Copy and paste the downloaded InvertedColors_LUT.uasset and inverted_lut.uasset into the Basic Passthrough Tutorial’s Content folder.
Set Color LUT file to the passthrough layer
Open the Basic Passthrough Tutorial project.
Double-click to edit InvertedColors_LUT.uasset and set Lut Texture to inverted_lut.uasset.
Back to the main scene window.
On the World Outliner tab, select CameraActor.
Click Blueprint on the toolbar and click Open Level Blueprint.
Right-click on the Blueprint editor and click Create a Reference to CameraActor.
Get the PassthroughLayer from the CameraActor, and then access the Stereo Layer Shape from it.
Enable Color Map.
Set Color Map to Color LUT.
Set Color LUTSource to InvertedColors_LUT.
Your Level Blueprint should set to this:
Save, build, and run the project
Connect Meta Quest headset and run the project.
Put on the headset to test the passthrough window. You should see a small window of passthrough surrounded by a larger opaque field.
Note: Running the game over Link could significantly decrease the iteration time, but you will need to install the PC app, activate Passthrough within it, and enable the All through tonemapper option in the Unreal project settings. Detailed instructions can be found in the Passthrough over Link documentation.
