Back to Testing of the Calibration
Introduction
This document discusses the additional tools available in the AR_Example.xcomp that you can use for calibration testing.
Setting Up Additional Tools
NOTE: Many of the tools described below require the use of FREE MODE to be visible. To enter FREE MODE, go to the CAMERAS control board, then click on the Mouse button on the CAMERA MODE control panel:
To access the additional tools, select the MARKERS control panel on the INPUTS control board:
Look for the following pins. Adjust their values if needed:
Show Cameras
Shows the active input cameras in the virtual space It shows them exactly as they are placed in reality.
NOTE: Requires the use of FREE MODE.
Show Cam Heights
Shows the virtual camera's height from the virtual grid. This helps you check if the value stored in the Calibration Profile aligns with the real measurement.
NOTE: Requires the use of FREE MODE.
Show Cam Frustums
Shows the field of view of each camera. Active camera's FoV marked with red stripes.
NOTE: Requires the use of FREE MODE.
Show Input
Show Input has different options as follows.
NOTE: All options can be used in FREE MODE as well.
Off
The virtual elements (AR elements) are shown from the perspective of the selected camera (default mode) or the Free Camera (FREE MODE). The video input is not displayed.
NOTE: Example of Show Input 'Off'. The screenshot was taken from the perspective of the Free Camera.
NOTE: PLAY 1-- is displayed since prerecorded materials were used to capture the screenshot.
NOTE: The PIE CHART is turned on in the screenshot to demonstrate the perspective of an AR element.
From the Current Perspective
The virtual elements (AR elements) are shown from the perspective of the selected camera (default mode) or the Free Camera (FREE MODE). The currently selected camera's video input is shown in the background.
NOTE: Example of Show Input 'From the Current Perspective'. The screenshot was taken from the perspective of the Free Camera.
NOTE: PLAY 1-- is displayed since prerecorded materials were used to capture the screenshot.
NOTE: The PIE CHART is turned on in the screenshot to demonstrate the perspective of an AR element.
From the Perspective of Active Camera
The virtual elements (AR elements) are shown from the perspective of the selected camera (default mode) or the Free Camera (FREE MODE). The currently selected camera's video input is shown from its own perspective in the background.
NOTE: Example of Show Input 'From the Perspective of Active Camera'. The screenshot was taken from the perspective of the Free Camera.
NOTE: PLAY 1-- is displayed since prerecorded materials were used to capture the screenshot.
NOTE: The camera's field of view is displayed since Show Cam Frustrums is turned on.
NOTE: The PIE CHART is turned on in the screenshot to demonstrate the perspective of an AR element.
Crosshair
The crosshair helps you to point your camera more accurately. It is useful to check the calibration of the Center Shift in the case of zoom lenses.
Aim the crosshair at a physical reference point and zoom. If the crosshair stays on the reference point then the test is a success.
Show Crosshair
This switch turns the crosshair on/off.
Crosshair Size
You can adjust the size of the crosshair with this option. The value is in meters.
AR element
The AR_Example scene contains a virtual pie chart. It appears as an AR element in your scene:
NOTE: The screenshot displays the Pie Chart used with a pre-recorded video and tracking footage.
To turn it on navigate to the PIE CHART control panel in the MAIN control board and click on the power button:
NOTE: The default position of the PIE CHART is at the origin point of the tracking coordinate system.
To adjust its position, rotation, and scale, select the PIE CHART control panel and head to the Transformation pin values on the right side (using the default layout) of the screen:
The Transformation parameters are as follows:
Pos: Position, in order of appearance; these are the X, Y, and Z coordinates of the virtual scene. These parameters use meters for measurement.
Rot: Rotation, in order of appearance; these are the rX, rY, and rZ coordinates of the virtual scene. These parameters use degrees for measurement.
Scal: Scale is a multiplier. It multiplies the pie chart's dimensions with the value specified here.
