GameMaker Sprite masks [SOLVED]

[TorradaIsToast]

I've been messing around with blendmodes and image manipulation on GMS
And I'm trying to create a simple system that makes the part of an overlaying object to be transparent.
Here's a rough sketch of what I want

I've tried to use blendmodes and "gpu_set_colorwriteenable"
but I can't seem to come up with anything that works

Any help would be appreciated

 

[samspade]

I can't remember which one it is off the top of my head, but every time I forgot I go back and read through this: https://www.gmlscripts.com/forums/viewtopic.php?id=1644.

 

[TorradaIsToast]

I can't remember which one it is off the top of my head, but every time I forgot I go back and read through this: https://www.gmlscripts.com/forums/viewtopic.php?id=1644.

Thank you!
After digging through the discussion I was able to discover "gpu_set_blendmode_ext(bm_src_alpha,bm_zero)"
exactly what I wanted

 

[Happy_Malware]

hi, I was searching for the same thing, but I can't make it work. can I have some info?