Some shaders don't work in Android

[RyanBram]

Hi.
I have downloaded latest RetroArch in Google Play. When trying some shader preset, especially from xBR family, I found that RetroArch doesn't respon to the preset. The preset is selectable, but nothing happen after that. I tried xBR lv3 multipass and xBR mlv4 multipass.

My phone is Xiaomi Mi A1 with Snapdragon 625 processor.

[hizzlekizzle]

we'd need to see a log to know what's going on. I suspected at first that your device didn't support GLES 3.0+, but that doesn't seem to be the case.

[RyanBram]

Based on this news https://www.androidauthority.com/qualcomm-opengl-es-3-snapdragon-600-800-156906/ , it seems my processor suports GLES 3.0+. And for the log, how can I get it from Android RetroArch? So I can help you and other developer to identify the issue.

Thanks.

[hizzlekizzle]

You have to get a logcat, either from an app (there are a number of free logcat apps) or by using adb logcat from a connected PC (<- this is the one I usually use).