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blender-archive/source/blender/nodes/geometry/node_geometry_util.hh

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Simulations: Add simulation node tree type This implements a new builtin node tree type called `SimulationNodeTree`. It is not yet embedded in the `Simulation` data block. The node tree will initially be used for the new particle nodes system. When the cmake option `WITH_NEW_SIMULATION_TYPE` is enabled, a new `Simulation Editor` is shown in the editors menu (which is just a node editor). This patch does not add entries to the Add Node menu, so it is empty. Reviewers: brecht Differential Revision: https://developer.blender.org/D7287
2020-04-20 10:58:43 +02:00
/*
* 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>
Geometry Nodes: initial scattering and geometry nodes This is the initial merge from the geometry-nodes branch. Nodes: * Attribute Math * Boolean * Edge Split * Float Compare * Object Info * Point Distribute * Point Instance * Random Attribute * Random Float * Subdivision Surface * Transform * Triangulate It includes the initial evaluation of geometry node groups in the Geometry Nodes modifier. Notes on the Generic attribute access API The API adds an indirection for attribute access. That has the following benefits: * Most code does not have to care about how an attribute is stored internally. This is mainly necessary, because we have to deal with "legacy" attributes such as vertex weights and attributes that are embedded into other structs such as vertex positions. * When reading from an attribute, we generally don't care what domain the attribute is stored on. So we want to abstract away the interpolation that that adapts attributes from one domain to another domain (this is not actually implemented yet). Other possible improvements for later iterations include: * Actually implement interpolation between domains. * Don't use inheritance for the different attribute types. A single class for read access and one for write access might be enough, because we know all the ways in which attributes are stored internally. We don't want more different internal structures in the future. On the contrary, ideally we can consolidate the different storage formats in the future to reduce the need for this indirection. * Remove the need for heap allocations when creating attribute accessors. It includes commits from: * Dalai Felinto * Hans Goudey * Jacques Lucke * Léo Depoix
2020-12-02 13:25:25 +01:00
#include "BLI_float3.hh"
Simulations: Add simulation node tree type This implements a new builtin node tree type called `SimulationNodeTree`. It is not yet embedded in the `Simulation` data block. The node tree will initially be used for the new particle nodes system. When the cmake option `WITH_NEW_SIMULATION_TYPE` is enabled, a new `Simulation Editor` is shown in the editors menu (which is just a node editor). This patch does not add entries to the Add Node menu, so it is empty. Reviewers: brecht Differential Revision: https://developer.blender.org/D7287
2020-04-20 10:58:43 +02:00
#include "BLI_utildefines.h"
#include "MEM_guardedalloc.h"
#include "DNA_node_types.h"
#include "BKE_node.h"
#include "BLT_translation.h"
Geometry Nodes: initial scattering and geometry nodes This is the initial merge from the geometry-nodes branch. Nodes: * Attribute Math * Boolean * Edge Split * Float Compare * Object Info * Point Distribute * Point Instance * Random Attribute * Random Float * Subdivision Surface * Transform * Triangulate It includes the initial evaluation of geometry node groups in the Geometry Nodes modifier. Notes on the Generic attribute access API The API adds an indirection for attribute access. That has the following benefits: * Most code does not have to care about how an attribute is stored internally. This is mainly necessary, because we have to deal with "legacy" attributes such as vertex weights and attributes that are embedded into other structs such as vertex positions. * When reading from an attribute, we generally don't care what domain the attribute is stored on. So we want to abstract away the interpolation that that adapts attributes from one domain to another domain (this is not actually implemented yet). Other possible improvements for later iterations include: * Actually implement interpolation between domains. * Don't use inheritance for the different attribute types. A single class for read access and one for write access might be enough, because we know all the ways in which attributes are stored internally. We don't want more different internal structures in the future. On the contrary, ideally we can consolidate the different storage formats in the future to reduce the need for this indirection. * Remove the need for heap allocations when creating attribute accessors. It includes commits from: * Dalai Felinto * Hans Goudey * Jacques Lucke * Léo Depoix
2020-12-02 13:25:25 +01:00
#include "NOD_geometry.h"
#include "NOD_geometry_exec.hh"
