From 964f3d73831c6e0c91afa230c161f8c6fcee5399 Mon Sep 17 00:00:00 2001
From: countywest <countywest@naver.com>
Date: Fri, 28 Apr 2023 21:38:52 +0900
Subject: [PATCH] check Z_index correctly in ReadPly

---
 src/util/ply.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/ply.cc b/src/util/ply.cc
index f28c04ded2..a743cd811b 100644
--- a/src/util/ply.cc
+++ b/src/util/ply.cc
@@ -204,7 +204,7 @@ std::vector<PlyPoint> ReadPly(const std::string& path) {
   const bool is_rgb_missing =
       (R_index == -1) || (G_index == -1) || (B_index == -1);
 
-  CHECK(X_index != -1 && Y_index != -1 && Z_index)
+  CHECK(X_index != -1 && Y_index != -1 && Z_index != -1)
       << "Invalid PLY file format: x, y, z properties missing";
 
   points.reserve(num_vertices);