How to add elevation and shadow to sprite - Android material design

Hi,

How can I add to my (flat) sprite elevation and shadow. Effect similar to:
https://material.io/guidelines/material-design/elevation-shadows.html#elevation-shadows-elevation-android

Regards,
CHP

Maybe you should create same sprite as a shadow with blur/transparency in Ps or Ai(effect->blur->gaussian blur) and place it below your flat sprite, so it would create fake elevation effect. Also you can change shadow sprite scale/transparency in order to make it more elevated or smthg.