Simulations: Add simulation node tree type This implements a new builtin node tree type called `SimulationNodeTree`. It is not yet embedded in the `Simulation` data block. The node tree will initially be used for the new particle nodes system. When the cmake option `WITH_NEW_SIMULATION_TYPE` is enabled, a new `Simulation Editor` is shown in the editors menu (which is just a node editor). This patch does not add entries to the Add Node menu, so it is empty. Reviewers: brecht Differential Revision: https://developer.blender.org/D7287
2020-04-20 10:58:43 +02:00
#include "node_util.h"
Geometry Nodes: initial scattering and geometry nodes This is the initial merge from the geometry-nodes branch. Nodes: * Attribute Math * Boolean * Edge Split * Float Compare * Object Info * Point Distribute * Point Instance * Random Attribute * Random Float * Subdivision Surface * Transform * Triangulate It includes the initial evaluation of geometry node groups in the Geometry Nodes modifier. Notes on the Generic attribute access API The API adds an indirection for attribute access. That has the following benefits: * Most code does not have to care about how an attribute is stored internally. This is mainly necessary, because we have to deal with "legacy" attributes such as vertex weights and attributes that are embedded into other structs such as vertex positions. * When reading from an attribute, we generally don't care what domain the attribute is stored on. So we want to abstract away the interpolation that that adapts attributes from one domain to another domain (this is not actually implemented yet). Other possible improvements for later iterations include: * Actually implement interpolation between domains. * Don't use inheritance for the different attribute types. A single class for read access and one for write access might be enough, because we know all the ways in which attributes are stored internally. We don't want more different internal structures in the future. On the contrary, ideally we can consolidate the different storage formats in the future to reduce the need for this indirection. * Remove the need for heap allocations when creating attribute accessors. It includes commits from: * Dalai Felinto * Hans Goudey * Jacques Lucke * Léo Depoix
2020-12-02 13:25:25 +01:00
void geo_node_type_base(
Simulations: Add simulation node tree type This implements a new builtin node tree type called `SimulationNodeTree`. It is not yet embedded in the `Simulation` data block. The node tree will initially be used for the new particle nodes system. When the cmake option `WITH_NEW_SIMULATION_TYPE` is enabled, a new `Simulation Editor` is shown in the editors menu (which is just a node editor). This patch does not add entries to the Add Node menu, so it is empty. Reviewers: brecht Differential Revision: https://developer.blender.org/D7287
2020-04-20 10:58:43 +02:00
struct bNodeType *ntype, int type, const char *name, short nclass, short flag);
Geometry Nodes: initial scattering and geometry nodes This is the initial merge from the geometry-nodes branch. Nodes: * Attribute Math * Boolean * Edge Split * Float Compare * Object Info * Point Distribute * Point Instance * Random Attribute * Random Float * Subdivision Surface * Transform * Triangulate It includes the initial evaluation of geometry node groups in the Geometry Nodes modifier. Notes on the Generic attribute access API The API adds an indirection for attribute access. That has the following benefits: * Most code does not have to care about how an attribute is stored internally. This is mainly necessary, because we have to deal with "legacy" attributes such as vertex weights and attributes that are embedded into other structs such as vertex positions. * When reading from an attribute, we generally don't care what domain the attribute is stored on. So we want to abstract away the interpolation that that adapts attributes from one domain to another domain (this is not actually implemented yet). Other possible improvements for later iterations include: * Actually implement interpolation between domains. * Don't use inheritance for the different attribute types. A single class for read access and one for write access might be enough, because we know all the ways in which attributes are stored internally. We don't want more different internal structures in the future. On the contrary, ideally we can consolidate the different storage formats in the future to reduce the need for this indirection. * Remove the need for heap allocations when creating attribute accessors. It includes commits from: * Dalai Felinto * Hans Goudey * Jacques Lucke * Léo Depoix
2020-12-02 13:25:25 +01:00
bool geo_node_poll_default(struct bNodeType *ntype, struct bNodeTree *ntree);
Geometry Nodes: simplify supporting different input socket types for attributes This is a non-functional change. The functionality introduced in this commit is not used in master yet. It is used by nodes that are being developed in other branches though.
