IES Texture

 

The IESAn IES light is the lighting information representing the real-world lighting values for specific light fixtures. For more information, visit http://www.ies.org/lighting/. texture uses an IES profile with geometry as an illumination source. To create an IES light source using geometry:

  1. Apply a DiffuseAmount of diffusion, or the reflection of light photons at different angles from an uneven or granular surface. Used for dull, non-reflecting materials or mesh emitters. material to the geometry.

    Figure 1: A Diffuse materialUsed for dull, non-reflecting materials or mesh emitters. applied to a plane

  2. Attach a Texture emission map to the Diffuse material's Emission parameter.

    IESTexture_Fig02_3dsmax_v3_08

    Figure 2: Connecting the Texture emission node

  3. Attach an IES texture to the Texture emission's Distribution parameter and import an appropriate IES file in the IES texture node.

    IESTexture_Fig03_3dsmax_v3_08

    Figure 3: Adding an IES texture map to an Emission's Distribution slot

  4. Select Normal Space as the coordinate space for the IES light projection.

    Figure 4: Selecting Normal Space in the Spherical projection node

    Pictured below are the typical Slate Editor nodes and connections for a IES lighting setup.

    Figure 5: IES lighting node connections