Mercurial > hg > ascension / file diff

--- a/src/scene.c	Mon Jul 07 22:41:48 2025 +0200
+++ b/src/scene.c	Mon Jul 07 22:51:06 2025 +0200
@@ -149,35 +149,31 @@
 
         // TODO: implement culling
 
-        // check if geometry needs update
+        // clear information flags from the previous frame
         asc_clear_flag(node->flags,
                        ASC_SCENE_NODE_GRAPHICS_UPDATED
                        | ASC_SCENE_NODE_TRANSFORM_UPDATED);
+        // check if geometry needs an update
         if (asc_test_flag(node->flags, ASC_SCENE_NODE_UPDATE_GRAPHICS)) {
             asc_set_flag(node->flags, ASC_SCENE_NODE_GRAPHICS_UPDATED);
             asc_clear_flag(node->flags, ASC_SCENE_NODE_UPDATE_GRAPHICS);
             assert(node->update_func != NULL);
             node->update_func(node);
         }
+        // check if transform needs an update
         if (asc_test_flag(node->flags, ASC_SCENE_NODE_UPDATE_TRANSFORM)) {
             asc_set_flag(node->flags, ASC_SCENE_NODE_TRANSFORM_UPDATED);
             asc_clear_flag(node->flags, ASC_SCENE_NODE_UPDATE_TRANSFORM);
-
-            // Only recalculate from components if not using custom transform
-            if (!asc_test_flag(node->flags, ASC_SCENE_NODE_CUSTOM_TRANSFORM)) {
-                asc_transform_from_vec3f(
+            if (node->parent == scene->root) {
+                // skip unnecessary multiplication with unity matrix
+                asc_transform_copy(node->world_transform, node->transform);
+            } else {
+                asc_mat4f_mulst(
+                        node->world_transform,
                         node->transform,
-                        node->position,
-                        node->scale,
-                        node->rotation
+                        node->parent->world_transform
                 );
             }
-
-            asc_mat4f_mulst(
-                    node->world_transform,
-                    node->transform,
-                    node->parent->world_transform
-            );
         }
 
         // add to render group