diff -r 9dbfc0031887 -r 362b7659dc76 test/sandbox.c
--- a/test/sandbox.c	Wed Nov 08 21:53:43 2023 +0100
+++ b/test/sandbox.c	Wed Nov 08 23:17:07 2023 +0100
@@ -49,7 +49,7 @@
     settings.title = "Sandbox Application";
 
     AscWindow *window = asc_window_initialize(0, &settings);
-
+    asc_shader_initialize_predefined();
     while (asc_loop_next()) {
         // quit application on any error
         if (show_message_box_on_error(window->window)) break;