Differential D10256 Diff 33360 source/blender/blenkernel/intern/DerivedMesh.cc

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source/blender/blenkernel/intern/DerivedMesh.cc

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* After this function ends, the geometry set will still have NO mesh component. Instead, an input		* After this function ends, the geometry set will still have NO mesh component. Instead, an input
* mesh is passed separately and is returned separately.		* mesh is passed separately and is returned separately.
*		*
* The purpose of the geometry set is to store all non-mesh geometry components that are generated		* The purpose of the geometry set is to store all non-mesh geometry components that are generated
* by modifiers.		* by 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,
Object *ob,		Object *ob,
		JacquesLuckeUnsubmitted Done Inline Actions Unused parameter. JacquesLucke: Unused parameter.
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_output = BKE_modifier_modify_mesh(md, &mectx, input_mesh);		mesh_output = BKE_modifier_modify_mesh(md, &mectx, 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. */
BLI_assert(!geometry_set.has<MeshComponent>());
MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>();		MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>();
mesh_component.replace(input_mesh, GeometryOwnershipType::Editable);		/* Replace only the mesh rather than the whole component, because the entire #MeshComponent
mesh_component.copy_vertex_group_names_from_object(*ob);		* might have been replaced by data from a different object in the node tree, which means the
		* component contain vertex group name data for that object that should not be removed. */
		JacquesLuckeUnsubmitted Not Done Inline Actions `constains` JacquesLucke: `constains`
		mesh_component.replace_mesh(input_mesh, GeometryOwnershipType::Editable);

/* Let the modifier change the geometry set. */		/* Let the modifier change the geometry set. */
mti->modifyGeometrySet(md, &mectx, &geometry_set);		mti->modifyGeometrySet(md, &mectx, &geometry_set);

/* Release the mesh from the geometry set again. */		/* Release the mesh from the geometry set again. */
if (geometry_set.has<MeshComponent>()) {		if (geometry_set.has<MeshComponent>()) {
MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>();		MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>();
mesh_output = mesh_component.release();		mesh_output = mesh_component.release();
geometry_set.remove<MeshComponent>();
}		}

/* Return an empty mesh instead of null. */		/* Return an empty mesh instead of null. */
if (mesh_output == nullptr) {		if (mesh_output == nullptr) {
mesh_output = BKE_mesh_new_nomain(0, 0, 0, 0, 0);		mesh_output = BKE_mesh_new_nomain(0, 0, 0, 0, 0);
BKE_mesh_copy_settings(mesh_output, input_mesh);		BKE_mesh_copy_settings(mesh_output, input_mesh);
}		}
}		}
Show All 18 Lines	static void mesh_calc_modifiers(struct Depsgraph *depsgraph,
/* Input and final mesh. Final mesh is only created the moment the first		/* Input and final mesh. Final mesh is only created the moment the first
* constructive modifier is executed, or a deform modifier needs normals		* constructive modifier is executed, or a deform modifier needs normals
* or certain data layers. */		* or certain data layers. */
Mesh mesh_input = (Mesh )ob->data;		Mesh mesh_input = (Mesh )ob->data;
Mesh *mesh_final = nullptr;		Mesh *mesh_final = nullptr;
Mesh *mesh_deform = nullptr;		Mesh *mesh_deform = nullptr;
/* This geometry set contains the non-mesh data that might be generated by modifiers. */		/* This geometry set contains the non-mesh data that might be generated by modifiers. */
GeometrySet geometry_set_final;		GeometrySet geometry_set_final;

		/* Add the initial mesh component, with a copy of the vertex group names from the object,
		* since they need to be stored in the geometry set for evaluation. */
		MeshComponent &initial_mesh_component =
		geometry_set_final.get_component_for_write<MeshComponent>();
		initial_mesh_component.copy_vertex_group_names_from_object(*ob);

BLI_assert((mesh_input->id.tag & LIB_TAG_COPIED_ON_WRITE_EVAL_RESULT) == 0);		BLI_assert((mesh_input->id.tag & LIB_TAG_COPIED_ON_WRITE_EVAL_RESULT) == 0);

/* Deformed vertex locations array. Deform only modifier need this type of		/* Deformed vertex locations array. Deform only modifier need this type of
* float array rather than MVert*. Tracked along with mesh_final as an		* float array rather than MVert*. Tracked along with mesh_final as an
* optimization to avoid copying coordinates back and forth if there are		* optimization to avoid copying coordinates back and forth if there are
* multiple sequential deform only modifiers. */		* multiple sequential deform only modifiers. */
float(*deformed_verts)[3] = nullptr;		float(*deformed_verts)[3] = nullptr;
int num_deformed_verts = mesh_input->totvert;		int num_deformed_verts = mesh_input->totvert;
▲ Show 20 Lines • Show All 923 Lines • ▼ Show 20 Lines	#endif
* Check ownership now, since later on we can not go to a mesh owned by someone else via		* Check ownership now, since later on we can not go to a mesh owned by someone else via
* object's runtime: this could cause access freed data on depsgraph destruction (mesh who owns		* object's runtime: this could cause access freed data on depsgraph destruction (mesh who owns
* the final result might be freed prior to object). */		* the final result might be freed prior to object). */
Mesh mesh = (Mesh )ob->data;		Mesh mesh = (Mesh )ob->data;
const bool is_mesh_eval_owned = (mesh_eval != mesh->runtime.mesh_eval);		const bool is_mesh_eval_owned = (mesh_eval != mesh->runtime.mesh_eval);
BKE_object_eval_assign_data(ob, &mesh_eval->id, is_mesh_eval_owned);		BKE_object_eval_assign_data(ob, &mesh_eval->id, is_mesh_eval_owned);

/* Add the final mesh as read-only non-owning component to the geometry set. */		/* Add the final mesh as read-only non-owning component to the geometry set. */
BLI_assert(!geometry_set_eval->has<MeshComponent>());
MeshComponent &mesh_component = geometry_set_eval->get_component_for_write<MeshComponent>();		MeshComponent &mesh_component = geometry_set_eval->get_component_for_write<MeshComponent>();
mesh_component.replace(mesh_eval, GeometryOwnershipType::ReadOnly);		mesh_component.replace_mesh(mesh_eval, GeometryOwnershipType::ReadOnly);
ob->runtime.geometry_set_eval = geometry_set_eval;		ob->runtime.geometry_set_eval = geometry_set_eval;

ob->runtime.mesh_deform_eval = mesh_deform_eval;		ob->runtime.mesh_deform_eval = mesh_deform_eval;
ob->runtime.last_data_mask = *dataMask;		ob->runtime.last_data_mask = *dataMask;
ob->runtime.last_need_mapping = need_mapping;		ob->runtime.last_need_mapping = need_mapping;

BKE_object_boundbox_calc_from_mesh(ob, mesh_eval);		BKE_object_boundbox_calc_from_mesh(ob, mesh_eval);

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