diff --git a/application/F3DOptionsTools.cxx b/application/F3DOptionsTools.cxx
index a9e0dd65b8..5d6d0e053d 100644
--- a/application/F3DOptionsTools.cxx
+++ b/application/F3DOptionsTools.cxx
@@ -72,6 +72,7 @@ static inline const std::array<CLIGroup, 8> CLIOptions = {{
       { "rendering-backend", "", "Backend to use when rendering (auto|glx|wgl|egl|osmesa)", "<string>", "" },
       { "max-size", "", "Maximum size in Mib of a file to load, negative value means unlimited", "<size in Mib>", "" },
       { "watch", "", "Watch current file and automatically reload it whenever it is modified on disk", "<bool>", "1" },
+      { "frame-rate", "", "Frame rate used to refresh animation and other repeated tasks (watch, UI). Does not impact rendering frame rate.", "<fps>", "" },
       { "load-plugins", "", "List of plugins to load separated with a comma", "<paths or names>", "" },
       { "scan-plugins", "", "Scan standard directories for plugins and display available plugins (result can be incomplete)", "", "" },
       { "screenshot-filename", "", "Screenshot filename", "<filename>", "" } } },
@@ -94,7 +95,6 @@ static inline const std::array<CLIGroup, 8> CLIOptions = {{
       { "animation-index", "", "Select animation to show", "<index>", "" },
       { "animation-speed-factor", "", "Set animation speed factor", "<factor>", "" },
       { "animation-time", "", "Set animation time to load", "<time>", "" },
-      {"animation-frame-rate", "", "Set animation frame rate when playing animation interactively", "<frame rate>", ""},
       {"font-file", "", "Path to a FreeType compatible font file", "<file_path>", ""}, 
       {"command-script", "", "Path to a script file containing commands to execute", "<file_path>", "" } } }, 
   { "Material",
@@ -122,7 +122,7 @@ static inline const std::array<CLIGroup, 8> CLIOptions = {{
     { {"bg-color", "", "Background color", "<R,G,B>", ""},
       {"resolution", "", "Window resolution", "<width,height>", ""},
       {"position", "", "Window position", "<x,y>", ""},
-      {"fps", "z", "Display frame per second", "<bool>", "1"},
+      {"fps", "z", "Display rendering frame per second", "<bool>", "1"},
       {"filename", "n", "Display filename", "<bool>", "1"},
       {"metadata", "m", "Display file metadata", "<bool>", "1"},
       {"blur-background", "u", "Blur background", "<bool>", "1" },
diff --git a/application/F3DOptionsTools.h b/application/F3DOptionsTools.h
index 02ac4c7e43..5d2a8a8599 100644
--- a/application/F3DOptionsTools.h
+++ b/application/F3DOptionsTools.h
@@ -56,6 +56,7 @@ static inline const OptionsDict DefaultAppOptions = {
   { "interaction-test-record", "" },
   { "interaction-test-play", "" },
   { "command-script", "" },
+  { "frame-rate", "30.0" },
 };
 
 /**
@@ -78,7 +79,6 @@ static inline const std::map<std::string_view, std::string_view> LibOptionsNames
   { "animation-autoplay", "scene.animation.autoplay" },
   { "animation-index", "scene.animation.index" },
   { "animation-speed-factor", "scene.animation.speed_factor" },
-  { "animation-frame-rate", "scene.animation.frame_rate" },
   { "font-file", "ui.font_file" },
   { "point-sprites", "model.point_sprites.enable" },
   { "point-sprites-type", "model.point_sprites.type" },
diff --git a/application/F3DStarter.cxx b/application/F3DStarter.cxx
index 3e1b32871a..9c67561af4 100644
--- a/application/F3DStarter.cxx
+++ b/application/F3DStarter.cxx
@@ -85,6 +85,7 @@ class F3DStarter::F3DInternals
     double MaxSize;
     std::optional<double> AnimationTime;
     bool Watch;
+    double FrameRate;
     std::vector<std::string> Plugins;
     std::string ScreenshotFilename;
     std::string VerboseLevel;
@@ -546,6 +547,7 @@ class F3DStarter::F3DInternals
     {
       this->AppOptions.AnimationTime = f3d::options::parse<double>(appOptions.at("animation-time"));
     }
+    this->AppOptions.FrameRate = f3d::options::parse<double>(appOptions.at("frame-rate"));
     this->AppOptions.Watch = f3d::options::parse<bool>(appOptions.at("watch"));
     this->AppOptions.Plugins = { f3d::options::parse<std::vector<std::string>>(
       appOptions.at("load-plugins")) };
@@ -673,7 +675,6 @@ class F3DStarter::F3DInternals
       interactor.addBinding({ mod_t::CTRL, "O" }, "open_file_dialog", "Others", std::bind(docString, "Open File Dialog"));
       interactor.addBinding({ mod_t::CTRL, "F12" }, "take_minimal_screenshot", "Others", std::bind(docString, "Take a minimal screenshot"));
 
-
       // This replace an existing default binding command in the libf3d
       interactor.removeBinding({ mod_t::NONE, "Drop" });
       interactor.addBinding({ mod_t::NONE, "Drop" }, "add_files_or_set_hdri", "Others", std::bind(docString, "Load dropped files, folder or HDRI"));
@@ -762,7 +763,6 @@ class F3DStarter::F3DInternals
   std::mutex LoadedFilesMutex;
 
   // Event loop atomics
-  std::atomic<bool> RenderRequested = false;
   std::atomic<bool> ReloadFileRequested = false;
 };
 
@@ -842,6 +842,7 @@ int F3DStarter::Start(int argc, char** argv)
 
   f3d::log::debug("========== Configuring engine ==========");
 
+  double deltaTime = 1.0 / this->Internals->AppOptions.FrameRate;
   const std::string& reference = this->Internals->AppOptions.Reference;
   const std::string& output = this->Internals->AppOptions.Output;
 
@@ -929,7 +930,7 @@ int F3DStarter::Start(int argc, char** argv)
     {
       // For better testing, render once before the interaction
       window.render();
-      if (!interactor.playInteraction(interactionTestPlayFile))
+      if (!interactor.playInteraction(interactionTestPlayFile, deltaTime))
       {
         return EXIT_FAILURE;
       }
@@ -1079,14 +1080,13 @@ int F3DStarter::Start(int argc, char** argv)
       {
         // Create the event loop repeating timer
         window.render();
-        interactor.createTimerCallBack(30, [this]() { this->EventLoop(); });
 
         // gracefully exits if SIGTERM or SIGINT is send to F3D
         GlobalInteractor = &interactor;
         std::signal(SIGTERM, F3DInternals::SigCallback);
         std::signal(SIGINT, F3DInternals::SigCallback);
 
-        interactor.start();
+        interactor.start(deltaTime, [this]() { this->EventLoop(); });
       }
 #endif
     }
@@ -1342,13 +1342,6 @@ void F3DStarter::LoadFileGroup(
   options.ui.filename_info = filenameInfo;
 }
 
