diff -r 0a8747b02df8 -r 77c13e14a65f src/scene.c
--- a/src/scene.c	Tue May 20 19:29:20 2025 +0200
+++ b/src/scene.c	Wed May 28 21:39:18 2025 +0200
@@ -35,7 +35,6 @@
 #include <cx/tree.h>
 #include <cx/linked_list.h>
 #include <cx/array_list.h>
-#include <cx/utils.h>
 
 #include <GL/glew.h>
 
@@ -93,7 +92,7 @@
 
     // create render groups
     CxList *render_group[ASC_RENDER_GROUP_COUNT];
-    cx_for_n(i, ASC_RENDER_GROUP_COUNT) {
+    for (unsigned i = 0 ; i < ASC_RENDER_GROUP_COUNT ; i++) {
         render_group[i] = cxArrayListCreateSimple(CX_STORE_POINTERS, 32);
     }
 
@@ -202,7 +201,7 @@
     }
 
     // deallocate render groups
-    cx_for_n(i, ASC_RENDER_GROUP_COUNT) {
+    for (unsigned i = 0 ; i < ASC_RENDER_GROUP_COUNT ; i++) {
         cxListFree(render_group[i]);
     }
 }