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Create lightmaps by baking textures and vertices

Basics of mental ray for Maya shading

Create an ambient occlusion map with the Transfer Map tool

 

User Guide > Rendering and Render Setup > Shading > mental ray for Maya Shading > Basics of mental ray for Maya shading > 

Bake lightmaps from the command line

To use mental ray baking (to texture) to save a lightmap from the command line

1. Use the -r lightmap flag.

   For example:

   Render -r lightmap -rd "C:/output" -sel pSphere1 -sel pSphere2 -override 1 -colorMode 3 -occlusionRays 16 

   The above command bakes both pSphere1 and pSphere2 and saves lightmaps in C:/output.

   By default, the texture bake set assigned to each object is used to render the lightmap. In the command above, the bake occlusion is set to 16 occlusion rays. The default values are used for any unspecified texture bake set attributes.

   See Generating lightmaps using the command line for more information.