Baseline (Widescreen) Solution & Issues
Depending on hardware limitations, the game's launcher may propose up to four resolutions : 800x600, 1024x768, 1280x720 and 1680x1050.
To play at any other resolution you must :
1) Set the desktop to your desired game res
2) Open regedit and navigate to HKEY_CURRENT_USER\Software\Ubisoft\ShaunWhiteSnowboarding\1.0\Engine
3)edit the decimal value (not hex) of both these keys :
ScreenResolutionHeight
ScreenResolutionWidth
4) The game tends to default to 1680x1050. Should the in-game aspect ratio or resolution not match your setting, try this :
set ScreenResolutionHeight and ScreenResolutionWidth to twice your desktop values, or any other superior resolution of the same aspect ratio.
i.e for a 1360x768 screen
ScreenResolutionHeight 1080
ScreenResolutionWidth 1920
(1920x1080 being a larger 16:9 res)
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
Eyefinity / Surround Specific Solution & Issues
It seems you don't have to use larger registry values than your res though. (However for "faux triplehead" res 2560x683, I had to use ScreenResolutionHeight 1366 and ScreenResolutionWidth 5120 or the in-game res would be 1680x1050.)
5040x1050@57Hz works ok.
Screen change is still anamorphic so you'll get a full-height 16:9 picture pillarboxed into a TripleHead canvas.
For Hor+:
Simple custom resolution to 1680x1050 not in full screen and the game run at 5040x1050 full aspect ratio 4:8.
regedit :
aspectratiooverride 0x000000a0 (160)
fullscreen 0x00000000 (0 )
screenresolutionheight 0x0000041a (1050)
screenresolutionwidth 0x00000690 (1680)
4k UHD Specific Solution & Issues