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oculus-samples / Unreal-LayerSample

This sample provides blueprints illustrating the use of VR compositor layers to display a UMG UI widgets. The Oculus SDK and other supporting material is subject to the Oculus proprietary license.
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Issues with Using Stereo Layer on Oculus Quest 2: supports depth = true and no alpha channel = false #3

Open SPleshivtsevJob opened 5 months ago

SPleshivtsevJob commented 5 months ago

Hello, I am developing an application for the Oculus Quest 2 using Unreal Engine, and I have encountered a problem when trying to configure the Stereo Layer with supports depth set to true and no alpha channel set to false.

Problem: With these settings, the widgets display with a black color instead of transparency. Everything works correctly in the emulation mode on PC, but on the Oculus Quest 2 (Android) device, transparency does not display properly when depth support is enabled.

What I Have Tried:

Enabling and disabling various combinations of settings for supports depth and no alpha channel. Configuring the widget material: Blend Mode = Translucent Separate Translucency = true Updating to the latest version of Unreal Engine and Oculus SDK. Using masks instead of alpha transparency. Checking all standard rendering and post-processing settings in the project. Engine: UnrealEngine-oculus-4.27.2-release-1.89.0-v62.0

Question: Is it possible to use supports depth = true and no alpha channel = false for stereo layers on Oculus Quest 2? If so, what additional settings or steps are necessary to properly display transparency?

I would appreciate any help or recommendations on how to resolve this issue.

Thank you!

chenunan commented 2 months ago

Have you solved this problem yet?