kc3-lang/SDL

diff --git a/docs/README-vita.md b/docs/README-vita.md
index f9aee84..aefa197 100644
--- a/docs/README-vita.md
+++ b/docs/README-vita.md
@@ -20,8 +20,11 @@ To build for the PSVita, make sure you have vitasdk and cmake installed and run:
 Notes
 -----
 * gles1/gles2 support and renderers are disabled by default and can be enabled by configuring with `-DVIDEO_VITA_PVR=ON`
-* `-DVIDEO_VITA_PVR=ON` configured builds support 720p and 1080i resolutions by using `SDL_setenv("")
+  These renderers support 720p and 1080i resolutions. These can be specified with: 
+  `SDL_setenv("VITA_RESOLUTION", "720", 1);` and `SDL_setenv("VITA_RESOLUTION", "1080", 1);`
 * gles2 support via PIB is disabled by default and can be enabled by configuring with `-DVIDEO_VITA_PIB=ON`
 * By default SDL emits mouse events for touch events on every touchscreen.  
   Vita has two touchscreens, so it's recommended to use `SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0");` and handle touch events instead.
+  Individual touchscreens can be disabled with:
+  `SDL_setenv("VITA_DISABLE_TOUCH_FRONT", "1", 1);` and `SDL_setenv("VITA_DISABLE_TOUCH_BACK", "1", 1);`
 * Support for L2/R2/R3/R3 buttons, haptic feedback and gamepad led only available on PSTV, or when using external ds4 gamepad on vita.