3D View: preferences for rotate sensitivity

Added because the current default is too fast
for painting with tablets, see D5385.

Turntable and trackball have different settings because
turn-table uses an angle-per-pixel, where as trackball
values are relative to the view-port size so a scale is used.

The sensitivity is scaled by the pixel size so hi-dpi views don't rotate faster.

1 files changed, 8 insertions, 3 deletions

diff --git a/source/blender/makesdna/DNA_userdef_types.h b/source/blender/makesdna/DNA_userdef_types.h
index 2d3d091c65d..b90f1fd16df 100644
--- a/source/blender/makesdna/DNA_userdef_types.h
+++ b/source/blender/makesdna/DNA_userdef_types.h
@@ -735,11 +735,16 @@ typedef struct UserDef {
   short autokey_flag;
 
   /** Options for text rendering. */
-  short text_render;
-  char _pad9;
-
+  char text_render;
   char navigation_mode;
 
+  char _pad9[2];
+
+  /** Turn-table rotation amount per-pixel in radians. Scaled with DPI. */
+  float view_rotate_sensitivity_turntable;
+  /** Track-ball rotation scale. */
+  float view_rotate_sensitivity_trackball;
+
   /** From texture.h. */
   struct ColorBand coba_weight;