diff --git a/src/single_window/render.cpp b/src/single_window/render.cpp
index 8f8106c..eb2186e 100644
--- a/src/single_window/render.cpp
+++ b/src/single_window/render.cpp
@@ -313,7 +313,11 @@ int Render::Run() {
     return -1;
   }
 
-  // Create main window with SDL_Renderer graphics context
+  // use linear filtering to render textures otherwise the graphics will be
+  // blurry
+  SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
+
+  // create main window with SDL_Renderer graphics context
   SDL_WindowFlags window_flags =
       (SDL_WindowFlags)(SDL_WINDOW_ALLOW_HIGHDPI | SDL_WINDOW_BORDERLESS);
   main_window_ = SDL_CreateWindow(
diff --git a/thirdparty/projectx b/thirdparty/projectx
index a8333c6..bbd05bc 160000
--- a/thirdparty/projectx
+++ b/thirdparty/projectx
@@ -1 +1 @@
-Subproject commit a8333c622b953c1b1b0705ad3928280cd2681248
+Subproject commit bbd05bcb8dad934834a3cd51b1af673ade52679b