fix [#26598] zoom view and scaling odd vertices circle

diff --git a/source/blender/editors/transform/transform_input.c b/source/blender/editors/transform/transform_input.c
index be2e140473076378c7714b0151905ddc82bf4ad6..e8d82fb211c4696510d1c284f3778be02f3c0f26 100644 (file)
--- a/source/blender/editors/transform/transform_input.c
+++ b/source/blender/editors/transform/transform_input.c
@@ -92,8 +92,9 @@ static void InputSpringFlip(TransInfo *t, MouseInput *mi, short mval[2], float o
        InputSpring(t, mi, mval, output);
 
        /* flip scale */
        InputSpring(t, mi, mval, output);
 
        /* flip scale */

-       if      ((mi->center[0] - mval[0]) * (mi->center[0] - mi->imval[0]) +
-                (mi->center[1] - mval[1]) * (mi->center[1] - mi->imval[1]) < 0)
+       /* values can become really big when zoomed in so use longs [#26598] */
+       if      ((long long int)(mi->center[0] - mval[0]) * (long long int)(mi->center[0] - mi->imval[0]) +
+                (long long int)(mi->center[1] - mval[1]) * (long long int)(mi->center[1] - mi->imval[1]) < 0)

         {
                output[0] *= -1.0f;
         }
         {
                output[0] *= -1.0f;
         }