The Substance settings menu can be access via the Substance Shelf or the Substance menu. The settings for this menu are stored in an editable configuration file "substance.cfg."
Config File Locations
Sets the default resolution for a Substance node when the sbsar file is loaded.
Sets the default rendering workflow to use on the Substance node.
Setting preferences specific to the Substance Engine and global to all Substance nodes. The Substance engine is used to compute the Substance textures.
The Substance Engine is available as a CPU and GPU engine. Switching the engine will require restarting Maya. The GPU engine will allow for higher resolutions than the CPU engine.
There can be compute differences between the CPU and GPU engine, so for consistent results, it's best to set the type to the same engine used in Substance Designer.
The CPU Cores and Engine Memory are settings for the amount of resources the Substance engine is allowed to use.
This option allows you to set if the Substance engine compute will block the Maya UI processes. When enabled, the Substance engine will take precedence and block the Maya UI processes. When disabled, the Maya UI processes will not be blocked by Substance engine computations.
Cache Outputs to Disk
Sets the default cache location, file type and cache folder for all newly created Substance nodes in a project.