XR - Calibration procedures

The calibration procedures aim to ensure a cohesive image while doing virtual production and set extension, by establishing a visual bridge between the real world (captured by the camera) and the virtual world (generated by Smode). It is considered the most critical aspect of XR projects.
To initiate the calibration process, ensure you have a Video Input Extract the image from a Video Input Device Read More connected to the input camera device.
In the Stage 3D modeling of the real-world video setup Read More , click on the XR Calibrator A specific tool for XR calibration Read More icon on the Physical Camera A camera that simulate a real-one Read More .
In the XR Calibrator A specific tool for XR calibration Read More window, select the right Video Input Extract the image from a Video Input Device Read More and point the camera at the LED screens.
Ensure your Physical Camera A camera that simulate a real-one Read More is within a Stage Elements Group Group multiple stage elements together Read More and set the appropriate resolution in the Group's parameters to match the real camera device. Also, ensure that you follow the correct layer order as explained in the topic: Camera Tracking Create and configure a Tracking System and Physical Camera Read More .


There are three different calibrators:

• XR - Latency Calibration Automatically evaluate the amount of frame delay between sending a picture to the stage and receiving it back through the camera. Read More : Automatically assesses the frame delay between sending an image to the LED screens and receiving it back through the camera.
• XR - Geometry Calibration Lets Smode know the position of cameras and Led Screens in the real world Read More : Adjusts the placement of the Tracking System To visualize tracked points using a tracking device Read More , corrects the position of the Tracker a Tracker represent a real tracker and is part of a Tracking System Read More and modifies the Camera Model of the Physical Camera A camera that simulate a real-one Read More .
• XR - Color Calibration Blend perfectly the walls colors with the virtual surrounding. Read More : Generates a Lookup Table (LUT) that can be applied later on the set-extension with a Smart Lut Modify colors using a LUT from a XR Display information Read More .

It's important to follow the order of these calibration steps. The Geometry calibrator relies on information from the Latency calibration. Then, the Color calibration needs the information provided by both the Geometry and Latency calibrators.
Therefore, the calibration must be done in the following order: 1) Latency
2) Geometry
3) Color