From 9db444cd466e6d1e52648c7675169444c67551dd Mon Sep 17 00:00:00 2001
From: Alessio Quaglino <quaglino@google.com>
Date: Tue, 16 May 2023 10:24:15 -0700
Subject: [PATCH] Fixed texture mapping bug. Before this fix, the first texture
 coordinate was not correctly processed.

Fixes #859.

PiperOrigin-RevId: 532501028
Change-Id: I1fe9ca470f4d64af606479b91387e43bc56c23dc
---
 src/user/user_mesh.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/user/user_mesh.cc b/src/user/user_mesh.cc
index c9446fab..99d38e09 100644
--- a/src/user/user_mesh.cc
+++ b/src/user/user_mesh.cc
@@ -711,7 +711,7 @@ void mjCMesh::LoadOBJ(mjResource* resource) {
   }
 
   // flip the second texcoord
-  for (int i=1; i<usertexcoord.size()/2; i++) {
+  for (int i=0; i<usertexcoord.size()/2; i++) {
     usertexcoord[2*i+1] = 1-usertexcoord[2*i+1];
   }
 }