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Fix: remove materials from simulation state in all cases #108411

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Jacques Lucke merged 1 commits from JacquesLucke/blender:simulation-state-remove-materials into blender-v3.6-release 2023-06-01 12:11:16 +02:00
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1 changed files with 16 additions and 0 deletions
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16
source/blender/nodes/geometry/nodes/node_geo_simulation_output.cc
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@ -131,17 +131,33 @@ const CPPType &get_simulation_item_cpp_type(const NodeSimulationItem &item)
return get_simulation_item_cpp_type(eNodeSocketDatatype(item.socket_type));
}
static void remove_materials(Material ***materials, short *materials_num)
{
MEM_SAFE_FREE(*materials);
*materials_num = 0;
}
/**
* Removess parts of the geometry that can't be stored in the simulation state:
* - Anonymous attributes can't be stored because it is not known which of them will or will not be
* used in the future.
* - Materials can't be stored directly, because they are linked ID data blocks that can't be
* restored from baked data currently.
*/
static void cleanup_geometry_for_simulation_state(GeometrySet &main_geometry)
{
main_geometry.modify_geometry_sets([&](GeometrySet &geometry) {
if (Mesh *mesh = geometry.get_mesh_for_write()) {
mesh->attributes_for_write().remove_anonymous();
remove_materials(&mesh->mat, &mesh->totcol);
}
if (Curves *curves = geometry.get_curves_for_write()) {
curves->geometry.wrap().attributes_for_write().remove_anonymous();
remove_materials(&curves->mat, &curves->totcol);
}
if (PointCloud *pointcloud = geometry.get_pointcloud_for_write()) {
pointcloud->attributes_for_write().remove_anonymous();
remove_materials(&pointcloud->mat, &pointcloud->totcol);
}
if (bke::Instances *instances = geometry.get_instances_for_write()) {
instances->attributes_for_write().remove_anonymous();