GLTools is a custom OpenGLES (proxy) driver, compatible with OpenGLES GPU 2.0 + ARM or x86 processor. If you still do not understand, what is this app, the closest analog known is Chainfire3D. Each reported bug where Magisk is involved is not accepted unless you are absolutely sure there is something wrong with GLTools itself. Magisk is NOT stable (at 15.3) and should not be used if you have other options available.
GLTools is 100% secure if you have custom recovery installed (and you do not disable backup in GLTools install dialog), if you will find it non-working, you can just flash uninstall_gltools.zip in recovery and email me with details (or request a refund ). If you do not have one, it’s not secure, like other related system tools, make sure that you can restore your firmware in case of problems.
Change resolution and rendering bitness in any app, even if it doesn’t support that by default.
Change GPU name and enjoy enhanced graphics even on a noname low-end GPU.
Take full control over textures: now you can decompress/recompress them (even if your GPU doesn’t support that texture format) and resize. Note that decompression feature is available only if you’ll install a plugin (internet is required to do that)
Optimize shaders on-the-fly for optimal performance (the same optimizer is used in Unity3D engine by default)
Enable MSAA or CSAA in any app to improve graphics quality (make sure that your GPU supports that)
Measure gained performance with a nice onscreen FPS counter (or you can output FPS information to Logcat if you are a pro)
GLTools is 100% safe if you have a custom recovery installed (and you didn’t disable backup in GLTools install dialog), if you’ll find it non-working, you can just flash uninstall_gltools.zip in recovery and email me with details (or request a refund).
Test GLTools Cracked On Device Lenovo A7000 Nougat Get Crash and Bootloop Samsung Galaxy Note 3 Marshmallow Work fine Samsung Galaxy Core 2 Kitkat Work Fine