From e1261ba5f1751020374e7e84946c1746c8c58957 Mon Sep 17 00:00:00 2001
From: Matija Kecman <matijak@google.com>
Date: Wed, 7 Jan 2026 09:17:32 -0800
Subject: [PATCH] Fix perturbation rendering in webdemo

PiperOrigin-RevId: 853290958
Change-Id: Ifcea1091633597171c5268d5ee091bea3ddee45b
---
 src/experimental/platform/renderer.cc | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/src/experimental/platform/renderer.cc b/src/experimental/platform/renderer.cc
index 11baa421..0bb1569d 100644
--- a/src/experimental/platform/renderer.cc
+++ b/src/experimental/platform/renderer.cc
@@ -78,13 +78,8 @@ void Renderer::Render(const mjModel* model, mjData* data,
     return;
   }
 
-  if (last_update_time_ == data->time) {
-    mjv_updateCamera(model, data, camera, &scene_);
-  } else {
-    mjv_updateScene(model, data, vis_option, perturb, camera, mjCAT_ALL,
-                    &scene_);
-    last_update_time_ = data->time;
-  }
+  mjv_updateScene(model, data, vis_option, perturb, camera, mjCAT_ALL,
+                  &scene_);
 
   const mjrRect viewport = {0, 0, width, height};
   mjr_render(viewport, &scene_, &render_context_);