This is AMAZING!

➤ Follow me on Twitter, Discord and Twitch!

I’m part of the official League Partner Program with Riot Games. You can read about the program here:

[stanisawdrewienkowski]

I probably shouldn't be, but I am still surprised that Mordekaisers share their pocket dimensions. One would think that this would be separate space slightly overlaping with real map, and not just a layer that can be accesed by second Morde, but I guess there is only one Underworld in stock, so they have to share

[molamola]

Morde: you’re going into the shadow realm
Nunu: no you

[Caenen_LeagueTechnical]

That's enough!

* unhides your VFX layer *

[Numb_]

This should be left as a special feature but disabled for pro play

[matthewgilchrist]

A brief explanation or assumption about whats going on here from a VFX/game development point of view.

There is a rendering feature referred to as a Custom Depth Pass. A depth pass captures an 'image' per frame encoded with the distance from the camera to the surface that each pixel is representing. This is commonly used for sorting layers of transparent objects like particles in VFX. The custom depth pass is used to capture specific objects or surfaces which allows you mask out specific features and render something different in its place (this is often used to show an outline or representation of a character through a wall like an xray, as the custom depth pass will capture the silhouette of the object regardless of where it is). There are plenty of creative ways to use this unique mask (like selection outlines etc), so it can be utilized in VFX quite well.

Now for this specific effect. I think Mordekaisers ultimate likely uses custom depth to mask out the areas where they want to show the death realm, and they replace the masked areas that use custom depth with the death realm effect likely rendered as a loaded layer that (probably) sits behind the map geometry.
For whatever reason, i imagine that they are using custom depth for something specific to render Nunu/Willumps Ultimate, which is unintentionally applying the mask to display the death realm that is being rendered behind the map when in Mordekaisers Ultimate.

TL:DR
VFX Cheat for Morde interacts with similar VFX Cheat for Nunu, and causes spooky holes.

[Jonathan-qseh]

Ah yes, a literal portal to hell, very thematic for Nunu.

[DagasanK]

In my head I imagine vandiril not sleeping or eating for 3 days straight to try every single skin with every champ combination to find more examples of this bug

[kdotw]

Mordekaiser ults
Nunu: “Ah so you think giant circles are your ally?”

[tongzaggo]

Vandiril finding project skin hidden textures like a kid on Christmas morning is so pure.

[Lumirayz]

Nunu ult so strong, it rips a hole in the fabric of space and time.

[TheBestAsbestos]

These layer bugs are actually a really fun peek behind the curtain, maybe they should do a dev-blog delving into how these textures and effects are actually layered.

[cometsands]

Damn, Riot can't stop adding new features

[thanh]

A Mordekaiser: "Mine for all eternity."
The Mordekaisers: "OUR for all eternity!"

[minhleanh]

Mordekaiser: open the death realm
Nunu & Willump: behold the abyss

[Zenith]

This just keeps getting better and better

[VeloxusGaming]

This happened to me in an ARURF. I so happened to be playing High Noon Mordekaiser and the enemy team so happened to have a Space Groove Nunu by pure chance. It was so bizarre when it happened and I even thought about sending it to Vandiril but I guess someone else beat me to the punch. Maybe it was the Nunu I played against, lol.

[floatindutchman]

Every time i think the game cannot be more broken this dude shows up

[shrmpleTV]

Its so cool that the usually invisible middle is animated

[MattDoesNothing]

Special interaction for the very special customer.

[chillkid]

Am I trippin balls or is it riot games that is trippin balls