From 10b9928506e6a2f74ef7ccf3b98ac94712e364c3 Mon Sep 17 00:00:00 2001
From: Noisyfox <timemanager.rick@gmail.com>
Date: Wed, 22 Jan 2025 09:57:05 +0800
Subject: [PATCH] Fix issue that the support contact layer is printed in wrong
 filament (#7924)

Fix issue that the contact layer is printed in wrong filament when interface layer number is set to 0

Cherry-picked from prusa3d/PrusaSlicer@ca5f6da08d38c75e0e00ea2604de9709b9caa8aa

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>
---
 src/libslic3r/Support/SupportMaterial.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libslic3r/Support/SupportMaterial.cpp b/src/libslic3r/Support/SupportMaterial.cpp
index b022607bf7..46dd1d8ac9 100644
--- a/src/libslic3r/Support/SupportMaterial.cpp
+++ b/src/libslic3r/Support/SupportMaterial.cpp
@@ -4706,7 +4706,7 @@ void PrintObjectSupportMaterial::generate_toolpaths(
                     // Filler and its parameters
                     filler_interface.get(), fill_params,
                     // Extrusion parameters
-                    erSupportMaterialInterface, interface_flow);
+                    interface_as_base ? erSupportMaterial : erSupportMaterialInterface, interface_flow);
             }
 
             // Base interface layers under soluble interfaces