B&W rendering

Complex UV Layout in Maya

Over the last couple of years UV layout in Maya has changed for the better. In this course we're going to be taking a look at some of those changes as we UV map an entire character

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# 1 19-12-2012 , 08:33 AM

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is there a way to render out the images in B&W so i don't have to do them post batch render?

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# 2 19-12-2012 , 01:50 PM

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Hi,

there may be a more technical solution, but you could simply use desaturated textures and non-coloured lights. It's not a physically accurate solution though, as obviously real world black and white photography still captures objects which have colour.

I think you were better of doing it in post tbh,

cheers

gubar

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# 3 20-12-2012 , 06:16 AM

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You can use the photographic exposure lens shader, it has a saturation attribute.

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# 4 21-12-2012 , 12:35 PM

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You can use the photographic exposure lens shader, it has a saturation attribute.

Originally Posted by Gen

Sounds like a better solution than mine user added image

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# 5 21-12-2012 , 11:19 PM

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and where might i find this illustrious tool?

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# 6 22-12-2012 , 03:01 AM

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It's in the "Lens" section of the Mental Ray nodes. Pop open Hypershade, can't miss it.

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# 7 22-12-2012 , 03:02 AM

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awesome thx user added image

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# 8 22-12-2012 , 04:12 AM

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next question is how do i apply it to a camera?

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# 9 22-12-2012 , 07:34 AM

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put it in the lenses shader slot under mental ray in the camera attributes.

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# 10 23-12-2012 , 10:41 AM

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Sorry for hijacking the thread but can someone explain what the top attribute "cm 2 factor" does in this lens shader?

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# 11 23-12-2012 , 11:24 PM

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Sorry for hijacking the thread but can someone explain what the top attribute "cm 2 factor" does in this lens shader?

Originally Posted by ckyuk

From the documentation: "In photographic mode (a non-zero film speed) this is the factor used to convert between pixel values and candela per square meter. In arbitrary mode (a zero film speed), this factor is a multiplier applied when scaling rendered pixel values to screen pixels. This is analogous to the Gain parameter of the mia_exposure_simple shader."