fixtures.

As before, these purple parameters in the 3D space settings are controlled by Monitor1. When you turn on the SYNC option, you can set these parameters synchronously at one time, such as StageFloor (WD) – stage floor width and depth, StageBG (WH) -stage backgrond width and height.

When you need to align the virtual stage with the real camera screen, you can switch the button next to the ALL IN 1 button to LIVE mode, and adjust the Stage Alpha  and Video Alpha video transparency for overlay display.

Then adjust the camera’s position, rotation and FOV parameters to align with the real picture.