Customize menu > Configure User Paths > Configure User Paths dialog > File I/O panel
The File I/O panel of the Configure User Paths dialog contains most of the file directories in which users store files.
For descriptions of the general dialog controls, see Configure User Paths.
Note: By default these paths are relative to the project folder.

Animations—Path for animation (ANM) files.
Archives—Path for archive files.
AutoBackup—Sets the default path for automatic backup files. If you use the Auto Backup feature, use either the \autoback directory, which is specific to each running version of the software, or a directory that's not shared by any other machine.
Downloads—Path for i-drop files.
Export—Path for exported files.
Import—Path for imported files.
Materials—Path for material library (MAT) files.
Photometric—Path for photometric files, which define various characteristics of Photometric lights
Previews—Path for preview renders.
RenderAssets—Path for mental ray and other rendering asset files, including shadow maps, photon maps, final gather maps, MI files, and render passes.
RenderOutput—Path for rendered output.
RenderPresets—Path for Render Preset files.
Scenes—Path for MAX scene files.
VIZStart—Loads vizstart.max, which provides initial Autodesk VIZ scene settings.