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Votes
0
Found in
2018.3.0a1
2018.3.0a5
Issue ID
1064476
Regression
No
[Android] Black pixels in the middle of the screen when using Lens Distort shader effect on Camera
1. Open the attached "DotRepro" project and "SampleScene"
2. Enter playmode, notice that there are no black pixels in the middle of the screen
3. Build & Run to Android device
Expected result: There are no black pixels in the middle of the screen
Actual result: There are some black pixels in the middle of the screen
Regression introduced in - 2018.3.0a1
Reproducible with - 2018.3.0a7, 2018.3.0a1
Not reproducible with - 2018.2.1f1
Note - Happens with OpenGLES3, OpenGLES2 and Vulkan graphics API's
DUT:
Reproducible with:
Google Pixel XL*, OS:9, CPU:arm64-v8a, GPU:Adreno (TM) 530, Build:google/marlin/marlin:9/PPP4.180612.004/4838310:user/release-keys
Razer Phone*, OS:8.1.0, CPU:arm64-v8a, GPU:Adreno (TM) 540, Build:razer/cheryl/cheryl_ckh:8.1.0/OPM1.171019.011-CKH-180509/5037:user/release-keys
Google Nexus 6P*, OS:8.0.0, CPU:arm64-v8a, GPU:Adreno (TM) 430, Build:google/angler/angler:8.0.0/OPR6.170623.019/4299446:user/release-keys
Xiaomi MI NOTE Pro*, OS:7.0, CPU:arm64-v8a, GPU:Adreno (TM) 430, Build:Xiaomi/leo/leo:7.0/NRD90M/7.11.2:user/release-keys
Not reproducible with:
Samsung SM N950F*, OS:7.1.1, CPU:arm64-v8a, GPU:Mali-G71, Build:samsung/greatltexx/greatlte:7.1.1/NMF26X/N950FXXU3BRA8:user/release-keys
Samsung SM G928F*, OS:7.0, CPU:arm64-v8a, GPU:Mali-T760, Build:samsung/zenltexx/zenlte:7.0/NRD90M/G928FXXS3CQL2:user/release-keys
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Resolution Note (2018.3.X):
Black area at the center of the screen is caused by division by zero, which is due to insufficient precision used in the shader variables.
Updating UV coordinates and other variables from half precision to float fixes this issue.