Physical Sky

# 1 28-11-2012 , 07:46 AM

Registered User
Join Date: Oct 2012

Posts: 2

Hi guys,

first time posting in the forum !

I'm still pretty new to the physical sky attributes and connections .

May i know how do i connect the mia exposure photographic node to my mia physical sky connection nodes ?
When I middle mouse button drop the photographic node to the physical sky connection, it pops out the connection editor, but im not sure which connection is actually the correct one for it.

Can anyone kindly explain and help me out here ?

Thanks!

Cheers,
Randomiseddn

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# 2 28-11-2012 , 12:44 PM

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Join Date: Sep 2012

Posts: 31

Hmm as far as I know mia_photographic node is meant to connect to a camera.

So open up camera attributes and under mental ray section plug that in Lens shader using middle mouse button.

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# 3 28-11-2012 , 01:05 PM

Technical Director
Join Date: Feb 2004

Posts: 2,988

zestken is correct. The exposure node is a lens shader. It doesn't make sense to put an exposure only on the sky.

Imagination is more important than knowledge.

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# 4 28-11-2012 , 02:00 PM

The thin red line
Join Date: Aug 2009

Location: England

Posts: 4,472

This node replaces the mia_exposure_simple node that is connected to the camera and the sky nodes but I dont know the connection..............dave

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Last edited by daverave; 28-11-2012 at 02:03 PM.

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# 5 28-11-2012 , 02:09 PM

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Join Date: Apr 2012

Posts: 187

I think this is what you're needing:
https://www.djx.com.au/blog/2007/10/16/choose-exposure/

But if i was you I would learn how to do in manually first. You wont lean anything if you just let scripts do it for you user added image

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# 6 28-11-2012 , 05:48 PM

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Join Date: May 2011

Location: Riyadh, Saudi Arabia

Posts: 525

You will need to execute a mel script to connect the exposure_photographic to the physicalsky node:

connectAttr -f mia_exposure_photographic1.message mia_physicalsky1.miSkyExposure;

If you have Maya2013 then you can use the node editor to connect the "Message" of the photographic node to "MI Sky Exposure". For the cameras you can just MMB drag and drop the node on the lens shader slot under the mental ray tab.

I found that I had to push the cm2 factor to about 5000 to get the exposure photographic node to obey the sunny f16 rule.

Earth: The crazy asylum of the universe.

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