diff --git a/engine/app.cpp b/engine/app.cpp
index 881f9c3..1c45442 100644
--- a/engine/app.cpp
+++ b/engine/app.cpp
@@ -81,6 +81,7 @@ void App::initLog()
     CHAR path[MAX_PATH];
     GetCurrentDirectoryA(sizeof(path), path);
     data_path = path;
+    rec_path = data_path + "\\frames";
 #endif
 
     LogRemote::I.start();
@@ -440,12 +441,18 @@ void App::rec_start()
 {
     if (!rec_running)
     {
+#if defined(__IOS__) || defined(__OSX__)
         NSString* path = [NSString stringWithUTF8String:rec_path.c_str()];
         NSArray *dirFiles = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:nil];
         NSArray *jpgFiles = [dirFiles filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"self ENDSWITH '.jpg'"]];
         rec_count = (int)[jpgFiles count];
         update_rec_frames();
         rec_thread = std::thread(&App::rec_loop, this);
+#else
+        rec_count = Asset::list_files(rec_path, false, ".*\\.jpg").size();
+        update_rec_frames();
+        rec_thread = std::thread(&App::rec_loop, this);
+#endif
     }
 }
 
diff --git a/engine/brush.cpp b/engine/brush.cpp
index 82f3005..12b405b 100644
--- a/engine/brush.cpp
+++ b/engine/brush.cpp
@@ -195,8 +195,10 @@ void ui::Stroke::reset(bool clear_keypoints /*= false*/)
 }
 void ui::Stroke::add_point(glm::vec2 pos, float pressure)
 {
+#ifdef __IOS__
     m_curve = glm::min(m_curve + 0.1f, 1.f);
     pressure = pressure * glm::pow(m_curve, 2.f);
+#endif // __IOS__
     
     if (m_brush.m_tip_size_pressure)
         m_step = glm::max(m_brush.m_tip_spacing * m_brush.m_tip_size * pressure * 800.f, 1.f);
diff --git a/engine/main.cpp b/engine/main.cpp
index b545a20..003d508 100644
--- a/engine/main.cpp
+++ b/engine/main.cpp
@@ -413,7 +413,7 @@ int main(int argc, char** argv)
                     App::I.redraw = true;
                     glBindFramebuffer(GL_FRAMEBUFFER, 0);
                     App::I.clear();
-                    App::I.update((float)(t1 - t0) / 1000.0f);
+                    App::I.update(dt);
                     SwapBuffers(hDC);
                     async_unlock();
                     //LOG("swap main");
@@ -421,7 +421,7 @@ int main(int argc, char** argv)
             }
         }
     }
-
+    App::I.terminate();
     // Clean up
     WacomTablet::I.terminate();
     DestroyWindow(hWnd);