-//----------------------------------------------------------------------------
-void F3DStarter::RequestRender()
-{
-  // Render will be called by the next event loop
-  this->Internals->RenderRequested = true;
-}
-
 //----------------------------------------------------------------------------
 void F3DStarter::Render()
 {
@@ -1511,7 +1504,7 @@ bool F3DStarter::LoadRelativeFileGroup(int index, bool restoreCamera, bool force
     this->LoadFileGroup(index, true, forceClear);
   }
 
-  this->RequestRender();
+  this->Internals->Engine->getInteractor().requestRender();
 
   return true;
 }
@@ -1524,11 +1517,6 @@ void F3DStarter::EventLoop()
     this->LoadRelativeFileGroup(0, true, true);
     this->Internals->ReloadFileRequested = false;
   }
-  if (this->Internals->RenderRequested)
-  {
-    this->Render();
-    this->Internals->RenderRequested = false;
-  }
 }
 
 //----------------------------------------------------------------------------
diff --git a/application/testing/CMakeLists.txt b/application/testing/CMakeLists.txt
index 7635a914a2..7c5006e380 100644
--- a/application/testing/CMakeLists.txt
+++ b/application/testing/CMakeLists.txt
@@ -386,12 +386,11 @@ f3d_test(NAME TestVerboseAnimation DATA InterpolationTest.glb ARGS --verbose NO_
 f3d_test(NAME TestVerboseAnimationIndexError DATA InterpolationTest.glb ARGS --animation-index=48 NO_BASELINE REGEXP "Specified animation index is greater than the highest possible animation index, enabling the first animation.")
 
 # Test interactive animation and speed factor
-f3d_test(NAME TestInteractionAnimationFast DATA InterpolationTest.glb ARGS --animation-speed-factor=1000 --animation-index=-1 INTERACTION NO_BASELINE)#Space;Space;
-f3d_test(NAME TestInteractionAnimationSlow DATA InterpolationTest.glb ARGS --animation-speed-factor=0.01 --animation-index=-1 INTERACTION)#Space;Wait;Space;
-f3d_test(NAME TestInteractionAnimationCameraMovement DATA CameraAnimated.glb ARGS --camera-index=0 --animation-speed-factor=1000 --animation-progress INTERACTION)#Space;MouseMovement;Space;
-
-# Framerate test is a smoke test as event playing seems to break VTK timers
-f3d_test(NAME TestInteractionAnimationFrameRate DATA InterpolationTest.glb ARGS --animation-frame-rate=2 --animation-index=-1 INTERACTION NO_BASELINE)#Space;Wait;Space;
+f3d_test(NAME TestInteractionAnimation DATA f3d.glb ARGS --animation-progress INTERACTION)#Space;Wait;Space;
+f3d_test(NAME TestInteractionAnimationFast DATA f3d.glb ARGS --animation-progress --animation-speed-factor=1.5 INTERACTION)#Space;Wait;Space;
+f3d_test(NAME TestInteractionAnimationSlow DATA f3d.glb ARGS --animation-progress --animation-speed-factor=0.5 INTERACTION)#Space;Wait;Space;
+f3d_test(NAME TestInteractionAnimationFrameRate DATA f3d.glb ARGS --animation-progress --frame-rate=1 INTERACTION)#Space;Wait;Space;
+f3d_test(NAME TestInteractionAnimationCameraMovement DATA CameraAnimated.glb ARGS --camera-index=0 --animation-progress INTERACTION)#Space;MouseMovement;Space;
 
 # A verbose test that needs animation index support
 f3d_test(NAME TestVerboseAnimationWrongAnimationTimeHigh DATA BoxAnimated.gltf ARGS --animation-time=10 --verbose REGEXP "Animation time 10 is outside of range \\[0, 3\\.70833\\], using 3\\.70833" NO_BASELINE)
diff --git a/doc/libf3d/CLASSES.md b/doc/libf3d/CLASSES.md
index cf08386750..c95b52f02e 100644
--- a/doc/libf3d/CLASSES.md
+++ b/doc/libf3d/CLASSES.md
@@ -54,6 +54,7 @@ This API also lets you control the content of the cheatsheet.
 Use `log::setVerboseLevel(log::VerboseLevel::DEBUG)` to print debug information on interaction and command use.
 
 Of course, you can use `start` and `stop` to control the interactor behavior.
+`start` lets you specify time for the event loop and a `std::function` to execute at each loop.
 
 ## Camera class
 
diff --git a/doc/libf3d/OPTIONS.md b/doc/libf3d/OPTIONS.md
index 6c0bc1511b..533e7fb63a 100644
--- a/doc/libf3d/OPTIONS.md
+++ b/doc/libf3d/OPTIONS.md
@@ -26,7 +26,6 @@ scene.animation.autoplay|bool<br>false<br>load|Automatically start animation.|\-
 scene.animation.index|int<br>0<br>load|Select the animation to load.<br>Any negative value means all animations (glTF only).<br>The default scene always has at most one animation.|\-\-animation-index
 scene.animation.speed_factor|double<br>1<br>render|Set the animation speed factor to slow, speed up or even invert animation.|\-\-animation-speed-factor
 scene.animation.time|double<br>optional<br>load|Set the animation time to load.|\-\-animation-time
-scene.animation.frame_rate|double<br>60<br>render|Set the animation frame rate used to play the animation interactively.|\-\-animation-frame-rate
 scene.camera.index|int<br>optional<br>load|Select the scene camera to use when available in the file.<br>The default scene always uses automatic camera.|\-\-camera-index
 scene.up_direction|string<br>+Y<br>load|Define the Up direction. It impacts the grid, the axis, the HDRI and the camera.|\-\-up
 scene.camera.orthographic|bool<br>optional<br>load|Set to true to force orthographic projection. Model specified by default, which is false if not specified.|\-\-camera\-orthographic
diff --git a/doc/user/CONFIGURATION_FILE.md b/doc/user/CONFIGURATION_FILE.md
index 88c84a3a9b..8163edac76 100644
--- a/doc/user/CONFIGURATION_FILE.md
+++ b/doc/user/CONFIGURATION_FILE.md
@@ -68,7 +68,7 @@ The following options <b> cannot </b> be set via config file:
 `help`, `version`, `readers-list`, `config`, `dry-run` and `input`.
 
 The following options <b>are only taken on the first load</b>:
-`no-render`, `output`, `position`, `resolution` and all testing options.
+`no-render`, `output`, `position`, `resolution`, `frame-rate` and all testing options.
 
