Alpha issue between cloudxr ios client and ue5

Gaming and Visualization Technologies XR – VR/AR/MR CloudXR (VR and AR Streaming)
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  1. Problem description ：
    I am using cloudxr4.0 ios client to test ar function with ue5. I made some modifications to ue5.0 so that the image resources submitted to openvr have alpha distinction. I can prove this by printing logs and image storage, but the alpha value is not distinguished in the images dumped by cloudxr.

  2. Test environment:
    OS：windows10.0.19045
    GPU: NVIDIA GeForce GTX1060
    Grahpics Driver: 560.94
    cloudxr version: 4.0
    cloudxr client: IOS
    openvr app: ue5.0 app named TestCloudXR
    steamvr version: SteamVR beta 2.9.2

  3. Steps to reproduce:
    step1: run the official iOS client , and connect to server
    step2: download and unzip openvr app, click ‘run.bat’ to run TestCloudXR.exe in the root directory
    step3: press ‘~’ to call up the command line of app
    step4: input ‘vr.SaveSteamVRImage 3’ to save images at /TestCloudXR/Saved/；input ‘vr.SaveSteamVRImage 4’ will also print pixel info, you can find it in /TestCloudXR/Saved/Logs/TestCloudXR.log.
    step5: verify and check

  4. Log file and image
    CloudXR Server - SteamVR Log 2024-12-05 10.47.00.txt (2.2 MB)
    Streamer Server Log 2024-12-05 10.47.05.txt (823.2 KB)
    Image.zip (420.5 KB)

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I tested it on a 3060 graphics card and it works

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