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MisterP

How to reconstruct PBR beauty in comp

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Hi,

 

Could you kindly please list what aovs are needed to recreate the beauty in nuke when rendering mantra pbr?

(H15 mantra pbr)

 

Many thanks!

P

Edited by MisterP

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Adding combined direct and combined indirect will give you a good foundation. That'll be huge though if youre shading with all those. E.g. if you just need to have control of the diffuse in comp then compers can easily take the image and do a (beauty - diffuseaov) + (diffuseaov*grade). Try to only export what you need

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Adding combined direct and combined indirect will give you a good foundation. That'll be huge though if youre shading with all those. E.g. if you just need to have control of the diffuse in comp then compers can easily take the image and do a (beauty - diffuseaov) + (diffuseaov*grade). Try to only export what you need

 

Thanks, but I was wondering if there was a mantra equivalent to this arnold formula:

direct_diffuse + indirect_diffuse + direct_specular + indirect_specular + refraction + deep_scatter + mid_scatter + shallow_scatter + primary_specular + secondary_specular = Beauty

Edited by MisterP

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it kind of depends how fine grained you break things down...

 

direct lighting can be broken down by source and/or by component (diffuse, reflection, coat, volume, refraction) or simply combined

indirect lighting can be broken down similarly

emission is a special case and can only be direct or indirect or combined

subsurface has sss_single and/or sss_multi depending on what's been enabled on the shader(s)

 

so simplistically, it's "direct + indirect + emission + subsurface = beauty", but in practice you'll probably have a lot more components depending on how many aov's you want to have in your file.

 

another way to figure things is even if you don't get the exact layers you need to reconstruct the beauty, most aov's are going to be something you can subtract from the beauty, color correct, then add back in.  you don't necessarily need to have the ability to throw out the beauty in order to dial things in.

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