From 894cc9c91592041a47c33300d784eac4e6412162 Mon Sep 17 00:00:00 2001 From: Sebastian Parborg Date: Wed, 3 Feb 2021 17:47:46 +0100 Subject: Geometry Nodes: Add Collection Info Node Implements a node to get collection objects. These objects are then passed along as instances in the node tree. Follow up tasks: Multiple nodes does not support instancing yet: T85159 Changing collection offset does not trigger a refresh: T85274 Reviewed By: Jacques, Dalai, Hans Differential Revision: http://developer.blender.org/D10151 --- source/blender/nodes/CMakeLists.txt | 1 + source/blender/nodes/NOD_geometry.h | 1 + source/blender/nodes/NOD_static_types.h | 1 + .../geometry/nodes/node_geo_collection_info.cc | 99 ++++++++++++++++++++++ 4 files changed, 102 insertions(+) create mode 100644 source/blender/nodes/geometry/nodes/node_geo_collection_info.cc (limited to 'source/blender/nodes') diff --git a/source/blender/nodes/CMakeLists.txt b/source/blender/nodes/CMakeLists.txt index 405a8dcbf46..9982962cabd 100644 --- a/source/blender/nodes/CMakeLists.txt +++ b/source/blender/nodes/CMakeLists.txt @@ -150,6 +150,7 @@ set(SRC geometry/nodes/node_geo_attribute_randomize.cc geometry/nodes/node_geo_attribute_vector_math.cc geometry/nodes/node_geo_boolean.cc + geometry/nodes/node_geo_collection_info.cc geometry/nodes/node_geo_common.cc geometry/nodes/node_geo_edge_split.cc geometry/nodes/node_geo_join_geometry.cc diff --git a/source/blender/nodes/NOD_geometry.h b/source/blender/nodes/NOD_geometry.h index d78f76e0b52..178831d5d96 100644 --- a/source/blender/nodes/NOD_geometry.h +++ b/source/blender/nodes/NOD_geometry.h @@ -49,6 +49,7 @@ void register_node_type_geo_point_rotate(void); void register_node_type_geo_align_rotation_to_vector(void); void register_node_type_geo_sample_texture(void); void register_node_type_geo_points_to_volume(void); +void register_node_type_geo_collection_info(void); #ifdef __cplusplus } diff --git a/source/blender/nodes/NOD_static_types.h b/source/blender/nodes/NOD_static_types.h index cc2f6a294f2..cbc5f715db0 100644 --- a/source/blender/nodes/NOD_static_types.h +++ b/source/blender/nodes/NOD_static_types.h @@ -291,6 +291,7 @@ DefNode(GeometryNode, GEO_NODE_POINT_SCALE, def_geo_point_scale, "POINT_SCALE", DefNode(GeometryNode, GEO_NODE_POINT_TRANSLATE, def_geo_point_translate, "POINT_TRANSLATE", PointTranslate, "Point Translate", "") DefNode(GeometryNode, GEO_NODE_ATTRIBUTE_SAMPLE_TEXTURE, def_geo_attribute_sample_texture, "ATTRIBUTE_SAMPLE_TEXTURE", AttributeSampleTexture, "Attribute Sample Texture", "") DefNode(GeometryNode, GEO_NODE_POINTS_TO_VOLUME, def_geo_points_to_volume, "POINTS_TO_VOLUME", PointsToVolume, "Points to Volume", "") +DefNode(GeometryNode, GEO_NODE_COLLECTION_INFO, def_geo_collection_info, "COLLECTION_INFO", CollectionInfo, "Collection Info", "") /* undefine macros */ #undef DefNode diff --git a/source/blender/nodes/geometry/nodes/node_geo_collection_info.cc b/source/blender/nodes/geometry/nodes/node_geo_collection_info.cc new file mode 100644 index 00000000000..637a117e2af --- /dev/null +++ b/source/blender/nodes/geometry/nodes/node_geo_collection_info.cc @@ -0,0 +1,99 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "node_geometry_util.hh" + +#include "BLI_math_matrix.h" + +#include "DNA_collection_types.h" + +static bNodeSocketTemplate geo_node_collection_info_in[] = { + {SOCK_COLLECTION, N_("Collection")}, + {-1, ""}, +}; + +static bNodeSocketTemplate geo_node_collection_info_out[] = { + {SOCK_GEOMETRY, N_("Geometry")}, + {-1, ""}, +}; + +namespace blender::nodes { + +static void geo_node_collection_info_exec(GeoNodeExecParams params) +{ + bke::PersistentCollectionHandle collection_handle = + params.extract_input("Collection"); + Collection *collection = params.handle_map().lookup(collection_handle); + + GeometrySet geometry_set_out; + + if (collection == nullptr) { + params.set_output("Geometry", geometry_set_out); + return; + } + + const bNode &bnode = params.node(); + NodeGeometryCollectionInfo *node_storage = (NodeGeometryCollectionInfo *)bnode.storage; + const bool transform_space_relative = (node_storage->transform_space == + GEO_NODE_TRANSFORM_SPACE_RELATIVE); + + InstancedData instance; + instance.type = INSTANCE_DATA_TYPE_COLLECTION; + instance.data.collection = collection; + + InstancesComponent &instances = geometry_set_out.get_component_for_write(); + + float transform_mat[4][4]; + unit_m4(transform_mat); + const Object *self_object = params.self_object(); + + if (transform_space_relative) { + copy_v3_v3(transform_mat[3], collection->instance_offset); + + mul_m4_m4_pre(transform_mat, self_object->imat); + + float3 self_loc; + copy_v3_v3(self_loc, self_object->obmat[3]); + } + instances.add_instance(instance, transform_mat, -1); + + params.set_output("Geometry", geometry_set_out); +} + +static void geo_node_collection_info_node_init(bNodeTree *UNUSED(tree), bNode *node) +{ + NodeGeometryCollectionInfo *data = (NodeGeometryCollectionInfo *)MEM_callocN( + sizeof(NodeGeometryCollectionInfo), __func__); + data->transform_space = GEO_NODE_TRANSFORM_SPACE_ORIGINAL; + node->storage = data; +} + +} // namespace blender::nodes + +void register_node_type_geo_collection_info() +{ + static bNodeType ntype; + + geo_node_type_base(&ntype, GEO_NODE_COLLECTION_INFO, "Collection Info", NODE_CLASS_INPUT, 0); + node_type_socket_templates(&ntype, geo_node_collection_info_in, geo_node_collection_info_out); + node_type_init(&ntype, blender::nodes::geo_node_collection_info_node_init); + node_type_storage(&ntype, + "NodeGeometryCollectionInfo", + node_free_standard_storage, + node_copy_standard_storage); + ntype.geometry_node_execute = blender::nodes::geo_node_collection_info_exec; + nodeRegisterType(&ntype); +} -- cgit v1.2.3