scripts/startup/bl_ui/node_add_menu_geometry.py

@@ -650,6 +650,7 @@ class NODE_MT_geometry_node_GEO_VOLUME_READ(Menu):
 
     def draw(self, context):
         layout = self.layout
+        node_add_menu.add_node_type(layout, "GeometryNodeGetNamedGrid")
         if context.preferences.experimental.use_new_volume_nodes:
             node_add_menu.add_node_type(layout, "GeometryNodeInputSignedDistance")
         node_add_menu.draw_assets_for_catalog(layout, "Volume/Read")
@@ -672,6 +673,7 @@ class NODE_MT_geometry_node_GEO_VOLUME_WRITE(Menu):
 
     def draw(self, context):
         layout = self.layout
+        node_add_menu.add_node_type(layout, "GeometryNodeStoreNamedGrid")
         node_add_menu.draw_assets_for_catalog(layout, "Volume/Write")
 
 
@@ -682,6 +684,7 @@ class NODE_MT_geometry_node_GEO_VOLUME_OPERATIONS(Menu):
     def draw(self, context):
         layout = self.layout
         node_add_menu.add_node_type(layout, "GeometryNodeVolumeToMesh")
+        node_add_menu.add_node_type(layout, "GeometryNodePruneGrid")
         if context.preferences.experimental.use_new_volume_nodes:
             node_add_menu.add_node_type(layout, "GeometryNodeMeanFilterSDFVolume")
             node_add_menu.add_node_type(layout, "GeometryNodeOffsetSDFVolume")

source/blender/blenkernel/BKE_node.h

@@ -1316,6 +1316,9 @@ void BKE_nodetree_remove_layer_n(struct bNodeTree *ntree, struct Scene *scene, i
 #define GEO_NODE_INPUT_EDGE_SMOOTH 2115
 #define GEO_NODE_SPLIT_TO_INSTANCES 2116
 #define GEO_NODE_INPUT_NAMED_LAYER_SELECTION 2117
+#define GEO_NODE_GET_NAMED_GRID 2118
+#define GEO_NODE_STORE_NAMED_GRID 2119
+#define GEO_NODE_PRUNE_GRID 2120
 
