Geometry Nodes: new Geometry to Instance node
This adds a new Geometry to Instance node that turns every connected input geometry into an instance. Those instances can for example be used in the Instance on Points node. Differential Revision: https://developer.blender.org/D13500
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Notes:
blender-bot
2023-02-14 03:52:45 +01:00
Referenced by issue #92964, Node to create a single instance from geometry
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@ -174,6 +174,7 @@ def geometry_node_items(context):
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yield NodeItem("GeometryNodeBoundBox")
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yield NodeItem("GeometryNodeConvexHull")
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yield NodeItem("GeometryNodeDeleteGeometry")
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yield NodeItem("GeometryNodeGeometryToInstance")
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yield NodeItem("GeometryNodeProximity")
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yield NodeItem("GeometryNodeJoinGeometry")
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yield NodeItem("GeometryNodeRaycast")
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@ -1715,6 +1715,7 @@ int ntreeTexExecTree(struct bNodeTree *ntree,
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#define GEO_NODE_INPUT_MESH_FACE_AREA 1139
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#define GEO_NODE_INPUT_MESH_FACE_NEIGHBORS 1140
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#define GEO_NODE_INPUT_MESH_VERTEX_NEIGHBORS 1141
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#define GEO_NODE_GEOMETRY_TO_INSTANCE 1142
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/** \} */
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/* -------------------------------------------------------------------- */
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@ -5799,6 +5799,7 @@ static void registerGeometryNodes()
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register_node_type_geo_distribute_points_on_faces();
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register_node_type_geo_dual_mesh();
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register_node_type_geo_edge_split();
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register_node_type_geo_geometry_to_instance();
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register_node_type_geo_image_texture();
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register_node_type_geo_input_curve_handles();
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register_node_type_geo_input_curve_tilt();
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@ -97,6 +97,7 @@ void register_node_type_geo_delete_geometry(void);
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void register_node_type_geo_distribute_points_on_faces(void);
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void register_node_type_geo_dual_mesh(void);
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void register_node_type_geo_edge_split(void);
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void register_node_type_geo_geometry_to_instance(void);
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void register_node_type_geo_image_texture(void);
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void register_node_type_geo_input_curve_handles(void);
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void register_node_type_geo_input_curve_tilt(void);
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@ -350,6 +350,7 @@ DefNode(GeometryNode, GEO_NODE_DISTRIBUTE_POINTS_ON_FACES, def_geo_distribute_po
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DefNode(GeometryNode, GEO_NODE_DUAL_MESH, 0, "DUAL_MESH", DualMesh, "Dual Mesh", "")
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DefNode(GeometryNode, GEO_NODE_FILL_CURVE, def_geo_curve_fill, "FILL_CURVE", FillCurve, "Fill Curve", "")
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DefNode(GeometryNode, GEO_NODE_FILLET_CURVE, def_geo_curve_fillet, "FILLET_CURVE", FilletCurve, "Fillet Curve", "")
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DefNode(GeometryNode, GEO_NODE_GEOMETRY_TO_INSTANCE, 0, "GEOMETRY_TO_INSTANCE", GeometryToInstance, "Geometry to Instance", "")
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DefNode(GeometryNode, GEO_NODE_IMAGE_TEXTURE, def_geo_image_texture, "IMAGE_TEXTURE", ImageTexture, "Image Texture", "")
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DefNode(GeometryNode, GEO_NODE_INPUT_CURVE_HANDLES, 0, "INPUT_CURVE_HANDLES", InputCurveHandlePositions, "Curve Handle Positions", "")
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DefNode(GeometryNode, GEO_NODE_INPUT_CURVE_TILT, 0, "INPUT_CURVE_TILT", InputCurveTilt, "Curve Tilt", "")
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@ -115,6 +115,7 @@ set(SRC
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nodes/node_geo_distribute_points_on_faces.cc
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nodes/node_geo_dual_mesh.cc
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nodes/node_geo_edge_split.cc
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nodes/node_geo_geometry_to_instance.cc
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nodes/node_geo_image_texture.cc
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nodes/node_geo_input_curve_handles.cc
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nodes/node_geo_input_curve_tilt.cc
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@ -0,0 +1,55 @@
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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "node_geometry_util.hh"
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namespace blender::nodes::node_geo_geometry_to_instance_cc {
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static void node_declare(NodeDeclarationBuilder &b)
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{
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b.add_input<decl::Geometry>(N_("Geometry")).multi_input();
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b.add_output<decl::Geometry>(N_("Instances"));
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}
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static void node_geo_exec(GeoNodeExecParams params)
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{
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Vector<GeometrySet> geometries = params.extract_multi_input<GeometrySet>("Geometry");
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GeometrySet instances_geometry;
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InstancesComponent &instances_component =
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instances_geometry.get_component_for_write<InstancesComponent>();
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for (GeometrySet &geometry : geometries) {
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geometry.ensure_owns_direct_data();
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const int handle = instances_component.add_reference(std::move(geometry));
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instances_component.add_instance(handle, float4x4::identity());
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}
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params.set_output("Instances", std::move(instances_geometry));
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}
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} // namespace blender::nodes::node_geo_geometry_to_instance_cc
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void register_node_type_geo_geometry_to_instance()
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{
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namespace file_ns = blender::nodes::node_geo_geometry_to_instance_cc;
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static bNodeType ntype;
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geo_node_type_base(
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&ntype, GEO_NODE_GEOMETRY_TO_INSTANCE, "Geometry to Instance", NODE_CLASS_GEOMETRY, 0);
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node_type_size(&ntype, 160, 100, 300);
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ntype.geometry_node_execute = file_ns::node_geo_exec;
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ntype.declare = file_ns::node_declare;
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nodeRegisterType(&ntype);
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}
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