UE5 | Eyeball Material in Unreal Engine 5.2 Tutorial

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Creating an Eyeball Material in UE 5.2

Intro:

• Hi guys, I’m Ashif Ali, and welcome to another tutorial! Today, I’m creating an eyeball material in Unreal Engine 5.2, and you’ll learn how to customize the eye color and create a blinking effect. You can find the project file on my Patreon.
• First, make sure to subscribe to my YouTube channel and click the bell icon to get notifications for future videos.

Tutorial:

1. Creating the Eyeball Material:
   • Start by creating a new material named “Eyeball.”
   • Use a sphere as the base mesh for the eyeball.
   • Import a blur noise texture and adjust its settings to create a basic eyeball texture with a black circle in the middle.
   • Sharpen the texture using SmoothStep and tweak its maximum and minimum values.
2. Masking and Coloring:
   • Apply a mask to create the sharp edge for the black part of the eye and adjust the size using the SmoothStep function.
   • Add a gradient and mask it with the spherical coordinates to control the black and white areas.
   • Use a parameter to change the eye color (for example, blue).
3. Creating the Blink Effect:
   • Add a gradient for the blinking effect using texture coordinates and the Sine function.
   • Mask the gradient to only apply to one side of the eye (top or bottom).
   • Animate the blinking effect by multiplying the time with the blink mask, adjusting its speed using a scalar value.
4. Fine-Tuning the Material:
   • Adjust the blink speed and size using parameters, and connect it to the eye texture.
   • Use Power to adjust the sharpness of the blink, making the transition smoother.
   • Apply additional noise for a more dynamic look, and use the Vertex Normal to add some detail.
5. Specular and Redness Effects:
   • Add a specular highlight to the eye to make it shine more realistically.
   • Use SmoothStep and Noise to add some redness around the eye’s edges to simulate irritation or veins.
6. Pulsing Effect for the Eye:
   • Add a subtle pulsing effect to the eyeball while it blinks, using a Time and Sine function.
   • Adjust the pulse speed and intensity to make it feel natural.
7. Final Adjustments and Rendering:
   • Once satisfied with the look, save the material and apply it to the sphere mesh.
   • Create an instance of the material and adjust parameters like color, blink speed, and specular intensity in real time.

Outro:

• The eyeball material is now ready with a customizable color, blinking effect, and additional pulsing. Save the material and instance, and you can make further tweaks in the editor.
• Thanks for watching, and keep learning!