Overview

This is a custom shader/Poiyomi module that gives your eyes, nails, or other parts a red-eye effect or tapetum lucidum: it's the retroreflective effect you see in animals when they look at you with a bright light in your line of sight.

Your eyes will appear normal, but whenever there's a realtime light in a scene (or if you configure it to always be on) your irises will appear to luminesce with a brilliant color of your choosing! The effect is non-uniform, directed at the viewer, changes as your eyes move relative to each viewer, and reflects with a pleasing and complex gradient that's unlike any normal texture. It also works great on fingernails/claws, horns, or any iridescent material on clothing.

Note that due to the way the mirror clone works, you usually won't see light-based effect in normal mirrors. To see your materials glinting during direct light, you'll need to use the camera, stream camera, or face mirror in the radial Tools menu. Others will see your eyes glint normally when you look directly at them.

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Installation

Installation is straight-forward and involves dragging in a unitypackage, dragging the material onto your eye, and using a mask to mask out the areas you want to reflect light.

Masks are already included for the Rexouium, Nardoragon, Kobodal, ChibiKobodal, and Foxipso Base. (The Foxipso base comes with this shader already included and configured.) Two included installation videos show you how to quickly make a mask for any other avatar as well as use it on your nails or other parts of your avatar.

As always, contact information for support is in the README.txt. Please reach out with any problems!

Version History

Version 1.2.1 - February 2nd,, 2026

• Huge update! The shader is now a Poiyomi Module! Adds complete integration with Poiyomi and ships with the module plus a pre-compiled version of "Poiyomi Toon + Foxipso's Glint", along with several variants.
• Hue shifting
• Blinking (Time-based fading in and out)
• Can appear with or without direct light (new setting)
• Audio Link integration
• Works with Poiyomi masks--combine effects
• Many more configurable options

Version 1.1 - February 9, 2024

Bugfix where the base map was showing up in black and white, and only adding color when emission was applied

Version 1.0 - February 9th, 2024

Initial release