From fd16357b6e1566cd7b97ed7d3166044aa35d6925 Mon Sep 17 00:00:00 2001
From: Enrico Turri <enricoturri@seznam.cz>
Date: Thu, 26 Apr 2018 11:03:15 +0200
Subject: [PATCH] Increase z buffer range to avoid clipping while
 panning/rotating the 3D view

---
 lib/Slic3r/GUI/3DScene.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Slic3r/GUI/3DScene.pm b/lib/Slic3r/GUI/3DScene.pm
index 6cdf2a3e5e..88137185b7 100644
--- a/lib/Slic3r/GUI/3DScene.pm
+++ b/lib/Slic3r/GUI/3DScene.pm
@@ -1115,7 +1115,7 @@ sub Resize {
         # is only a workaround for an incorrectly set camera.
         # This workaround harms Z-buffer accuracy!
 #        my $depth = 1.05 * $self->max_bounding_box->radius();
-       my $depth = max(@{ $self->max_bounding_box->size });
+       my $depth = 5.0 * max(@{ $self->max_bounding_box->size });
         glOrtho(
             -$x/2, $x/2, -$y/2, $y/2,
             -$depth, $depth,