I usually use a trick with normal max lighting to use a gradient map with the gradient type set to lighting as a mask between lit and shaded area. however when using vray sun for lighting the lighting is so bright that this method doesnt work. anyone know any other tricks i could use on this?

falloff is the same as gradient ramp except you get more control over gradient ramp. max uses those assuming that dark = 0 brightness and bright = 255. but with vray sun in the picture dark = reeeeally bright by max standards, and bright = eeeeven brighter

ok. how about max script. is there a way to have a maxscript act like a blend material that can check a pixel on an object. see how bright the lighting on it is and if the lighting falls between 1 value and another value blend two other materials together. anything below a value renders 1 material fully and anything above the other value renders the other material fully. maybe you can supply a base material that it will use when checking the lighting

Not that I’m aware of. Not sure how much you can really do with scripted materials. There has to be a way to do this though. I wish there were “If/then” checks within the slate material editor.

im sure there has to be a way for max to analyse the brightness of a pixel and apply a material based on that. when you right click in vfb it can give you color info on the image so why not be able to use that info while rendering

Absolutely, but that would be a plugin material. You’d have to use the SDK kit for that. Maybe someone else could comment on the plausibility of creating that plugin material as I have no experience with the SDK.

bummer. why did gradient ramp have to be so limited

BerconGradient has a lighting option. I havent tested it with VRay sun though. http://www.ylilammi.com/BerconMaps.shtml

hm, I knew the light/shadow option is not working properly. does it work with other vraylights? best regards themaxxer

it would work with any light thats using normal 3dsmax light levels. but the second you start using real lighting levels then that light is way too bright for the normal gradient. havent tried bercon gradient as yet

gradient map problem

V-Ray V-Ray Common Off-topic

MoonDoggie November 2, 2011, 7:19pm 2

Could you use Falloff textures on the objects set to “Shadow / Light”?

I’m not quick sure what you’re looking for though

Poilished or Brushed Steel IOR ?

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gradient map problem

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