MR - Sun and Sky - Wash out & Flat

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  03 March 2013
Red face MR - Sun and Sky - Wash out & Flat

I'm outta practice when it comes to doing Maya projects. Been a little while since I did a mental ray "sun and sky" indirectly lit scene.

I've just wasted over an hour trying to figure out why my render is so washed out and flat. Especially the red portion of this logo:


I'm losing hair trying to figure this out. I'm sure it's the usual some check box it not selected or shouldn't be selected.

I'm using a Phong on the red. It's like it is glowing. I've tried lowering the sun intensity. I've tried raising it. Doesn't seem to effect the render at all.

Any help would be appreciated.
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Gary Turner
Producer/Director/Animator
Time Warner Entertainment
Honolulu, HI 96813
 
  03 March 2013
What's your Gamma setting?

And do you have any other lights in the scene? Are you using a mia photographic exposure camera shader?

More of your set up might be helpful.
 
  03 March 2013
I vaguely recall there possibly being an issue if something something was connected with a multiplier node prior to any gamma adjustment (the issue would be with the adjustment values), with a rendering becoming desaturated. I heh might be wrong here ofc.
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Are you warm, are you real, Mona Lisa?
 
  03 March 2013
When you apply sun & sky in MR, it adds a gamma correction to your camera. Make sure you set that back to gamma of 1 if you're already color correcting your render view
 
  03 March 2013
Thanks everyone for jumping on this issue.
I found the gamma adjustment setting was defaulting to 2.2. So I tried setting it to 1.0 Here's how the render looks after:


You can see that while it certainly created a greater range of dark to light the Phong is still glowing like it's radioactive.

Here's a screen shot of my Sun & Sky default settings:


Again, any help is greatly appreciated and comes with a mai tai offer if you're ever in the islands. Mahalo.
__________________
Gary Turner
Producer/Director/Animator
Time Warner Entertainment
Honolulu, HI 96813
 
  03 March 2013
Google "Linear Workflow"
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MentalCore - Shading and rendering pipeline for Maya/Mentalray
 
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