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By Design
Votes
0
Found in
2017.4.11f1
Issue ID
1096369
Regression
No
[Android] Alpha channel is not being captured when OnRenderImage function is being used in the script
To reproduce:
1. Open attached project
2. Build the application to the Android device
Actual result: The Alpha channel is not captured in the android device.
Expected result: The Alpha channel should be captured in the android device.
Reproduced with: 2017.4.11f1; 2017.4.14f1; 2018.2.14f1; 2018.3.0b8; 2019.1.0a7
Tested with:
VLNQA00025, Xiaomi Mi 5s (MI 5s), Android 6.0.1, CPU: Snapdragon 820 MSM8996, GPU: Adreno (TM) 530
VLNQA00124, Google Pixel 2 XL (Pixel 2 XL), Android 9, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
Note: if you disable the CheekyCameraBlur script on the BoostRewardDisplayCardCapture prefab, the alpha channel is captured.
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Resolution Note (2019.1.X):
Android player settings must have 32-bit display buffer enabled to allow post processing effect with alpha channel.
As stated in https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnRenderImage.html: "Android: Use the Android Player Settings to make changes. Select the Use 32-bit Display Buffer option to use a post-processing effect with the alpha channel, or experience Banding Effects. The alpha channel is not available in a 16-bit Render Texture."