User guide

Viz Engine Administrator’s Guide

• RowInterlacedLeftTop/RowInterlacedRightTop: Both images are rendered

interlaced underneath each other, either starting with left or right image.

• ColumnsInterlacedLeft/ColumnsInterlacedRight: Both images are rendered

interlaced beneath each other, either starting with left or right image.

• Depth of field: Allows you to define from where parameters will be taken. When

set to Use editor, parameters for depth of field are taken from the editor. When

set to Focal plane from external, only the focal plane is taken from the external

camera. When set to All from external, all parameters are taken from the external

camera.

5.4.1 EVS Epsio Tracking

EVS Epsio is an optical tracking system produced and sold by EVS Broadcast Equipment

SA. When integrated with Viz Engine, it is commonly used in combination with a Matrox

board.

The Epsio system is based on image recognition and is able to analyze a dirty feed of

field-based sports (e.g. soccer and tennis) to generate camera position, rotation and

field of view information for external render engines like Viz Engine.

As the Epsio system analyzes the video and generates tracking information for the

actual camera, tracking data is shared with Viz Engine by sending video to the Matrox’

live input. The tracking data is used to modify Viz Engine’s virtual cameras accordingly.

For the graphics designer nothing changes, except that the camera is moved by an

external source.

Note: For information on how to setup and connect the Epsio system, please refer

to relevant Epsio documentation.

To activate Epsio tracking for Viz Engine

1. Open your configuration file (e.g. VIZ-<machine name>-0-0.cfg)

• 32-bit system: C:\Program Files\vizrt\Viz3\ or

• 64-bit system: C:\Program Files (x86)\Viz3\

2. Go to SECTION CAMERA

3. Set the evs_tracking_port entry to match the port used by the Epsio tracking

system to send the camera tracking data

• If this port is set to 0, the Epsio system is deactivated

• The evs_command_port is for future use and should be set to 0

4. Restart Viz Engine

• Viz Engine’s EVS Epsio receiver should be ready to use.

To activate Epsio tracking for Viz Engine via command

In Viz Engine the system is activated by the following command:

-1 RENDERER*CAMERA1*EVS_TRACKING SET <delay>