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blender-archive/source/blender/nodes/geometry/node_geometry_util.hh
Hans Goudey 19bab2a536 Geometry Nodes: Object info node optional instance output
The object info node output an instance as a performance optimization.
Before that optimization was (almost) invisible to the user, but now
that we aren't automatically realizing instances, it isn't intuitive
for a single object to become an instance.

I refactored the transform node so its ability to translate/transform
an entire geometry set was more usable from elsewhere and exposed the
function to get a geometry set from an object.

Differential Revision: https://developer.blender.org/D12833
2021-10-15 14:20:53 -05:00

121 lines
4.6 KiB
C++

/*
* 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.
*/
#pragma once
#include <string.h>
#include "BLI_float3.hh"
#include "BLI_utildefines.h"
#include "MEM_guardedalloc.h"
#include "DNA_node_types.h"
#include "BKE_node.h"
#include "BLT_translation.h"
#include "NOD_geometry.h"
#include "NOD_geometry_exec.hh"
#include "NOD_socket_declarations.hh"
#include "node_util.h"
void geo_node_type_base(
struct bNodeType *ntype, int type, const char *name, short nclass, short flag);
bool geo_node_poll_default(struct bNodeType *ntype,
struct bNodeTree *ntree,
const char **r_disabled_hint);
namespace blender::nodes {
void update_attribute_input_socket_availabilities(bNode &node,
const StringRef name,
const GeometryNodeAttributeInputMode mode,
const bool name_is_available = true);
Array<uint32_t> get_geometry_element_ids_as_uints(const GeometryComponent &component,
const AttributeDomain domain);
void transform_mesh(Mesh &mesh,
const float3 translation,
const float3 rotation,
const float3 scale);
void transform_geometry_set(GeometrySet &geometry,
const float4x4 &transform,
const Depsgraph &depsgraph);
Mesh *create_line_mesh(const float3 start, const float3 delta, const int count);
Mesh *create_grid_mesh(const int verts_x,
const int verts_y,
const float size_x,
const float size_y);
Mesh *create_cylinder_or_cone_mesh(const float radius_top,
const float radius_bottom,
const float depth,
const int circle_segments,
const int side_segments,
const int fill_segments,
const GeometryNodeMeshCircleFillType fill_type);
Mesh *create_cuboid_mesh(float3 size, int verts_x, int verts_y, int verts_z);
/**
* Copies the point domain attributes from `in_component` that are in the mask to `out_component`.
*/
void copy_point_attributes_based_on_mask(const GeometryComponent &in_component,
GeometryComponent &result_component,
Span<bool> masks,
const bool invert);
/**
* Returns the parts of the geometry that are on the selection for the given domain. If the domain
* is not applicable for the component, e.g. face domain for point cloud, nothing happens to that
* component. If no component can work with the domain, then `error_message` is set to true.
*/
void separate_geometry(GeometrySet &geometry_set,
const AttributeDomain domain,
const GeometryNodeDeleteGeometryMode mode,
const Field<bool> &selection_field,
const bool invert,
bool &r_is_error);
struct CurveToPointsResults {
int result_size;
MutableSpan<float3> positions;
MutableSpan<float> radii;
MutableSpan<float> tilts;
Map<AttributeIDRef, GMutableSpan> point_attributes;
MutableSpan<float3> tangents;
MutableSpan<float3> normals;
MutableSpan<float3> rotations;
};
/**
* Create references for all result point cloud attributes to simplify accessing them later on.
*/
CurveToPointsResults curve_to_points_create_result_attributes(PointCloudComponent &points,
const CurveEval &curve);
void curve_create_default_rotation_attribute(Span<float3> tangents,
Span<float3> normals,
MutableSpan<float3> rotations);
} // namespace blender::nodes