Often saw renderings with them used as kind of decor lighting. But as Mis said, best use is for certain light sources on the wall. They can be used on the ceiling too (you get the shape on the floor). So they are quiet important for this field of 3d, not so much for the rest. Mostly IES lights are created by the light manufacturers to get the real shape of an existing lamp. They are used usually for interior architecture renderings. Sometimes the IES profile is darkening the light substantially and you need to increase the intensity.Ĭouldn't have IES lights explained half as good as Mis did. You don't need a special reader to make them work in Cheetah3D (it would be helpful only if you downloaded a vast amount of files with no image table overview). You need to experiment with those different files which is a bit tedious because when loading it in the light properties nothing shows up so you get no feedback until you render it. IES lights work best when located close to a wall where the pattern will appear, a lamp in the middle of a big room would be rather pointless. When you have a light (point, spot or area) in your scene you can activate IES in the light properties by attaching an IES file like you would attach an image to a material or a mesh to a particle system: this one and store the folder somewhere on your disk where you keep your textures, HDRIs and such.Īn IES light is basically a spot light with some fancy light cone :smile: Then you download one of those packages, f.i. You should do a Google image search for "free IES lights", there you will see many tables containing examples of the light shapes. IES-lights work since version 7.2, with point, spot and area lights.
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