 Boolean options that have been turned on in the configuration file can be turned
 off on the command line if needed, eg: `--point-sprites=false`.
diff --git a/doc/user/OPTIONS.md b/doc/user/OPTIONS.md
index fe3ee19b23..02cbe3a45a 100644
--- a/doc/user/OPTIONS.md
+++ b/doc/user/OPTIONS.md
@@ -19,6 +19,7 @@ Options|Default|Description
 \-\-no-render||Do not render anything and quit just after loading the first file, use with \-\-verbose to recover information about a file.
 \-\-max-size=\<size in MiB\>|-1|Prevent F3D to load a file bigger than the provided size in Mib, negative value means unlimited, useful for thumbnails.
 \-\-watch||Watch current file and automatically reload it whenever it is modified on disk.
+\-\-frame-rate=\<fps\>|30.0|Frame rate used to refresh animation and other repeated tasks (watch, UI). Does not impact rendering frame rate.
 \-\-load-plugins=\<paths or names\>||List of plugins to load separated with a comma. Official plugins are `alembic`, `assimp`, `draco`, `exodus`, `occt`, `usd`, `vdb`. See [plugins](PLUGINS.md) for more info.
 \-\-scan-plugins||Scan standard directories for plugins and display their names, results may be incomplete. See [plugins](PLUGINS.md) for more info.
 \-\-screenshot-filename=\<png file\>|`{app}/{model}_{n}.png`|Filename to save [screenshots](INTERACTIONS.md#taking-screenshots) to. Can use [template variables](#filename-templating).
@@ -45,7 +46,6 @@ Options|Default|Description
 \-\-animation-index=\<idx\>|0|Select the animation to show.<br>Any negative value means all animations (glTF only).<br>The default scene always has at most one animation.
 \-\-animation-speed-factor=\<factor\>|1|Set the animation speed factor to slow, speed up or even invert animation time.
 \-\-animation-time=\<factor\>||Set the animation time to load.
-\-\-animation-frame-rate=\<factor\>|60|Set the animation frame rate used when playing animation interactively.
 \-\-font-file=\<font file\>||Use the provided FreeType compatible font file to display text.<br>Can be useful to display non-ASCII filenames.
 \-\-command-script=\<command script\>||Provide a script file containing a list of commands to be executed sequentially.<br>Allows automation of multiple commands or pre-defined tasks.
 
@@ -78,7 +78,7 @@ Options|Default|Description
 \-\-bg-color=\<R,G,B\>|0.2, 0.2, 0.2|Set the window *background color*.<br>Ignored if *hdri* is set.
 \-\-resolution=\<width,height\>|1000, 600|Set the *window resolution*.
 \-\-position=\<x,y\>||Set the *window position* (top left corner) , in pixels, starting from the top left of your screens.
--z, \-\-fps||Display a *frame per second counter*.
+-z, \-\-fps||Display a rendering *frame per second counter*.
 -n, \-\-filename||Display the *name of the file* on top of the window.
 -m, \-\-metadata||Display the *metadata*.
 \-\-hdri-skybox||Show the HDRI as a skybox. Overrides \-\-bg-color and \-\-no-background.
diff --git a/examples/libf3d/cpp/multi-files/main.cxx b/examples/libf3d/cpp/multi-files/main.cxx
index 71a91e419d..6b2471c297 100644
--- a/examples/libf3d/cpp/multi-files/main.cxx
+++ b/examples/libf3d/cpp/multi-files/main.cxx
@@ -33,12 +33,12 @@ int main(int argc, char** argv)
   f3d::window& win = eng.getWindow();
   win.render();
 
-  // Create a timer to stop interaction after one second
+  // Start interaction and stop it after one second
   f3d::interactor& inter = eng.getInteractor();
-  inter.createTimerCallBack(1000, [&inter]() { inter.stop(); });
+  inter.start(1, [&inter]() { inter.stop(); });
 
-  // Start interaction
-  inter.start();
+  // Actual call would look like this
+  // inter.start();
 
   return EXIT_SUCCESS;
 }
diff --git a/examples/libf3d/cpp/render-interact/main.cxx b/examples/libf3d/cpp/render-interact/main.cxx
index 7fc831b9e4..39b9c244c5 100644
--- a/examples/libf3d/cpp/render-interact/main.cxx
+++ b/examples/libf3d/cpp/render-interact/main.cxx
@@ -27,12 +27,12 @@ int main(int argc, char** argv)
   f3d::window& win = eng.getWindow();
   win.render();
 
-  // Create a timer to stop interaction after one second
+  // Start interaction and stop it after one second
   f3d::interactor& inter = eng.getInteractor();
-  inter.createTimerCallBack(1000, [&inter]() { inter.stop(); });
+  inter.start(1, [&inter]() { inter.stop(); });
 
-  // Start interaction
-  inter.start();
+  // Actual call would look like this
+  // inter.start();
 
   return EXIT_SUCCESS;
 }
diff --git a/examples/libf3d/cpp/use-options-string/main.cxx b/examples/libf3d/cpp/use-options-string/main.cxx
index 2cafb1e8e1..6169cda155 100644
--- a/examples/libf3d/cpp/use-options-string/main.cxx
+++ b/examples/libf3d/cpp/use-options-string/main.cxx
@@ -34,12 +34,12 @@ int main(int argc, char** argv)
   f3d::window& win = eng.getWindow();
   win.render();
 
-  // Create a timer to stop interaction after one second
+  // Start interaction and stop it after one second
   f3d::interactor& inter = eng.getInteractor();
-  inter.createTimerCallBack(1000, [&inter]() { inter.stop(); });
+  inter.start(1, [&inter]() { inter.stop(); });
 
-  // Start interaction
-  inter.start();
+  // Actual call would look like this
+  // inter.start();
 
   return EXIT_SUCCESS;
 }
diff --git a/examples/libf3d/cpp/use-options-struct/main.cxx b/examples/libf3d/cpp/use-options-struct/main.cxx
index 59381ac0cc..524f09e07e 100644
--- a/examples/libf3d/cpp/use-options-struct/main.cxx
+++ b/examples/libf3d/cpp/use-options-struct/main.cxx
@@ -34,12 +34,12 @@ int main(int argc, char** argv)
   f3d::window& win = eng.getWindow();
   win.render();
 
-  // Create a timer to stop interaction after one second
+  // Start interaction and stop it after one second
   f3d::interactor& inter = eng.getInteractor();
-  inter.createTimerCallBack(1000, [&inter]() { inter.stop(); });
+  inter.start(1, [&inter]() { inter.stop(); });
 
-  // Start interaction
-  inter.start();
+  // Actual call would look like this
+  // inter.start();
 
   return EXIT_SUCCESS;
 }
diff --git a/examples/libf3d/cpp/use-options-variant/main.cxx b/examples/libf3d/cpp/use-options-variant/main.cxx
index b1e704ae1b..531e8c5daf 100644
--- a/examples/libf3d/cpp/use-options-variant/main.cxx
+++ b/examples/libf3d/cpp/use-options-variant/main.cxx
@@ -32,12 +32,12 @@ int main(int argc, char** argv)
   f3d::window& win = eng.getWindow();
   win.render();
 
-  // Create a timer to stop interaction after one second
+  // Start interaction and stop it after one second
   f3d::interactor& inter = eng.getInteractor();
-  inter.createTimerCallBack(1000, [&inter]() { inter.stop(); });
+  inter.start(1, [&inter]() { inter.stop(); });
 
-  // Start interaction
-  inter.start();
+  // Actual call would look like this
+  // inter.start();
 
   return EXIT_SUCCESS;
 }
diff --git a/library/options.json b/library/options.json
index b977760922..7f3f57c8a4 100644
--- a/library/options.json
+++ b/library/options.json
@@ -16,10 +16,6 @@
       "speed_factor": {
         "type": "ratio",
         "default_value": "1.0"
-      },
-      "frame_rate": {
-        "type": "double",
-        "default_value": "60.0"
       }
     },
     "camera": {
diff --git a/library/private/animationManager.h b/library/private/animationManager.h
index d8b75ee291..6552f00176 100644
--- a/library/private/animationManager.h
+++ b/library/private/animationManager.h
@@ -87,6 +87,17 @@ class animationManager
     return Playing;
   }
 
