Can't find AO option in transfer maps/output maps

[Anonymous]

I'm trying to make a bake of my model and can't find how to output an AO channel.  I watched some tutorials and assume in old versions MR it still present but not in maya 2018  with arnold.

Thank's in advance.

[mspeer · Accepted solution]

Hi!

That's correct, without MR this does not work anymore.

With Arnold use:

Arnold -> Utilities -> Render Selection To Texture

https://support.solidangle.com/display/A5AFMUG/Render+Selection+to+Texture

[Anonymous]

High there,

I am trying to figure out how to bake my AO maps from my high poly model to my low poly, now that it's not an option in Transfer Maps. Using the Arnold utilities described below will bake to the High Poly uv set, which is not what I want. How can I bake from my High to Low? Any help would be awesome!

Thanks!

[Anonymous]

Never mind! I figured it out using Turtle. 🙂

[joelsavell]

Hi Nikki, can you tell me how to do this in Turtle?  Thanks!

-Joel

[Anonymous]

Hi Joel,

No problem! Sorry for the delay. Hope this helps!

-N

• Open the Render Settings
  1. Render Using: TURTLE
• If you render this (using the Turtle rendering engine in Maya), you'd get just an AO render (not the AO map bake) SO:
• Open the Render Settings:
  1. Turtle Tab:
     1. Render Type: Baking

1. Sampling Tab:
   • Min Sample Rate: 1.0
     • This is the minimum amount of rays that will be sent by the sampler.
   • Max Sample Rate: 2.0
     • This is the maximum amount of rays that will be sent by the sampler.
     • As Min/Max are adjusted or increased, it affects quality…just keep in mind that this will also increase bake and render times.
   • Filter:
     • This deals with the anti-aliasing

• Baking Tab:
  • Target Surfaces drop down
    • Select your low poly model
    • Add Selected

• Source Surfaces drop down
  • Select your high poly model
  • Add Selected

• Texture Bake Settings drop down:
  • Width: 2048 (or whatever you want this to be)
  • Height: 2048
  • Save to File: Check On
  • Directory: click on the folder icon and navigate to the SourceImages folder
  • File Name: ModelName.tga
  • File Format: Targa (tga) (Or whatever you want)
  • Edge Dilation: 5.0
    • This adds padding to the baked areas
  • UV Range: Default [0,1]

• Outputs --> Shader Outputs drop down:
  • Custom: Check On
  • Custom Shader:
    • Click on the checker box
      1. Maya Surface --> IIr Occ Sampler

1. Make sure both display layers are Visible for the High and Low Poly models that you’re baking, if you have layers
   1. Note – it does matter if other assets are visible in the scene. Compare and contrast the bakes when other models are hidden and then visible.
2. Hit Render

• Repeat for the other assets

[Anonymous]

Thanks for posting the turtle instructions, it really helped 🙂

[joie]

Hi there,

Are there any plans to include Arnold as the engine for transfer maps tool?

Right now it only uses MAYA's own standard renderer, which is kind of useless.

Thanks!

[mspeer]

Hi!

I am sorry, but I can't talk about future products and features.

You can add a new "idea" to "Maya Ideas" or vote for an existing idea.

https://forums.autodesk.com/t5/maya-ideas/idb-p/968