diff --git a/engine/split/v4k_audio.c b/engine/split/v4k_audio.c
index c430fa2..71abc45 100644
--- a/engine/split/v4k_audio.c
+++ b/engine/split/v4k_audio.c
@@ -520,7 +520,7 @@ int audio_queue( const void *samples, int num_samples, int flags ) {
         if( audio_queue_voice < 0 ) return 0;
     }
 
-    audio_queue_t *aq = MALLOC(sizeof(audio_queue_t) + bytes << (channels == 1)); // dupe space if going to be converted from mono to stereo
+    audio_queue_t *aq = MALLOC(sizeof(audio_queue_t) + (bytes << (channels == 1))); // dupe space if going to be converted from mono to stereo
     aq->cursor = 0;
     aq->avail = bytes;
     aq->flags = flags;
diff --git a/engine/split/v4k_profile.c b/engine/split/v4k_profile.c
index 2f1d7e1..5c5142e 100644
--- a/engine/split/v4k_profile.c
+++ b/engine/split/v4k_profile.c
@@ -19,6 +19,9 @@ void (profile_render)() {
 
     if( has_menu ? ui_window("Profiler", 0) : ui_panel("Profiler", 0) ) {
 
+        double fps = window_fps();
+        profile_setstat("Render.num_fps", fps);
+
         if(1) { // @todo: ui_plot()
             // draw fps-meter: 300 samples, [0..70] range each, 70px height plot.
             nk_layout_row_dynamic(ui_ctx, 70, 1);
@@ -26,7 +29,7 @@ void (profile_render)() {
             enum { COUNT = 300 };
 
             static float values[COUNT] = {0}; static int offset = 0;
-            values[offset=(offset+1)%COUNT] = window_fps();
+            values[offset=(offset+1)%COUNT] = fps;
 
             int index = -1;
             if( nk_chart_begin(ui_ctx, NK_CHART_LINES, COUNT, 0.f, 70.f) ) {
diff --git a/engine/split/v4k_render.c b/engine/split/v4k_render.c
index d7674c9..6f41924 100644
--- a/engine/split/v4k_render.c
+++ b/engine/split/v4k_render.c
@@ -2359,6 +2359,21 @@ mesh_t mesh() {
     return z;
 }
 
+aabb mesh_bounds(mesh_t *m) {
+    aabb b = {{1e9,1e9,1e9},{-1e9,-1e9,-1e9}};
+    for( int i = 0; i < array_count(m->in_vertex3); ++i ) {
+        if( m->in_vertex3[i].x < b.min.x ) b.min.x = m->in_vertex3[i].x;
+        if( m->in_vertex3[i].x > b.max.x ) b.max.x = m->in_vertex3[i].x;
+
+        if( m->in_vertex3[i].y < b.min.y ) b.min.y = m->in_vertex3[i].y;
+        if( m->in_vertex3[i].y > b.max.y ) b.max.y = m->in_vertex3[i].y;
+
+        if( m->in_vertex3[i].z < b.min.z ) b.min.z = m->in_vertex3[i].z;
+        if( m->in_vertex3[i].z > b.max.z ) b.max.z = m->in_vertex3[i].z;
+    }
+    return b;
+}
+
 void mesh_update(mesh_t *m, const char *format, int vertex_stride,int vertex_count,const void *vertex_data, int index_count,const void *index_data, int flags) {
     m->flags = flags;
 
diff --git a/engine/split/v4k_system.c b/engine/split/v4k_system.c
index 2a533c7..3d77c19 100644
--- a/engine/split/v4k_system.c
+++ b/engine/split/v4k_system.c
@@ -862,6 +862,9 @@ int tty_cols() {
 #endif
     return 80;
 }
+void tty_detach() {
+    ifdef(win32, FreeConsole());
+}
 void tty_attach() {
 #if is(win32)
     // in order to have a Windows gui application with console:
diff --git a/engine/split/v4k_system.h b/engine/split/v4k_system.h
index d668a37..9f3f326 100644
--- a/engine/split/v4k_system.h
+++ b/engine/split/v4k_system.h
@@ -19,6 +19,7 @@ API float       optionf(const char *commalist, float defaults); // app_option?
 API void        tty_color(unsigned color);
 API void        tty_reset();
 API void        tty_attach();
+API void        tty_detach();
 
 API const char* app_exec(const char *command); // returns ("%15d %s", retcode, output_last_line)
 API int         app_cores();