Hi all!
Still experimenting with baking. I notice that Render from Render to Texture does not create and save the output file using Corona, but does using MentalRay. You can manually save the file from the Corona VFB, but it's an extra step.
Here are the steps I followed
Create box
Apply material (standard, so I can use it in different engines; with checker map so I can see what is baked)
Create two lights, different colours
Save the scene in this form so I can reload as is and test
Corona
Render to texture dialog
Add Corona Beauty element (to go to the self illumination slot, but don't think this affects the result)
Change size to 512 (don't think this affects the result)
Leave the output filename and path at the default (Box001Corona_Beauty.tga)
Hit render in the render to texture
Inspect the material, and the bitmap has not been created and saved; the material node going into self illumination is black, and opening the file locator shows no file with that name has been created
MentalRay
Reload the scene, change to MR engine
Render to texture dialog
Add CompleteMap, to go to the self illumination slot
Change size to 512
Leave the output filename and path at the default (Box001CompleteMap.tga)
Hit render in render to texture
Inspect the material, and the bitmap was created and saved; the material node going into self illumination shows the result, and opening the file locator shows the file exists
Max 2017
Corona Apr 24th daily build