From 19de607ec8f7566791c035162565b9210dedfecd Mon Sep 17 00:00:00 2001
From: Alessio Quaglino <quaglino@google.com>
Date: Sat, 4 Nov 2023 12:32:47 -0700
Subject: [PATCH] Undo incorrect change in height field processing.

PiperOrigin-RevId: 579502934
Change-Id: Id1fba8fe29a8eb4d4f0358173b34093401e6230e
---
 src/user/user_objects.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/user/user_objects.cc b/src/user/user_objects.cc
index e88f7771..a392d13d 100644
--- a/src/user/user_objects.cc
+++ b/src/user/user_objects.cc
@@ -1612,7 +1612,7 @@ void mjCGeom::ComputeAABB(void) {
   case mjGEOM_HFIELD:
     aamm[0] = -model->hfields[hfieldid]->size[0];
     aamm[1] = -model->hfields[hfieldid]->size[1];
-    aamm[2] = -model->hfields[hfieldid]->size[2];
+    aamm[2] = -model->hfields[hfieldid]->size[3];
     aamm[3] = model->hfields[hfieldid]->size[0];
     aamm[4] = model->hfields[hfieldid]->size[1];
     aamm[5] = model->hfields[hfieldid]->size[2];