Square IES profile

[anonymous_user_ec90b8b5]

Actually, there are things called “Light Functions” you can build one with the material editor. In the attached image I created the light function material you see in the corner, in the scene it’s being projected from a SpotLight in the center of the image, the “Outer Cone Angle” controls the size that the Light Function is projected over when using a SpotLight. If it’s used on a Point Light the function is mapped spherically.

There is one Limitation though, it only works on Dynamic aka. Movable Lights.

Can you share this material ?I don’t know how to write it ,Thank you !