IES light is reflected incorrectly in Cycles I'm trying to use IES file which is 4FT light source and Cycles renders a reflection of it as a simple spot. If I try to use that IES on Area light instead of Point light to get an actual 4Ft rectangle, IES data simply doesn't work and it just is a regular Area light. As far as I know IES only works with Point lgiht source anyway.
In comparison I used the same files in 3Ds Max and it reflects a proper rectangle. Are IES lights simply broken in Blender?
Thank you
Problem solved. I used a simple mesh and applied emission to it with IES. But mesh itself should be exactly close to IES parameters. For example 4'x2&quot; rectangle. In that case IES texture is displayed correctly. If your mesh is different from what IES is supposed to cover, you won't get right result.