multiple render targets

Hi I need help with a MRT (Multiple Render Targets) shader in GMS 2. But first credits to the assets artist: Michele "Buch" Bucelli: https://opengameart.org/users/buch Test situation: The view is smaller than the room and follows the player object. I want to draw everything in the game...

Basics: GM Version: Studio v1.4 Target Platform: Windows, Mac OS X, Linux Expectations: You should understand the very basics of shaders and surfaces Summary: This tutorial covers how to set up Multiple Render Targets (or MRTs, for short). That is to say, how to render to multiple surfaces...