IES Lights


IESAn IES light is the lighting information representing the real-world lighting values for specific light fixtures. For more information, visit is a file format that contains the description of a light’s properties. It simulates realistic architectural lights based on real-world lights sold by vendors. You can obtain IES profiles online - many light manufacturers provide free IES files to download.


Figure 1: Various IES light profiles shaping the light distribution


You can add IES profiles to an existing light source from the Shader Editor. Connect a Float Image Tex node to a Blackbody emission's Distribution pin to load the IES file into the Float Image Tex node.


Figure 2: Using the Float Image Tex node to add an IES profile to a light source