 /** \} */
 

source/blender/nodes/NOD_static_types.h

@@ -332,6 +332,7 @@ DefNode(GeometryNode, GEO_NODE_FILL_CURVE, 0, "FILL_CURVE", FillCurve, "Fill Cur
 DefNode(GeometryNode, GEO_NODE_FILLET_CURVE, 0, "FILLET_CURVE", FilletCurve, "Fillet Curve", "Round corners by generating circular arcs on each control point")
 DefNode(GeometryNode, GEO_NODE_FLIP_FACES, 0, "FLIP_FACES", FlipFaces, "Flip Faces", "Reverse the order of the vertices and edges of selected faces, flipping their normal direction")
 DefNode(GeometryNode, GEO_NODE_GEOMETRY_TO_INSTANCE, 0, "GEOMETRY_TO_INSTANCE", GeometryToInstance, "Geometry to Instance", "Convert each input geometry into an instance, which can be much faster than the Join Geometry node when the inputs are large")
+DefNode(GeometryNode, GEO_NODE_GET_NAMED_GRID, 0, "GET_NAMED_GRID", GetNamedGrid, "Get Named Grid", "Get grid data from a volume geometry with the specified name")
 DefNode(GeometryNode, GEO_NODE_IMAGE_INFO, 0, "IMAGE_INFO", ImageInfo, "Image Info", "Retrieve information about an image")
 DefNode(GeometryNode, GEO_NODE_IMAGE_TEXTURE, def_geo_image_texture, "IMAGE_TEXTURE", ImageTexture, "Image Texture", "Sample values from an image texture")
 DefNode(GeometryNode, GEO_NODE_INDEX_OF_NEAREST, 0, "INDEX_OF_NEAREST", IndexOfNearest, "Index of Nearest", "Find the nearest element in a group. Similar to the \"Sample Nearest\" node")
@@ -394,6 +395,7 @@ DefNode(GeometryNode, GEO_NODE_MESH_TOPOLOGY_EDGES_OF_VERTEX, 0, "EDGES_OF_VERTE
 DefNode(GeometryNode, GEO_NODE_MESH_TOPOLOGY_FACE_OF_CORNER, 0, "FACE_OF_CORNER", FaceOfCorner, "Face of Corner", "Retrieve the face each face corner is part of")
 DefNode(GeometryNode, GEO_NODE_MESH_TOPOLOGY_OFFSET_CORNER_IN_FACE, 0, "OFFSET_CORNER_IN_FACE", OffsetCornerInFace, "Offset Corner in Face", "Retrieve corners in the same face as another")
 DefNode(GeometryNode, GEO_NODE_MESH_TOPOLOGY_VERTEX_OF_CORNER, 0, "VERTEX_OF_CORNER", VertexOfCorner, "Vertex of Corner", "Retrieve the vertex each face corner is attached to")
+DefNode(GeometryNode, GEO_NODE_PRUNE_GRID, 0, "PRUNE_GRID", PruneGrid, "Prune Grid", "Reduce grid memory by replacing voxels of similar values with tiles")
 DefNode(GeometryNode, GEO_NODE_OBJECT_INFO, 0, "OBJECT_INFO", ObjectInfo, "Object Info", "Retrieve information from an object")
 DefNode(GeometryNode, GEO_NODE_OFFSET_POINT_IN_CURVE, 0, "OFFSET_POINT_IN_CURVE", OffsetPointInCurve, "Offset Point in Curve", "Offset a control point index within its curve")
 DefNode(GeometryNode, GEO_NODE_OFFSET_SDF_VOLUME, 0, "OFFSET_SDF_VOLUME", OffsetSDFVolume, "Offset SDF Volume", "Move the surface of an SDF volume inwards or outwards")
@@ -445,6 +447,7 @@ DefNode(GeometryNode, GEO_NODE_SIMULATION_OUTPUT, def_geo_simulation_output, "SI
 DefNode(GeometryNode, GEO_NODE_SPLIT_TO_INSTANCES, 0, "Split to Instances", SplitToInstances, "Split to Instances", "Create separate geometries containing the elements from the same group")
 DefNode(GeometryNode, GEO_NODE_SPLIT_EDGES, 0, "SPLIT_EDGES", SplitEdges, "Split Edges", "Duplicate mesh edges and break connections with the surrounding faces")
 DefNode(GeometryNode, GEO_NODE_STORE_NAMED_ATTRIBUTE, 0, "STORE_NAMED_ATTRIBUTE", StoreNamedAttribute, "Store Named Attribute", "Store the result of a field on a geometry as an attribute with the specified name")
+DefNode(GeometryNode, GEO_NODE_STORE_NAMED_GRID, 0, "STORE_NAMED_GRID", StoreNamedGrid, "Store Named Grid", "Store grid data in a volume geometry with the specified name")
 DefNode(GeometryNode, GEO_NODE_STRING_JOIN, 0, "STRING_JOIN", StringJoin, "Join Strings", "Combine any number of input strings")
 DefNode(GeometryNode, GEO_NODE_STRING_TO_CURVES, def_geo_string_to_curves, "STRING_TO_CURVES", StringToCurves, "String to Curves", "Generate a paragraph of text with a specific font, using a curve instance to store each character")
 DefNode(GeometryNode, GEO_NODE_SUBDIVIDE_CURVE, 0, "SUBDIVIDE_CURVE", SubdivideCurve, "Subdivide Curve", "Dividing each curve segment into a specified number of pieces")

source/blender/nodes/geometry/CMakeLists.txt

@@ -78,6 +78,7 @@ set(SRC
   nodes/node_geo_extrude_mesh.cc
   nodes/node_geo_flip_faces.cc
   nodes/node_geo_geometry_to_instance.cc
+  nodes/node_geo_get_named_grid.cc
   nodes/node_geo_image.cc
   nodes/node_geo_image_info.cc
   nodes/node_geo_image_texture.cc
@@ -152,6 +153,7 @@ set(SRC
   nodes/node_geo_points_to_vertices.cc
   nodes/node_geo_points_to_volume.cc
   nodes/node_geo_proximity.cc
+  nodes/node_geo_prune_grid.cc
   nodes/node_geo_raycast.cc
   nodes/node_geo_realize_instances.cc
   nodes/node_geo_remove_attribute.cc
@@ -185,6 +187,7 @@ set(SRC
   nodes/node_geo_simulation_output.cc
   nodes/node_geo_split_to_instances.cc
   nodes/node_geo_store_named_attribute.cc
+  nodes/node_geo_store_named_grid.cc
   nodes/node_geo_string_join.cc
   nodes/node_geo_string_to_curves.cc
   nodes/node_geo_subdivision_surface.cc

