diff --git a/src/slic3r/GUI/3DScene.cpp b/src/slic3r/GUI/3DScene.cpp
index 8eff3e76eb..88af4b5b4f 100644
--- a/src/slic3r/GUI/3DScene.cpp
+++ b/src/slic3r/GUI/3DScene.cpp
@@ -1098,9 +1098,15 @@ void GLVolumeCollection::render(GLVolumeCollection::ERenderType type, bool disab
     GLShaderProgram* edges_shader = GUI::wxGetApp().get_shader("flat");
 #endif // ENABLE_LEGACY_OPENGL_REMOVAL
 
+    ScopeGuard transparent_sg;
     if (type == ERenderType::Transparent) {
         glsafe(::glEnable(GL_BLEND));
         glsafe(::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));
+        glsafe(::glDepthMask(false));
+        transparent_sg = ScopeGuard([]() {
+            glsafe(::glDisable(GL_BLEND));
+            glsafe(::glDepthMask(true));
+        });
     }
 
     glsafe(::glCullFace(GL_BACK));
@@ -1233,9 +1239,6 @@ void GLVolumeCollection::render(GLVolumeCollection::ERenderType type, bool disab
 
     if (disable_cullface)
         glsafe(::glEnable(GL_CULL_FACE));
-
-    if (type == ERenderType::Transparent)
-        glsafe(::glDisable(GL_BLEND));
 }
 
 bool GLVolumeCollection::check_outside_state(const BuildVolume &build_volume, ModelInstanceEPrintVolumeState *out_state) const