Circle Pupil Animation Node

This node applies a deformation to a normalized IrisUV coordinate to simulate the opening and closure of the pupil.

Render pipeline compatibility

Node	Universal Render Pipeline (URP)	High Definition Render Pipeline (HDRP)
Circle Pupil Animation Node	No	Yes

Ports

name	Direction	type	description
IrisUV	Input	Vector2	Position of the fragment to shade in object space.
Pupil Radius	Input	float	Direction of the incident ray in object space. Either from the camera in rasterization or from the previous bounce in ray tracing.
Maximal Pupil Aperture	Input	float	The normal of the eye surface in object space.
Minimal Pupil Aperture	Input	float	The index of refraction of the eye (1.333 by default).
Pupil Apertur	Input	float	Distance between the end of the cornea and the iris plane. For the default model, this value should be 0.02
IrisUV	Output	Vector2	Position of the refracted point on the iris plane in object space.