From 6f9efbf19a8c1f0298cce3e761f07d828d65056e Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Mon, 17 Jan 2022 08:16:13 +0100
Subject: [PATCH] Follow-up of 9190810c1f5360a7130e9d78d57365e157e9bc43 -
 Modified code to use the new ColorRGBA

---
 src/slic3r/GUI/GLCanvas3D.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index dbcf0e60de..fbb5ba6944 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -1845,7 +1845,7 @@ void GLCanvas3D::reload_scene(bool refresh_immediately, bool force_full_scene_re
                 volume->is_modifier = !mvs->model_volume->is_model_part();
                 volume->set_color(color_from_model_volume(*mvs->model_volume));
                 // force update of render_color alpha channel 
-                bool transparent = volume->color[3] < 1.0f;
+                bool transparent = volume->color.is_transparent();
                 if (transparent)
                     volume->force_transparent = true;
                 volume->set_render_color();