Create: Simulated/Sable 'ghosting' bug when Real Time Shadows enabled

[skelobones]

Issue Description

See how there's this white scratch on my bread?

This mimics the shape of one of my Aeronautics ships in my dock. These scratches mimic 'item stitching' e.g.

[image credit](https://www.reddit.com/r/Minecraft/comments/s63o3u/what_are_these_transparent_lines_in_between_the/) # Relevant Mods Used

Create Simulated 1.3.0
Sable 2.0.3
Iris 1.8.14-beta.1
Sodium 0.8.12-beta.2
Forgified Fabric Renderer(?) 1.0.10+9afaaf8c19
Veil 4.1.4
Distant Horizons 3.1.2-b
Iris Veil Compat 0.3.0

running on Neoforge 1.21.1

Steps to Reproduce

Unsure exactly. Will add when I reproduce it again.

[skelobones]

* It mimics airship shapes and the scratch moves when I move. This is why I believe it's linked to Sable

[EminGT]

There is no way this is a Complementary Shaders bug unfortunately. This is textbook "mod messed up the shader pipeline" situation. It can only be fixed by the mod developers of whichever one that is the culprit.

[skelobones]

There is no way this is a Complementary Shaders bug unfortunately.

Ok, ok, i want to expand a bit further because any feedback or speculation could be helpful. I want to send off a bug report in somewhere else where it'll be helpful (sable or iris, i don't know)

Complementary is one of few shaderpacks I've found to support Create's outline effects, example:

Some shaders don't provide support for this. This is why I thought it could be a shader-to-shader problem initially. Complementary hasn't had ghosting issues when Real Time Shadows is disabled. I believe that is has to do with something between Sable and Iris. I've struggled to recreate this event but I've understood it follows a pattern relating to Sable contraptions and the reflections.

If I end up being able to recreate this event with different shaders, then it's likely iris. Maaaaybe it has to do with water reflections.