Differential D12722 Diff 42990 source/blender/blenkernel/intern/DerivedMesh.cc

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source/blender/blenkernel/intern/DerivedMesh.cc

Show First 20 Lines • Show All 880 Lines • ▼ Show 20 Lines	void BKE_mesh_wrapper_deferred_finalize(Mesh *me_eval,
if (me_eval->runtime.wrapper_type_finalize & (1 << ME_WRAPPER_TYPE_BMESH)) {		if (me_eval->runtime.wrapper_type_finalize & (1 << ME_WRAPPER_TYPE_BMESH)) {
editbmesh_calc_modifier_final_normals(me_eval, cd_mask_finalize);		editbmesh_calc_modifier_final_normals(me_eval, cd_mask_finalize);
me_eval->runtime.wrapper_type_finalize &= ~(1 << ME_WRAPPER_TYPE_BMESH);		me_eval->runtime.wrapper_type_finalize &= ~(1 << ME_WRAPPER_TYPE_BMESH);
}		}
BLI_assert(me_eval->runtime.wrapper_type_finalize == 0);		BLI_assert(me_eval->runtime.wrapper_type_finalize == 0);
}		}

/**		/**
* Some modifiers don't work on geometry sets directly, but expect a single mesh as input.
* Therefore, we convert data from the geometry set into a single mesh, so that those
* modifiers can work on it as well.
*/
static Mesh prepare_geometry_set_for_mesh_modifier(Mesh mesh, GeometrySet &r_geometry_set)
{
if (!r_geometry_set.has_instances() && !r_geometry_set.has_pointcloud()) {
return mesh;
}

{
/* Add the mesh to the geometry set. */
MeshComponent &mesh_component = r_geometry_set.get_component_for_write<MeshComponent>();
mesh_component.replace(mesh, GeometryOwnershipType::Editable);
}
{
/* Combine mesh and all instances into a single mesh that can be passed to the modifier. */
GeometrySet new_geometry_set = blender::bke::geometry_set_realize_mesh_for_modifier(
r_geometry_set);
MeshComponent &mesh_component = new_geometry_set.get_component_for_write<MeshComponent>();
Mesh *new_mesh = mesh_component.release();
r_geometry_set = new_geometry_set;
return new_mesh;
}
}

/**
* Modifies the given mesh and geometry set. The mesh is not passed as part of the mesh component		* Modifies the given mesh and geometry set. The mesh is not passed as part of the mesh component
* in the \a geometry_set input, it is only passed in \a input_mesh and returned in the return		* in the \a geometry_set input, it is only passed in \a input_mesh and returned in the return
* value.		* value.
*		*
* The purpose of the geometry set is to store all geometry components that are generated		* The purpose of the geometry set is to store all geometry components that are generated
* by modifiers to allow outputting non-mesh data from modifiers.		* by modifiers to allow outputting non-mesh data from modifiers.
*/		*/
static Mesh modifier_modify_mesh_and_geometry_set(ModifierData md,		static Mesh modifier_modify_mesh_and_geometry_set(ModifierData md,
const ModifierEvalContext &mectx,		const ModifierEvalContext &mectx,
Mesh *input_mesh,		Mesh *input_mesh,
GeometrySet &geometry_set)		GeometrySet &geometry_set)
{		{
Mesh *mesh_output = nullptr;		Mesh *mesh_output = nullptr;
const ModifierTypeInfo *mti = BKE_modifier_get_info((ModifierType)md->type);		const ModifierTypeInfo *mti = BKE_modifier_get_info((ModifierType)md->type);
if (mti->modifyGeometrySet == nullptr) {		if (mti->modifyGeometrySet == nullptr) {
Mesh *new_input_mesh = prepare_geometry_set_for_mesh_modifier(input_mesh, geometry_set);		mesh_output = BKE_modifier_modify_mesh(md, &mectx, input_mesh);
mesh_output = BKE_modifier_modify_mesh(md, &mectx, new_input_mesh);

/* The caller is responsible for freeing `input_mesh` and `mesh_output`. The intermediate
* `new_input_mesh` has to be freed here. */
if (!ELEM(new_input_mesh, input_mesh, mesh_output)) {
BKE_id_free(nullptr, new_input_mesh);
}
}		}
else {		else {
/* For performance reasons, this should be called by the modifier and/or nodes themselves at		/* For performance reasons, this should be called by the modifier and/or nodes themselves at
* some point. */		* some point. */
BKE_mesh_wrapper_ensure_mdata(input_mesh);		BKE_mesh_wrapper_ensure_mdata(input_mesh);

/* Adds a new mesh component to the geometry set based on the #input_mesh. */		/* Adds a new mesh component to the geometry set based on the #input_mesh. */
MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>();		MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>();
▲ Show 20 Lines • Show All 225 Lines • ▼ Show 20 Lines	for (; md; md = md->next, md_datamask = md_datamask->next) {

/* How to apply modifier depends on (a) what we already have as		/* How to apply modifier depends on (a) what we already have as
* a result of previous modifiers (could be a Mesh or just		* a result of previous modifiers (could be a Mesh or just
* deformed vertices) and (b) what type the modifier is. */		* deformed vertices) and (b) what type the modifier is. */
if (mti->type == eModifierTypeType_OnlyDeform) {		if (mti->type == eModifierTypeType_OnlyDeform) {
/* No existing verts to deform, need to build them. */		/* No existing verts to deform, need to build them. */
if (!deformed_verts) {		if (!deformed_verts) {
if (mesh_final) {		if (mesh_final) {
Mesh *mesh_final_new = prepare_geometry_set_for_mesh_modifier(mesh_final,
geometry_set_final);
if (mesh_final_new != mesh_final) {
BLI_assert(mesh_final != mesh_input);
BKE_id_free(nullptr, mesh_final);
mesh_final = mesh_final_new;
}

/* Deforming a mesh, read the vertex locations		/* Deforming a mesh, read the vertex locations
* out of the mesh and deform them. Once done with this		* out of the mesh and deform them. Once done with this
* run of deformers verts will be written back. */		* run of deformers verts will be written back. */
deformed_verts = BKE_mesh_vert_coords_alloc(mesh_final, &num_deformed_verts);		deformed_verts = BKE_mesh_vert_coords_alloc(mesh_final, &num_deformed_verts);
}		}
else {		else {
deformed_verts = BKE_mesh_vert_coords_alloc(mesh_input, &num_deformed_verts);		deformed_verts = BKE_mesh_vert_coords_alloc(mesh_input, &num_deformed_verts);
}		}
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