Add GuiltyGearXrd to the User Whitelist

Choose Edit Settings in GeDoSaTo and set the renderResolution you wish to downsample from, the resolution to downsample to (preferably your native res), and whatever else you need.
Unlike -Sign- you do not want to set the override width and height - # that out so the tool ignores it.
(Found further down in settings file normally, edited image to show all at once)



This example is for downsampling from 4k (3840x2160) to 1080p (1920x1080).

Edit the resolution in your REDSystemSettings.ini to match the resolution you wish to downsample from in GeDoSaTo and then save and set the file to Read Only.

The config file can be found in your steam install directory\steamapps\common\GUILTY GEAR Xrd -Revelator-\REDGame\Config\



This example is using the same exact render resolution set via GeDoSaTo (3840x2160) via the ResX= and ResY= lines. If yours is different, match that resolution accordingly.

Launch the game with GeDoSaTo running and activated and see what happens. If successful you will see text in the upper left showing resolutions it is downsampling from and to, and the in game visauls will appear much sharper and cleaner with less aliasing & jagged edges.



Use at your own risk, this guide can not guarantee it will work for you and not break anything.
Make sure you choose a downsample resolution you can hit a solid 60fps with during gameplay.

Thanks to Simatron3000 for his tips to get GeDoSaTo working with -Revelator- and to Revo for the original Xrd -Sign- guide.