source/blender/nodes/geometry/nodes/node_geo_get_named_grid.cc

@@ -0,0 +1,42 @@
+/* SPDX-FileCopyrightText: 2023 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "node_geometry_util.hh"
+
+namespace blender::nodes::node_geo_get_named_grid_cc {
+
+static void node_declare(NodeDeclarationBuilder &b)
+{
+  b.add_input<decl::Geometry>("Volume");
+  b.add_input<decl::String>("Name");
+  b.add_input<decl::Bool>("Remove").default_value(true);
+
+  b.add_output<decl::Geometry>("Volume");
+  //  b.add_output<decl::Grid>("Grid");
+}
+
+static void node_geo_exec(GeoNodeExecParams params)
+{
+#ifdef WITH_OPENVDB
+  params.set_default_remaining_outputs();
+#else
+  params.set_default_remaining_outputs();
+  params.error_message_add(NodeWarningType::Error,
+                           TIP_("Disabled, Blender was compiled without OpenVDB"));
+#endif
+}
+
+static void node_register()
+{
+  static bNodeType ntype;
+
+  geo_node_type_base(&ntype, GEO_NODE_GET_NAMED_GRID, "Get Named Grid", NODE_CLASS_GEOMETRY);
+
+  ntype.declare = node_declare;
+  ntype.geometry_node_execute = node_geo_exec;
+  nodeRegisterType(&ntype);
+}
+NOD_REGISTER_NODE(node_register)
+
+}  // namespace blender::nodes::node_geo_get_named_grid_cc

source/blender/nodes/geometry/nodes/node_geo_prune_grid.cc

@@ -0,0 +1,40 @@
+/* SPDX-FileCopyrightText: 2023 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "node_geometry_util.hh"
+
+namespace blender::nodes::node_geo_prune_grid_cc {
+
+static void node_declare(NodeDeclarationBuilder &b)
+{
+  //  b.add_input<decl::Grid>("Grid");
+  b.add_input<decl::Float>("Tolerance").default_value(0.01f).min(0.0f);
+
+  //  b.add_output<decl::Grid>("Grid");
+}
+
+static void node_geo_exec(GeoNodeExecParams params)
+{
+#ifdef WITH_OPENVDB
+  params.set_default_remaining_outputs();
+#else
+  params.set_default_remaining_outputs();
+  params.error_message_add(NodeWarningType::Error,
+                           TIP_("Disabled, Blender was compiled without OpenVDB"));
+#endif
+}
+
+static void node_register()
+{
+  static bNodeType ntype;
+
+  geo_node_type_base(&ntype, GEO_NODE_PRUNE_GRID, "Prune Grid", NODE_CLASS_CONVERTER);
+
+  ntype.declare = node_declare;
+  ntype.geometry_node_execute = node_geo_exec;
+  nodeRegisterType(&ntype);
+}
+NOD_REGISTER_NODE(node_register)
+
+}  // namespace blender::nodes::node_geo_prune_grid_cc

source/blender/nodes/geometry/nodes/node_geo_store_named_grid.cc

@@ -0,0 +1,41 @@
+/* SPDX-FileCopyrightText: 2023 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "node_geometry_util.hh"
+
+namespace blender::nodes::node_geo_store_named_grid_cc {
+
+static void node_declare(NodeDeclarationBuilder &b)
+{
+  b.add_input<decl::Geometry>("Volume");
+  b.add_input<decl::String>("Name");
+  //  b.add_input<decl::Grid>("Grid");
+
+  b.add_output<decl::Geometry>("Volume");
+}
+
+static void node_geo_exec(GeoNodeExecParams params)
+{
+#ifdef WITH_OPENVDB
+  params.set_default_remaining_outputs();
+#else
+  params.set_default_remaining_outputs();
+  params.error_message_add(NodeWarningType::Error,
+                           TIP_("Disabled, Blender was compiled without OpenVDB"));
+#endif
+}
+
+static void node_register()
+{
+  static bNodeType ntype;
+
+  geo_node_type_base(&ntype, GEO_NODE_STORE_NAMED_GRID, "Store Named Grid", NODE_CLASS_GEOMETRY);
+
+  ntype.declare = node_declare;
+  ntype.geometry_node_execute = node_geo_exec;
+  nodeRegisterType(&ntype);
+}
+NOD_REGISTER_NODE(node_register)
+
+}  // namespace blender::nodes::node_geo_store_named_grid_cc