Erik Abrahamsson
4b30b5c57f
Geometry Nodes: SDF Volume nodes milestone 1 Adds initial support for SDF volume creation and manipulation. `SDF volume` is Blender's name of an OpenVDB grid of type Level Set. See the discussion about naming in #91668. The new nodes are: - Mesh to SDF Volume: Converts a mesh to an SDF Volume - Points to SDF Volume: Converts points to an SDF Volume - Mean Filter SDF Volume: Applies a Mean Filter to an SDF - Offset SDF Volume: Applies an offset to an SDF - SDF Volume Sphere: Creates an SDF Volume in the shape of a sphere For now an experimental option `New Volume Nodes` needs to be enabled in Blender preferences for the nodes to be visible. See the current work plan for Volume Nodes in #103248. Pull Request: blender/blender#105090
127 lines
4.4 KiB
C++
127 lines
4.4 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include <string.h>
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#include "BLI_math_matrix_types.hh"
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#include "BLI_math_vector_types.hh"
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#include "BLI_utildefines.h"
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#include "MEM_guardedalloc.h"
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#include "DNA_node_types.h"
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#include "BKE_node.h"
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#include "BLT_translation.h"
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#include "NOD_geometry.h"
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#include "NOD_geometry_exec.hh"
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#include "NOD_socket_declarations.hh"
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#include "NOD_socket_declarations_geometry.hh"
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#include "RNA_access.h"
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#include "node_geometry_register.hh"
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#include "node_util.h"
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#ifdef WITH_OPENVDB
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# include <openvdb/Types.h>
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#endif
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struct BVHTreeFromMesh;
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void geo_node_type_base(struct bNodeType *ntype, int type, const char *name, short nclass);
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bool geo_node_poll_default(const struct bNodeType *ntype,
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const struct bNodeTree *ntree,
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const char **r_disabled_hint);
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namespace blender::nodes {
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void transform_mesh(Mesh &mesh,
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const float3 translation,
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const float3 rotation,
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const float3 scale);
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void transform_geometry_set(GeoNodeExecParams ¶ms,
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GeometrySet &geometry,
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const float4x4 &transform,
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const Depsgraph &depsgraph);
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Mesh *create_line_mesh(const float3 start, const float3 delta, int count);
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Mesh *create_grid_mesh(
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int verts_x, int verts_y, float size_x, float size_y, const AttributeIDRef &uv_map_id);
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struct ConeAttributeOutputs {
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AutoAnonymousAttributeID top_id;
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AutoAnonymousAttributeID bottom_id;
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AutoAnonymousAttributeID side_id;
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AutoAnonymousAttributeID uv_map_id;
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};
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Mesh *create_cylinder_or_cone_mesh(float radius_top,
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float radius_bottom,
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float depth,
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int circle_segments,
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int side_segments,
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int fill_segments,
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GeometryNodeMeshCircleFillType fill_type,
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ConeAttributeOutputs &attribute_outputs);
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/**
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* Returns the parts of the geometry that are on the selection for the given domain. If the domain
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* is not applicable for the component, e.g. face domain for point cloud, nothing happens to that
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* component. If no component can work with the domain, then `error_message` is set to true.
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*/
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void separate_geometry(GeometrySet &geometry_set,
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eAttrDomain domain,
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GeometryNodeDeleteGeometryMode mode,
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const Field<bool> &selection_field,
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const AnonymousAttributePropagationInfo &propagation_info,
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bool &r_is_error);
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void get_closest_in_bvhtree(BVHTreeFromMesh &tree_data,
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const VArray<float3> &positions,
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const IndexMask mask,
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const MutableSpan<int> r_indices,
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const MutableSpan<float> r_distances_sq,
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const MutableSpan<float3> r_positions);
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int apply_offset_in_cyclic_range(IndexRange range, int start_index, int offset);
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std::optional<eCustomDataType> node_data_type_to_custom_data_type(eNodeSocketDatatype type);
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std::optional<eCustomDataType> node_socket_to_custom_data_type(const bNodeSocket &socket);
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#ifdef WITH_OPENVDB
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/**
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* Initializes the VolumeComponent of a GeometrySet with a new Volume from points.
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* The grid class should be either openvdb::GRID_FOG_VOLUME or openvdb::GRID_LEVEL_SET.
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*/
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void initialize_volume_component_from_points(GeoNodeExecParams ¶ms,
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const NodeGeometryPointsToVolume &storage,
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GeometrySet &r_geometry_set,
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openvdb::GridClass gridClass);
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#endif
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class FieldAtIndexInput final : public bke::GeometryFieldInput {
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private:
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Field<int> index_field_;
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GField value_field_;
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eAttrDomain value_field_domain_;
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public:
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FieldAtIndexInput(Field<int> index_field, GField value_field, eAttrDomain value_field_domain);
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GVArray get_varray_for_context(const bke::GeometryFieldContext &context,
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const IndexMask mask) const final;
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std::optional<eAttrDomain> preferred_domain(const GeometryComponent & /*component*/) const final
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{
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return value_field_domain_;
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}
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};
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} // namespace blender::nodes
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