+  /**
+   * Set the animation in delta time in seconds
+   */
+  void SetDeltaTime(double deltaTime);
+
+  /**
+   * Advance animationTime of DeltaTime and call loadAtTime accordingly
+   * Do nothing if IsPlaying is false
+   */
+  void Tick();
+
   /**
    * Load animation at provided time value
    */
@@ -101,11 +112,6 @@ class animationManager
   std::pair<double, double> GetTimeRange();
 
 private:
-  /**
-   * Called by an internal timer to advance one animation tick
-   */
-  void Tick();
-
   const options& Options;
   window_impl& Window;
   vtkImporter* Importer = nullptr;
@@ -114,8 +120,8 @@ class animationManager
   double TimeRange[2] = { 0.0, 0.0 };
   bool Playing = false;
   bool HasAnimation = false;
-  unsigned long CallBackId = 0;
   double CurrentTime = 0;
+  double DeltaTime = 0;
   bool CurrentTimeSet = false;
   int AnimationIndex = 0;
   int AvailAnimations = -1;
diff --git a/library/private/interactor_impl.h b/library/private/interactor_impl.h
index a4d65b42e7..ec901eba1b 100644
--- a/library/private/interactor_impl.h
+++ b/library/private/interactor_impl.h
@@ -56,9 +56,6 @@ class interactor_impl : public interactor
   std::pair<std::string, std::string> getBindingDocumentation(
     const interaction_bind_t& bind) const override;
 
-  unsigned long createTimerCallBack(double time, std::function<void()> callBack) override;
-  void removeTimerCallBack(unsigned long id) override;
-
   void toggleAnimation() override;
   void startAnimation() override;
   void stopAnimation() override;
@@ -67,11 +64,13 @@ class interactor_impl : public interactor
   void enableCameraMovement() override;
   void disableCameraMovement() override;
 
-  bool playInteraction(const std::string& file) override;
+  bool playInteraction(
+    const std::string& file, double deltaTime, std::function<void()> userCallBack) override;
   bool recordInteraction(const std::string& file) override;
 
-  void start() override;
+  void start(double deltaTime, std::function<void()> userCallBack) override;
   void stop() override;
+  void requestRender() override;
   ///@}
 
   /**
@@ -101,6 +100,12 @@ class interactor_impl : public interactor
    */
   void UpdateRendererAfterInteraction();
 
+  /**
+   * Event loop being called automatically once the interactor is started
+   * First call the EventLoopUserCallBack, then call render if requested.
+   */
+  void EventLoop();
+
   /**
    * An exception that can be thrown by certain command callbacks
    * when the arguments of the callback are incorrect and expected
diff --git a/library/private/window_impl.h b/library/private/window_impl.h
index c13fcd1555..872d2ffac6 100644
--- a/library/private/window_impl.h
+++ b/library/private/window_impl.h
@@ -116,6 +116,12 @@ class window_impl : public window
    */
   void SetInteractor(interactor_impl* interactor);
 
+  /**
+   * Trigger a render only of the UI
+   * Does nothing if F3D_MODULE_UI is OFF
+   */
+  void RenderUIOnly();
+
 private:
   class internals;
   std::unique_ptr<internals> Internals;
diff --git a/library/public/interactor.h b/library/public/interactor.h
index ea4d4ae841..d62d5e8ea2 100644
--- a/library/public/interactor.h
+++ b/library/public/interactor.h
@@ -202,17 +202,6 @@ class F3D_EXPORT interactor
     const interaction_bind_t& bind) const = 0;
   ///@}
 
-  /**
-   * Use this method to create your own timer callback. You callback will be called once every time
-   * ms. Return an id to use in removeTimeCallBack.
-   */
-  virtual unsigned long createTimerCallBack(double time, std::function<void()> callBack) = 0;
-
-  /**
-   * Remove a previously created timer callback using the id.
-   */
-  virtual void removeTimerCallBack(unsigned long id) = 0;
-
   ///@{ @name Animation
   /**
    * Control the animation.
@@ -234,7 +223,8 @@ class F3D_EXPORT interactor
   /**
    * Play a VTK interaction file.
    */
-  virtual bool playInteraction(const std::string& file) = 0;
+  virtual bool playInteraction(const std::string& file, double deltaTime = 1.0 / 30,
+    std::function<void()> userCallBack = nullptr) = 0;
 
   /**
    * Start interaction and record it all in a VTK interaction file.
@@ -242,16 +232,23 @@ class F3D_EXPORT interactor
   virtual bool recordInteraction(const std::string& file) = 0;
 
   /**
-   * Start the interactor.
-   * Make sure the window is initialized first, by calling `window.render()`
+   * Start the interactor event loop.
+   * The event loop will be triggered every deltaTime in seconds, and userCallBack will be called at
+   * the start of the event loop
    */
-  virtual void start() = 0;
+  virtual void start(double deltaTime = 1.0 / 30, std::function<void()> userCallBack = nullptr) = 0;
 
   /**
    * Stop the interactor.
    */
   virtual void stop() = 0;
 
+  /**
+   * Request a render to be done on the next event loop
+   * Safe to call in a multithreaded environment
+   */
+  virtual void requestRender() = 0;
+
   /**
    * An exception that can be thrown by the interactor
    * when adding something that already exists internally
diff --git a/library/src/animationManager.cxx b/library/src/animationManager.cxx
index e2d44e396a..0909a6b6ce 100644
--- a/library/src/animationManager.cxx
+++ b/library/src/animationManager.cxx
@@ -38,6 +38,12 @@ void animationManager::SetInteractor(interactor_impl* interactor)
   this->Interactor = interactor;
 }
 
+//----------------------------------------------------------------------------
+void animationManager::SetDeltaTime(double deltaTime)
+{
+  this->DeltaTime = deltaTime;
+}
+
 //----------------------------------------------------------------------------
 void animationManager::Initialize()
 {
@@ -113,12 +119,10 @@ void animationManager::Initialize()
       int nbTimeSteps;
       vtkNew<vtkDoubleArray> timeSteps;
 
-      // Discard timesteps, F3D only cares about real elapsed time using time range
-      // Specifying the frame rate in the next call is not needed after VTK 9.2.20230603 :
+      // Discard timesteps, F3D only cares about elapsed time using time range and deltaTime
+      // Specifying a frame rate (60) in the next call is not needed after VTK 9.2.20230603 :
       // VTK_VERSION_CHECK(9, 2, 20230603)
-      double frameRate = this->Options.scene.animation.frame_rate;
-      this->Importer->GetTemporalInformation(
-        animIndex, frameRate, nbTimeSteps, timeRange, timeSteps);
+      this->Importer->GetTemporalInformation(animIndex, 60, nbTimeSteps, timeRange, timeSteps);
 
       // Accumulate time ranges
       this->TimeRange[0] = std::min(timeRange[0], this->TimeRange[0]);
@@ -171,10 +175,6 @@ void animationManager::ToggleAnimation()
   {
     this->Playing = !this->Playing;
 
-    if (this->CallBackId != 0)
-    {
-      this->Interactor->removeTimerCallBack(this->CallBackId);
-    }
     if (this->Playing)
     {
       // Initialize time if not already
@@ -186,10 +186,6 @@ void animationManager::ToggleAnimation()
 
       // Always reset previous tick when starting the animation
       this->PreviousTick = std::chrono::steady_clock::now();
-
-      double frameRate = this->Options.scene.animation.frame_rate;
-      this->CallBackId =
-        this->Interactor->createTimerCallBack(1000.0 / frameRate, [this]() { this->Tick(); });
     }
 
     if (this->Playing && this->Options.scene.camera.index.has_value())
@@ -206,37 +202,21 @@ void animationManager::ToggleAnimation()
 //----------------------------------------------------------------------------
 void animationManager::Tick()
 {
-  assert(this->Interactor);
-
-  // Compute time since previous tick
-  std::chrono::steady_clock::time_point tick = std::chrono::steady_clock::now();
-  auto timeInMS =
-    std::chrono::duration_cast<std::chrono::milliseconds>(tick - this->PreviousTick).count();
-  this->PreviousTick = tick;
-
-  // Convert to a usable time in seconds
-  double elapsedTime = static_cast<double>(timeInMS) / 1000.0;
-  double animationSpeedFactor = this->Options.scene.animation.speed_factor;
-
-  // elapsedTime can be negative
-  elapsedTime *= animationSpeedFactor;
-  this->CurrentTime += elapsedTime;
-
-  // Modulo computation, compute CurrentTime in the time range.
-  if (this->CurrentTime < this->TimeRange[0] || this->CurrentTime > this->TimeRange[1])
+  if (this->Playing)
   {
-    auto modulo = [](double val, double mod)
+    this->CurrentTime += this->DeltaTime * this->Options.scene.animation.speed_factor;
+
+    // Modulo computation, compute CurrentTime in the time range.
+    if (this->CurrentTime < this->TimeRange[0] || this->CurrentTime > this->TimeRange[1])
     {
-      const double remainder = fmod(val, mod);
-      return remainder < 0 ? remainder + mod : remainder;
-    };
-    this->CurrentTime = this->TimeRange[0] +
-      modulo(this->CurrentTime - this->TimeRange[0], this->TimeRange[1] - this->TimeRange[0]);
-  }
+      this->CurrentTime = this->TimeRange[0] +
+        std::fmod(this->CurrentTime - this->TimeRange[0], this->TimeRange[1] - this->TimeRange[0]);
+    }
 
-  if (this->LoadAtTime(this->CurrentTime))
-  {
-    this->Window.render();
+    if (this->LoadAtTime(this->CurrentTime))
+    {
+      this->Window.render();
+    }
   }
 }
 
diff --git a/library/src/interactor_impl.cxx b/library/src/interactor_impl.cxx
index b7ce8947e3..7fdf8218d6 100644
--- a/library/src/interactor_impl.cxx
+++ b/library/src/interactor_impl.cxx
@@ -9,14 +9,13 @@
 #include "vtkF3DConsoleOutputWindow.h"
 #include "vtkF3DInteractorEventRecorder.h"
 #include "vtkF3DInteractorStyle.h"
-#include "vtkF3DRenderPass.h"
 #include "vtkF3DRenderer.h"
+#include "vtkF3DUIActor.h"
 #include "vtkF3DUIObserver.h"
 
 #include <vtkCallbackCommand.h>
 #include <vtkCellPicker.h>
 #include <vtkGenericRenderWindowInteractor.h>
-#include <vtkInformation.h>
 #include <vtkMath.h>
 #include <vtkMatrix3x3.h>
 #include <vtkNew.h>
@@ -235,7 +234,7 @@ class interactor_impl::internals
       self->Options.ui.console = (event == vtkF3DConsoleOutputWindow::ShowEvent);
     }
 
-    self->NeedFullRender = true;
+    self->RenderRequested = true;
   }
 
   //----------------------------------------------------------------------------
@@ -363,49 +362,6 @@ class interactor_impl::internals
     self->Style->OnMiddleButtonUp();
   }
 
-  //----------------------------------------------------------------------------
-  void StartEventLoop()
-  {
-#if F3D_MODULE_UI
-    // create event loop to refresh UI and trigger full render if needed
-    // this may be rework to a generalize event loop, see https://github.com/f3d-app/f3d/issues/1534
-    this->Interactor.createTimerCallBack(30,
-      [&]()
-      {
-        vtkRenderWindow* renWin = this->Window.GetRenderWindow();
-        vtkF3DRenderer* ren =
-          vtkF3DRenderer::SafeDownCast(renWin->GetRenderers()->GetFirstRenderer());
-        vtkInformation* info = ren->GetInformation();
-
-        if (this->NeedFullRender)
-        {
-          this->NeedFullRender = false;
-          this->Window.render();
-        }
-        else
-        {
-          info->Set(vtkF3DRenderPass::RENDER_UI_ONLY(), 1);
-          renWin->Render();
-          info->Remove(vtkF3DRenderPass::RENDER_UI_ONLY());
-        }
-      });
-#endif
-  }
-
-  //----------------------------------------------------------------------------
-  void StartInteractor()
-  {
-    this->VTKInteractor->Start();
-  }
-
-  //----------------------------------------------------------------------------
-  void StopInteractor()
-  {
-    this->VTKInteractor->RemoveObservers(vtkCommand::TimerEvent);
-    this->VTKInteractor->ExitCallback();
-  }
-
-  //----------------------------------------------------------------------------
   /**
    * Run a camera transition animation based on a camera state interpolation function.
    * The provided function will be called with an interpolation parameter
@@ -500,6 +456,69 @@ class interactor_impl::internals
     this->Window.render();
   }
 
+  //----------------------------------------------------------------------------
+  void StartEventLoop(double deltaTime, std::function<void()> userCallBack)
+  {
+    // Trigger a render to ensure Window is ready to be configured
+    this->Window.render();
+
+    // Copy user callback
+    this->EventLoopUserCallBack = std::move(userCallBack);
+
+    // Configure UI delta time
+    vtkRenderWindow* renWin = this->Window.GetRenderWindow();
+    vtkF3DRenderer* ren = vtkF3DRenderer::SafeDownCast(renWin->GetRenderers()->GetFirstRenderer());
+    ren->SetUIDeltaTime(deltaTime);
+
+    // Configure animation delta time
+    this->AnimationManager->SetDeltaTime(deltaTime);
+
+    // Create the timer
+    this->EventLoopTimerId = this->VTKInteractor->CreateRepeatingTimer(deltaTime * 1000);
+
+    // Create the callback and add an observer
+    vtkNew<vtkCallbackCommand> timerCallBack;
+    timerCallBack->SetCallback(
+      [](vtkObject*, unsigned long, void* clientData, void*)
+      {
+        internals* that = static_cast<internals*>(clientData);
+        that->EventLoop();
+      });
+    this->EventLoopObserverId =
+      this->VTKInteractor->AddObserver(vtkCommand::TimerEvent, timerCallBack);
+    timerCallBack->SetClientData(this);
+  }
+
+  //----------------------------------------------------------------------------
+  void StopEventLoop()
+  {
+    this->VTKInteractor->RemoveObserver(this->EventLoopObserverId);
+    this->VTKInteractor->DestroyTimer(this->EventLoopTimerId);
+    this->EventLoopObserverId = -1;
+    this->EventLoopTimerId = 0;
+  }
+
+  //----------------------------------------------------------------------------
+  void EventLoop()
+  {
+    if (this->EventLoopUserCallBack)
+    {
+      this->EventLoopUserCallBack();
+    }
+
+    this->AnimationManager->Tick();
+
+    if (this->RenderRequested)
+    {
+      this->Window.render();
+      this->RenderRequested = false;
+    }
+    else
+    {
+      this->Window.RenderUIOnly();
+    }
+  }
+
   //----------------------------------------------------------------------------
   options& Options;
   window_impl& Window;
@@ -527,7 +546,10 @@ class interactor_impl::internals
   int DragDistanceTol = 3;      /* px */
   int TransitionDuration = 100; /* ms */
 
-  bool NeedFullRender = false;
+  std::function<void()> EventLoopUserCallBack = nullptr;
+  unsigned long EventLoopTimerId = 0;
+  int EventLoopObserverId = -1;
+  std::atomic<bool> RenderRequested = false;
 };
 
 //----------------------------------------------------------------------------
@@ -683,8 +705,7 @@ interactor& interactor_impl::initCommands()
       this->Internals->Window.PrintColoringDescription(log::VerboseLevel::DEBUG);
     });
 
-  this->addCommand(
-    "stop_interactor", [&](const std::vector<std::string>&) { this->Internals->StopInteractor(); });
+  this->addCommand("stop_interactor", [&](const std::vector<std::string>&) { this->stop(); });
 
   this->addCommand("reset_camera",
     [&](const std::vector<std::string>&) { this->Internals->Window.getCamera().resetToDefault(); });
@@ -1031,36 +1052,6 @@ std::pair<std::string, std::string> interactor_impl::getBindingDocumentation(
   return docFunc ? docFunc() : std::make_pair(std::string(), std::string());
 }
 
-//----------------------------------------------------------------------------
-void interactor_impl::removeTimerCallBack(unsigned long id)
-{
-  this->Internals->VTKInteractor->RemoveObserver(id);
-  this->Internals->VTKInteractor->DestroyTimer(this->Internals->TimerCallBacks[id].first);
-}
-
-//----------------------------------------------------------------------------
-unsigned long interactor_impl::createTimerCallBack(double time, std::function<void()> callBack)
-{
-  // Create the timer
-  int timerId = this->Internals->VTKInteractor->CreateRepeatingTimer(time);
-
-  // Create the callback and get the observer id
-  vtkNew<vtkCallbackCommand> timerCallBack;
-  timerCallBack->SetCallback(
-    [](vtkObject*, unsigned long, void* clientData, void*)
-    {
-      std::function<void()>* callBackPtr = static_cast<std::function<void()>*>(clientData);
-      (*callBackPtr)();
-    });
-  unsigned long id =
-    this->Internals->VTKInteractor->AddObserver(vtkCommand::TimerEvent, timerCallBack);
-
-  // Store the user callback and set it as client data
-  this->Internals->TimerCallBacks[id] = std::make_pair(timerId, callBack);
-  timerCallBack->SetClientData(&this->Internals->TimerCallBacks[id].second);
-  return id;
-}
-
 //----------------------------------------------------------------------------
 void interactor_impl::toggleAnimation()
 {
@@ -1102,7 +1093,8 @@ void interactor_impl::disableCameraMovement()
 }
 
 //----------------------------------------------------------------------------
-bool interactor_impl::playInteraction(const std::string& file)
+bool interactor_impl::playInteraction(
+  const std::string& file, double loopTime, std::function<void()> userCallBack)
 {
   if (!vtksys::SystemTools::FileExists(file))
   {
@@ -1115,11 +1107,13 @@ bool interactor_impl::playInteraction(const std::string& file)
     this->Internals->Recorder->Off();
     this->Internals->Recorder->Clear();
 
-    this->Internals->StartEventLoop();
+    this->Internals->StartEventLoop(loopTime, std::move(userCallBack));
 
     std::string cleanFile = vtksys::SystemTools::CollapseFullPath(file);
     this->Internals->Recorder->SetFileName(cleanFile.c_str());
     this->Internals->Recorder->Play();
+
+    this->Internals->StopEventLoop();
   }
 
   // Recorder can stop the interactor, make sure it is still running
@@ -1171,16 +1165,23 @@ bool interactor_impl::recordInteraction(const std::string& file)
 }
 
 //----------------------------------------------------------------------------
-void interactor_impl::start()
+void interactor_impl::start(double loopTime, std::function<void()> userCallBack)
 {
-  this->Internals->StartEventLoop();
-  this->Internals->StartInteractor();
+  this->Internals->StartEventLoop(loopTime, std::move(userCallBack));
+  this->Internals->VTKInteractor->Start();
 }
 
 //----------------------------------------------------------------------------
 void interactor_impl::stop()
 {
-  this->Internals->StopInteractor();
+  this->Internals->StopEventLoop();
+  this->Internals->VTKInteractor->ExitCallback();
+}
+
+//----------------------------------------------------------------------------
+void interactor_impl::requestRender()
+{
+  this->Internals->RenderRequested = true;
 }
 
 //----------------------------------------------------------------------------
diff --git a/library/src/window_impl.cxx b/library/src/window_impl.cxx
index 567bbec550..858921ea19 100644
--- a/library/src/window_impl.cxx
+++ b/library/src/window_impl.cxx
@@ -12,8 +12,10 @@
 #include "vtkF3DRenderer.h"
 
 #include <vtkCamera.h>
+#include <vtkF3DRenderPass.h>
 #include <vtkImageData.h>
 #include <vtkImageExport.h>
+#include <vtkInformation.h>
 #include <vtkPNGReader.h>
 #include <vtkPointGaussianMapper.h>
 #include <vtkRendererCollection.h>
@@ -556,4 +558,19 @@ void window_impl::SetInteractor(interactor_impl* interactor)
 {
   this->Internals->Interactor = interactor;
 }
+
+//----------------------------------------------------------------------------
+void window_impl::RenderUIOnly()
+{
+#if F3D_MODULE_UI
+  // Do only a partial render of the UI
+  vtkRenderWindow* renWin = this->Internals->RenWin;
+  vtkRenderer* ren = renWin->GetRenderers()->GetFirstRenderer();
+  vtkInformation* info = ren->GetInformation();
+
+  info->Set(vtkF3DRenderPass::RENDER_UI_ONLY(), 1);
+  renWin->Render();
+  info->Remove(vtkF3DRenderPass::RENDER_UI_ONLY());
+#endif
+}
 };
diff --git a/library/testing/CMakeLists.txt b/library/testing/CMakeLists.txt
index 3569c9f626..9dfc7e9a33 100644
--- a/library/testing/CMakeLists.txt
+++ b/library/testing/CMakeLists.txt
@@ -15,7 +15,6 @@ list(APPEND libf3dSDKTests_list
      TestSDKMultiColoring.cxx
      TestSDKOptions.cxx
      TestSDKOptionsIO.cxx
-     TestSDKRenderAndInteract.cxx
      TestSDKRenderFinalShader.cxx
      TestSDKUtils.cxx
      TestSDKWindowAuto.cxx
@@ -42,6 +41,14 @@ if(F3D_MODULE_UI)
   endif()
 endif()
 
+# These tests needs https://gitlab.kitware.com/vtk/vtk/-/merge_requests/10155
+if(VTK_VERSION VERSION_GREATER_EQUAL 9.2.20230426)
+  list(APPEND libf3dSDKTests_list
+    TestSDKRenderAndInteract.cxx
+    TestSDKStartInteractor.cxx
+    )
+endif()
+
 # Invalid scene codepath needs https://gitlab.kitware.com/vtk/vtk/-/merge_requests/11287
 # Merge with TestSDKScene.cxx when VTK 9.4.0 is required.
 if(VTK_VERSION VERSION_GREATER_EQUAL 9.3.20240707)
diff --git a/library/testing/TestSDKRenderAndInteract.cxx b/library/testing/TestSDKRenderAndInteract.cxx
index eea0d7dff8..b09681863f 100644
--- a/library/testing/TestSDKRenderAndInteract.cxx
+++ b/library/testing/TestSDKRenderAndInteract.cxx
@@ -18,8 +18,7 @@ int TestSDKRenderAndInteract(int argc, char* argv[])
   win.render();
 
   f3d::interactor& inter = eng.getInteractor();
-  inter.createTimerCallBack(1000, [&inter]() { inter.stop(); });
-  inter.start();
+  inter.start(1, [&inter]() { inter.stop(); });
 
   return EXIT_SUCCESS;
 }
diff --git a/library/testing/TestSDKStartInteractor.cxx b/library/testing/TestSDKStartInteractor.cxx
new file mode 100644
index 0000000000..6c6afb4bb2
--- /dev/null
+++ b/library/testing/TestSDKStartInteractor.cxx
@@ -0,0 +1,14 @@
+#include <engine.h>
+#include <interactor.h>
+#include <scene.h>
+
+int TestSDKStartInteractor(int argc, char* argv[])
+{
+  // Using an onscreen window to mimic standard usage
+  f3d::engine eng = f3d::engine::create();
+  f3d::scene& sce = eng.getScene();
+  sce.add(std::string(argv[1]) + "/data/cow.vtp");
+  f3d::interactor& inter = eng.getInteractor();
+  inter.start(1, [&inter]() { inter.stop(); });
+  return EXIT_SUCCESS;
+}
diff --git a/python/F3DPythonBindings.cxx b/python/F3DPythonBindings.cxx
index 4288fd8e29..24b5f96dd6 100644
--- a/python/F3DPythonBindings.cxx
+++ b/python/F3DPythonBindings.cxx
@@ -237,8 +237,10 @@ PYBIND11_MODULE(pyf3d, module)
       "Disable the camera interaction")
     .def("play_interaction", &f3d::interactor::playInteraction, "Play an interaction file")
     .def("record_interaction", &f3d::interactor::recordInteraction, "Record an interaction file")
-    .def("start", &f3d::interactor::start, "Start the interactor")
-    .def("stop", &f3d::interactor::start, "Stop the interactor")
+    .def("start", &f3d::interactor::start, "Start the interactor and the event loop")
+    .def("stop", &f3d::interactor::stop, "Stop the interactor and the event loop")
+    .def(
+      "request_render", &f3d::interactor::requestRender, "Request a render on the next event loop")
     .def("init_commands", &f3d::interactor::initCommands,
       "Remove all commands and add all default command callbacks")
     .def("add_command", &f3d::interactor::addCommand, "Add a command")
diff --git a/python/testing/CMakeLists.txt b/python/testing/CMakeLists.txt
index 9d1562848d..04b5b8ddb5 100644
--- a/python/testing/CMakeLists.txt
+++ b/python/testing/CMakeLists.txt
@@ -23,6 +23,12 @@ list(APPEND pyf3dTestsNoRender_list
      test_utils.py
     )
 
+# These tests needs https://gitlab.kitware.com/vtk/vtk/-/merge_requests/10155
+if(VTK_VERSION VERSION_GREATER_EQUAL 9.2.20230426)
+list(APPEND pyf3dTests_list
+     test_interactor_start.py)
+endif ()
+
 # Add all the ADD_TEST for each test
 foreach(test ${pyf3dTests_list})
   get_filename_component (TName TestPython_${test} NAME_WE)
diff --git a/python/testing/test_interactor.py b/python/testing/test_interactor.py
index 0f1c6c95fe..ba47314171 100644
--- a/python/testing/test_interactor.py
+++ b/python/testing/test_interactor.py
@@ -1,11 +1,10 @@
 import os
-
 import pytest
 
 import f3d
 
 
-def callback_fn(args):
+def print_fn(args):
     print(args)
 
 
@@ -24,7 +23,7 @@ def test_command(capfd):
     assert len(inter.get_command_actions()) == 0
 
     # Check a command can be triggered
-    inter.add_command("my_cmd", callback_fn)
+    inter.add_command("my_cmd", print_fn)
     inter.trigger_command("my_cmd arg1 arg2")
     inter.remove_command("my_cmd")
     out, err = capfd.readouterr()
diff --git a/python/testing/test_interactor_start.py b/python/testing/test_interactor_start.py
new file mode 100644
index 0000000000..e17d167f6e
--- /dev/null
+++ b/python/testing/test_interactor_start.py
@@ -0,0 +1,21 @@
+from functools import partial
+import pytest
+
+import f3d
+
+
+def stop_fn(inter):
+    inter.stop()
+
+
+def test_start_stop():
+    engine = f3d.Engine.create(True)
+    inter = engine.interactor
+    inter.start(1 / 30, partial(stop_fn, inter))
+
+
+def test_request_render(capfd):
+    engine = f3d.Engine.create(True)
+    inter = engine.interactor
+    inter.request_render()
+    inter.start(1 / 30, partial(stop_fn, inter))
diff --git a/python/testing/test_options.py b/python/testing/test_options.py
index bae9b6d4d5..ebb326ce05 100644
--- a/python/testing/test_options.py
+++ b/python/testing/test_options.py
@@ -12,7 +12,7 @@ def test_closest_option():
 def test_setitem():
     options = f3d.Options()
     options["interactor.axis"] = False
-    options["scene.animation.frame_rate"] = 33.33
+    options["render.background.blur_coc"] = 33.33
     options["scene.animation.speed_factor"] = 3.3
     options["render.raytracing.samples"] = 5
     options["render.grid.color"] = [1.0, 1.0, 1.0]
@@ -24,7 +24,7 @@ def test_getitem():
     options = engine.options
 
