From 553f4845885ece30be569958e5d99c6770328dd8 Mon Sep 17 00:00:00 2001
From: Filip Sykala <filip.sykala@prusa3d.cz>
Date: Mon, 20 Jun 2022 18:52:45 +0200
Subject: [PATCH] Fix letter without aoi

---
 src/libslic3r/CutSurface.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libslic3r/CutSurface.cpp b/src/libslic3r/CutSurface.cpp
index 8126f1ac1..b66b24ebd 100644
--- a/src/libslic3r/CutSurface.cpp
+++ b/src/libslic3r/CutSurface.cpp
@@ -2708,6 +2708,7 @@ void priv::store(const ProjectionDistances &pds,
     its.vertices.reserve(4 * pds.size());
     its.indices.reserve(2 * pds.size());
     for (const ProjectionDistance &pd : pds) {
+        if (pd.aoi_index == std::numeric_limits<uint32_t>::max()) continue;
         HI hi  = aois[pd.aoi_index].second[pd.hi_index];
         VI vi1 = mesh.source(hi);
         VI vi2 = mesh.target(hi);