From 0de1c235a96141bd04eaaef2f60561e808936ed0 Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Tue, 6 Jan 2015 21:08:33 +0100
Subject: [PATCH] Reversed mouse wheel zooming in 3D once more. #2478

---
 lib/Slic3r/GUI/PreviewCanvas.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Slic3r/GUI/PreviewCanvas.pm b/lib/Slic3r/GUI/PreviewCanvas.pm
index ffa7c61b7..e8f0b4c36 100644
--- a/lib/Slic3r/GUI/PreviewCanvas.pm
+++ b/lib/Slic3r/GUI/PreviewCanvas.pm
@@ -90,7 +90,7 @@ sub new {
         my $zoom = $e->GetWheelRotation() / $e->GetWheelDelta();
         $zoom = max(min($zoom, 4), -4);
         $zoom /= 10;
-        $self->_zoom($self->_zoom * (1-$zoom));
+        $self->_zoom($self->_zoom / (1-$zoom));
         
         # In order to zoom around the mouse point we need to translate
         # the camera target