Help! How do you decode ETC1/ETC2 Spritesheets with Atlas files?

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forfoxsake

Platinian
Original poster
Mar 18, 2018
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Game Name: Disney Heroes : Battle Mode

Game Version: 1.1.1

Google Play Store Link: https://goo.gl/k5FLZ7

APK Link: Disney Heroes for Android - APK Download

Help Request:
I am trying to extract the assets of this game but I am unsure how to decode some *.png images which are encoded with *.etc1 & *.etc2 formats. Each ETC file is accompanied by an *.atlas which seems to map each asset to a spritesheet.

I have done some research to reverse this compression method and here is a tool that I found (hglm/detex) but have not had any success extracting the assets in the files located within the APK @ `/assets/ETC2/**/*.etc2`

The goal that I am trying to achieve is to extract the hero avatars and gain clues for unreleased content contained within these assets. However, I could be looking in the wrong location. An example of the extracted content can be found here:

Disney Heroes Plan Helper

http://stats.dheroes.pro/h

Thank you for your assistance in helping me better understand how to reverse engineer compiled assets.
 

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