Fix a Blender 4.x API change for particle systems

Author: CodeFHD

export/caches/object_cache.py

@@ -197,7 +197,7 @@ def get_total_particle_count(particle_system, is_viewport_render):
     if is_viewport_render:
         particle_count *= settings.display_percentage / 100
     if settings.child_type != "NONE":
-        particle_count *= settings.child_nbr if is_viewport_render else settings.rendered_child_count
+        particle_count *= settings.child_percent if is_viewport_render else settings.rendered_child_count
     return particle_count
 
 

export/hair.py

@@ -121,7 +121,7 @@ def convert_hair(exporter, obj, obj_key, psys, depsgraph, luxcore_scene, scene_p
         else:
             # Number of virtual parents reduces the number of exported children
             num_virtual_parents = math.trunc(0.3 * psys.settings.virtual_parents
-                                             * psys.settings.child_nbr * num_parents)
+                                             * psys.settings.child_percent * num_parents)
             start = num_parents + num_virtual_parents
 
         # Collect point/color/uv information from Blender