Using 3ds Max 2012, I've been able to use the "render to texture" function to successfully bake my lighting. The only problem is that these image files are always output to TGA files. I need PNG files. If I select all of my objects I want to bake, the option button with [...] that opens up the "file name and type" selection menu is GREYED OUT.
If I select ONE object and try to export only that one object then the "file name and type" menu becomes clickable and I can select my file type. But when I click "render" I get an error message "The following nodes output to invalid directories and will not be rendered" with my one object listed below and it's output directory which is "sceneassets\images"
What am I doing wrong here?