From 4a519b9dd8970e640bab70781e9cdcec5cc2fd33 Mon Sep 17 00:00:00 2001
From: Kevin Zakka <zakka@google.com>
Date: Wed, 2 Aug 2023 11:45:58 -0700
Subject: [PATCH] Raise an error if invalid camera name is provided to renderer
 `update_scene`. Fixes #870.

PiperOrigin-RevId: 553211464
Change-Id: I00ab01a9929160dd40a2a789b104a8a6ed0d5a61
---
 python/mujoco/renderer.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/python/mujoco/renderer.py b/python/mujoco/renderer.py
index d541c22f..c82deff5 100644
--- a/python/mujoco/renderer.py
+++ b/python/mujoco/renderer.py
@@ -229,6 +229,8 @@ the clause:
       if isinstance(camera_id, str):
         camera_id = _functions.mj_name2id(self._model,
                                           _enums.mjtObj.mjOBJ_CAMERA, camera_id)
+        if camera_id == -1:
+          raise ValueError(f'camera_id={camera_id} is not defined in the XML.')
       if camera_id < -1:
         raise ValueError('camera_id cannot be smaller than -1.')
       if camera_id >= self._model.ncam: