diff --git a/src/experimental/platform/ux/imgui_widgets.cc b/src/experimental/platform/ux/imgui_widgets.cc
index 30115dfd..3698addb 100644
--- a/src/experimental/platform/ux/imgui_widgets.cc
+++ b/src/experimental/platform/ux/imgui_widgets.cc
@@ -343,6 +343,14 @@ bool ImGui_Slider(const char* name, mjtNum* value, mjtNum min, mjtNum max) {
   return res;
 }
 
+bool ImGui_SliderLog(const char* name, mjtNum* value, mjtNum min, mjtNum max) {
+  constexpr ImGuiDataType type = sizeof(mjtNum) == sizeof(double)
+                                     ? ImGuiDataType_Double
+                                     : ImGuiDataType_Float;
+  return ImGui::SliderScalar(name, type, value, &min, &max, "%.3g",
+                             ImGuiSliderFlags_Logarithmic);
+}
+
 bool ImGui_ResetButton(const char* id, const char* icon,
                        const char* tooltip) {
   const float size = ImGui::GetFrameHeight();
diff --git a/src/experimental/platform/ux/imgui_widgets.h b/src/experimental/platform/ux/imgui_widgets.h
index a13ed207..ed398308 100644
--- a/src/experimental/platform/ux/imgui_widgets.h
+++ b/src/experimental/platform/ux/imgui_widgets.h
@@ -476,6 +476,10 @@ void ImGui_EndHSplit(bool open);
 // ImGui Slider that supports both float and double types.
 bool ImGui_Slider(const char* name, mjtNum* value, mjtNum min, mjtNum max);
 
+// Logarithmic slider; the geometric mean of min and max sits mid-slider.
+// Ctrl+Click values typed by the user may exceed [min, max].
+bool ImGui_SliderLog(const char* name, mjtNum* value, mjtNum min, mjtNum max);
+
 // Small right-aligned reset button on the current line; returns true when
 // clicked. Use after a widget to give it a visible reset affordance.
 bool ImGui_ResetButton(const char* id, const char* icon = ICON_FA_UNDO,
diff --git a/src/experimental/platform/ux/object_launcher_plugin.cc b/src/experimental/platform/ux/object_launcher_plugin.cc
index e8bb4d7f..5bb51253 100644
--- a/src/experimental/platform/ux/object_launcher_plugin.cc
+++ b/src/experimental/platform/ux/object_launcher_plugin.cc
@@ -33,15 +33,26 @@ class ObjectLauncher {
   ObjectLauncher() : rng_(std::random_device{}()) {}
 
   void UpdateGui() {
-    using platform::ImGui_Input;
+    using platform::ImGui_ResetButton;
+    using platform::ImGui_SliderLog;
 
-    ImGui_Input("Size", &size_,
-                {size_seed_ * 1e-3, size_seed_ * 1e4, size_seed_ * 0.1, size_seed_});
-    ImGui_Input("Speed", &speed_,
-                {speed_seed_ * 1e-3, speed_seed_ * 1e4, speed_seed_ * 0.1, speed_seed_});
-    ImGui_Input("Mass", &mass_,
-                {mass_seed_ * 1e-3, mass_seed_ * 1e4, mass_seed_ * 0.1, mass_seed_});
-    ImGui_Input("Life", &lifetime_, {0.0f, 60.0f, 0.1, 1.0});
+    constexpr mjtNum kLifeDefault = 5.0;
+    ImGui_SliderLog("Size", &size_, size_seed_ * 0.1, size_seed_ * 10);
+    ImGui::BeginDisabled(size_ == size_seed_);
+    if (ImGui_ResetButton("Size")) size_ = size_seed_;
+    ImGui::EndDisabled();
+    ImGui_SliderLog("Speed", &speed_, speed_seed_ * 0.1, speed_seed_ * 10);
+    ImGui::BeginDisabled(speed_ == speed_seed_);
+    if (ImGui_ResetButton("Speed")) speed_ = speed_seed_;
+    ImGui::EndDisabled();
+    ImGui_SliderLog("Mass", &mass_, mass_seed_ * 0.1, mass_seed_ * 100);
+    ImGui::BeginDisabled(mass_ == mass_seed_);
+    if (ImGui_ResetButton("Mass")) mass_ = mass_seed_;
+    ImGui::EndDisabled();
+    ImGui_SliderLog("Life", &lifetime_, 0.5, 50.0);
+    ImGui::BeginDisabled(lifetime_ == kLifeDefault);
+    if (ImGui_ResetButton("Life")) lifetime_ = kLifeDefault;
+    ImGui::EndDisabled();
 
     int shape = type_ == mjGEOM_BOX ? 0 : 1;
     const char* names[] = {"Box", "Sphere"};