IES light help...
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Just started to deal with IES light.
Can someone write basic instructions how to make IES light work!? Or maybe some simple tutorial with pictures!Tnx in advance!
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Which render engine are you using?
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Oops, sorry, I didn't mention that Im using V-ray 1.48.93 version!
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@sixto said:
Oops, sorry, I didn't mention that Im using V-ray 1.48.93 version!
some tutorials i have written. http://sketchupvrayresources.blogspot.com/p/free-hdri.html
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A note with using IES lights, is that you really need to crank up the Power before you see them. This is a common problem that people experience. You may need to turn it up to something like 50,000 before you see some light. It all depends on the file you are using. It's not uncommon for a setting of 300,000-500,000 power on an IES light.
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That's true, but another trick is to set the intensity multiplier to 0... in that way vray will use the intensity registered in the IES file
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Yes, that's true but I have found that you are going to want more flexibility than that, so it's good to understand that you need a very high value in order to start seeing some light from an IES file.
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The other factor in this is if you use the physical camera and use realistic values for night-time photography (low shutter speed, large aperture, high iso) you will be able to use more realistic lumen values.
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