     assert options["interactor.axis"] is False
-    assert options["scene.animation.frame_rate"] == 60.0
+    assert options["render.background.blur_coc"] == 20.0
     assert options["scene.animation.speed_factor"] == 1.0
     assert options["render.raytracing.samples"] == 5
     assert options["render.grid.color"] == [0.0, 0.0, 0.0]
diff --git a/testing/baselines/TestInteractionAnimation.png b/testing/baselines/TestInteractionAnimation.png
new file mode 100644
index 0000000000..f70fde2bbc
--- /dev/null
+++ b/testing/baselines/TestInteractionAnimation.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:38b93b6d7ab8357596c6399e3777e8a66ca893eadae324d47b256661ab44e58d
+size 2161
diff --git a/testing/baselines/TestInteractionAnimationCameraMovement.png b/testing/baselines/TestInteractionAnimationCameraMovement.png
index fd26e2900e..947bc6c283 100644
--- a/testing/baselines/TestInteractionAnimationCameraMovement.png
+++ b/testing/baselines/TestInteractionAnimationCameraMovement.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:0d4f5f288bd40f0ec5fa1bfe193df0d9933f215d2acf1dc840dfd43d4acbe004
-size 2561
+oid sha256:d1db8396e53c8ef14821f663d18cb62d367673b16d9ab6a5be158756f3061022
+size 2569
diff --git a/testing/baselines/TestInteractionAnimationFast.png b/testing/baselines/TestInteractionAnimationFast.png
new file mode 100644
index 0000000000..22b9872f8f
--- /dev/null
+++ b/testing/baselines/TestInteractionAnimationFast.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:613f9a3b45ad369bf1a67e6a113fc195a5f77a2d794078599185e18f8172f29b
+size 2310
diff --git a/testing/baselines/TestInteractionAnimationFrameRate.png b/testing/baselines/TestInteractionAnimationFrameRate.png
new file mode 100644
index 0000000000..13a8c463d6
--- /dev/null
+++ b/testing/baselines/TestInteractionAnimationFrameRate.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9ee4b1b3a821bd128d2fe9acd62d55386db3b964abd65c345db844376a916152
+size 2262
diff --git a/testing/baselines/TestInteractionAnimationSlow.png b/testing/baselines/TestInteractionAnimationSlow.png
index 0f271a31a3..ab7535f278 100644
--- a/testing/baselines/TestInteractionAnimationSlow.png
+++ b/testing/baselines/TestInteractionAnimationSlow.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:77c9cc7665b6b9ce5e30ec83ee5c5fd13a1cd4087941458afc1413b3537e77ac
-size 4780
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+size 2256
diff --git a/testing/recordings/TestInteractionAnimation.log b/testing/recordings/TestInteractionAnimation.log
new file mode 100644
index 0000000000..1b3d7bd15a
--- /dev/null
+++ b/testing/recordings/TestInteractionAnimation.log
@@ -0,0 +1,80 @@
+# StreamVersion 1.2
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diff --git a/testing/recordings/TestInteractionAnimationFast.log b/testing/recordings/TestInteractionAnimationFast.log
index 61085e50d6..1b3d7bd15a 100644
--- a/testing/recordings/TestInteractionAnimationFast.log
+++ b/testing/recordings/TestInteractionAnimationFast.log
@@ -1,13 +1,80 @@
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diff --git a/testing/recordings/TestInteractionAnimationFrameRate.log b/testing/recordings/TestInteractionAnimationFrameRate.log
index babe9704da..1b3d7bd15a 100644
--- a/testing/recordings/TestInteractionAnimationFrameRate.log
+++ b/testing/recordings/TestInteractionAnimationFrameRate.log
@@ -1,40 +1,80 @@
 # StreamVersion 1.2
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diff --git a/testing/recordings/TestInteractionAnimationSlow.log b/testing/recordings/TestInteractionAnimationSlow.log
index babe9704da..1b3d7bd15a 100644
--- a/testing/recordings/TestInteractionAnimationSlow.log
+++ b/testing/recordings/TestInteractionAnimationSlow.log
@@ -1,40 +1,80 @@
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diff --git a/vtkext/private/module/vtkF3DImguiActor.cxx b/vtkext/private/module/vtkF3DImguiActor.cxx
index 7963863d29..676fa95f90 100644
--- a/vtkext/private/module/vtkF3DImguiActor.cxx
+++ b/vtkext/private/module/vtkF3DImguiActor.cxx
@@ -453,3 +453,10 @@ void vtkF3DImguiActor::EndFrame(vtkOpenGLRenderWindow* renWin)
   ImGui::Render();
   this->Pimpl->RenderDrawData(renWin, ImGui::GetDrawData());
 }
+
+//----------------------------------------------------------------------------
+void vtkF3DImguiActor::SetDeltaTime(double time)
+{
+  ImGuiIO& io = ImGui::GetIO();
+  io.DeltaTime = time;
+}
diff --git a/vtkext/private/module/vtkF3DImguiActor.h b/vtkext/private/module/vtkF3DImguiActor.h
index efefc5fceb..bbe65952e0 100644
--- a/vtkext/private/module/vtkF3DImguiActor.h
+++ b/vtkext/private/module/vtkF3DImguiActor.h
@@ -31,6 +31,11 @@ class vtkF3DImguiActor : public vtkF3DUIActor
    */
   void ReleaseGraphicsResources(vtkWindow* w) override;
 
+  /**
+   * Set imgui::DeltaTime, with time in seconds
+   */
+  void SetDeltaTime(double time) override;
+
 protected:
   vtkF3DImguiActor();
   ~vtkF3DImguiActor() override;
diff --git a/vtkext/private/module/vtkF3DRenderer.cxx b/vtkext/private/module/vtkF3DRenderer.cxx
index 41f0780827..d0f08618bf 100644
--- a/vtkext/private/module/vtkF3DRenderer.cxx
+++ b/vtkext/private/module/vtkF3DRenderer.cxx
@@ -2621,3 +2621,9 @@ void vtkF3DRenderer::SetCheatSheetConfigured(bool flag)
 {
   this->CheatSheetConfigured = flag;
 }
+
+//----------------------------------------------------------------------------
+void vtkF3DRenderer::SetUIDeltaTime(double time)
+{
+  this->UIActor->SetDeltaTime(time);
+}
diff --git a/vtkext/private/module/vtkF3DRenderer.h b/vtkext/private/module/vtkF3DRenderer.h
index 4a32f79e1a..6ed4b7d2f7 100644
--- a/vtkext/private/module/vtkF3DRenderer.h
+++ b/vtkext/private/module/vtkF3DRenderer.h
@@ -371,6 +371,11 @@ class vtkF3DRenderer : public vtkOpenGLRenderer
    */
   void SetCheatSheetConfigured(bool flag);
 
+  /**
+   * Set the UI delta time (time between frame being rendered) in seconds
+   */
+  void SetUIDeltaTime(double time);
+
 private:
   vtkF3DRenderer();
   ~vtkF3DRenderer() override;
diff --git a/vtkext/private/module/vtkF3DUIActor.h b/vtkext/private/module/vtkF3DUIActor.h
index eb05731fcc..a8ef79a1c5 100644
--- a/vtkext/private/module/vtkF3DUIActor.h
+++ b/vtkext/private/module/vtkF3DUIActor.h
@@ -91,6 +91,11 @@ class vtkF3DUIActor : public vtkProp
    */
   int RenderOverlay(vtkViewport* vp) override;
 
+  /**
+   * Set the delta time (time between UI frames) in seconds
+   */
+  virtual void SetDeltaTime(double) {}
+
 protected:
   vtkF3DUIActor();
   ~vtkF3DUIActor() override;