2020-12-09 16:20:48 +01:00
namespace blender::nodes {
void update_attribute_input_socket_availabilities(bNode &node,
const StringRef name,
const GeometryNodeAttributeInputMode mode);
Geometry Nodes: Poisson disk point distribution node/method This patch does two things: * Introduce a Seed to the random distribution method * Bring in a new distribution method for the point scattering node Patch Review: https://developer.blender.org/D9787 Note: This commit doesn't not handle doversion. Which means that users need to manually update their files that were using the Point Distribute node and reconnect inputs to the "Maximum Density" socket. Original patch by Sebastian Parborg, with changes to not rely on the cy libraries and overall cleanup. Patch review by Jacques Lucke, besides help with the new "heap" system that was required for this algorithm. Based on Cem Yuksel. 2015. Sample Elimination for Generating Poisson Disk Sample. Sets. Computer Graphics Forum 34, 2 (May 2015), 25-32 http://www.cemyuksel.com/research/sampleelimination/
2020-12-16 16:59:30 +01:00
Geometry Nodes: Point separate and attribute compare nodes This patch adds two related nodes, a node for separating points and mesh vertices based on a boolean attribute input, and a node for creating boolean attributes with comparisons. See the differential for an example file and video. Point Separate (T83059) The output in both geometries is just point data, contained in the mesh and point cloud components, depending which components had data in the input geometry. Any points with the mask attribute set to true will be moved from the first geometry output to the second. This means that for meshes, all edge and face data will be removed. Any point domain attributes are moved to the correct output geometry as well. Attribute Compare (T83057) The attribute compare does the "Equal" and "Not Equal" operations by comparing vectors and colors based on their distance from each other. For other operations, the comparison is between the lengths of the vector inputs. In general, the highest complexity data type is used for the operation, and a new function to determine that is added. Differential Revision: https://developer.blender.org/D9876
2020-12-17 12:22:47 -06:00
CustomDataType attribute_domain_highest_complexity(Span<CustomDataType>);
Geometry Nodes: Poisson disk point distribution node/method This patch does two things: * Introduce a Seed to the random distribution method * Bring in a new distribution method for the point scattering node Patch Review: https://developer.blender.org/D9787 Note: This commit doesn't not handle doversion. Which means that users need to manually update their files that were using the Point Distribute node and reconnect inputs to the "Maximum Density" socket. Original patch by Sebastian Parborg, with changes to not rely on the cy libraries and overall cleanup. Patch review by Jacques Lucke, besides help with the new "heap" system that was required for this algorithm. Based on Cem Yuksel. 2015. Sample Elimination for Generating Poisson Disk Sample. Sets. Computer Graphics Forum 34, 2 (May 2015), 25-32 http://www.cemyuksel.com/research/sampleelimination/
2020-12-16 16:59:30 +01:00
void poisson_disk_point_elimination(Vector<float3> const *input_points,
Vector<float3> *output_points,
float maximum_distance,
float3 boundbox);
Geometry Nodes: support randomly picking instances from collection This uses the "id" attribute to randomly pick instances from a collection for each point. There is one issue. When the collection is updated (e.g. when an object is added to it), the nodes modifier is not automatically updated. It seems like we don't have the infrastructure to support this dependency yet. The same issue exists in the Boolean modifier and with collision collections. This should be solved separately soonish. When "Whole Collection" is disabled, one direct child of the input collection is instanced at each point. A direct child can be an object or a collection. Currently, all objects are picked approximately equally often. In the future, we will provide more control over which point gets which instance. Differential Revision: https://developer.blender.org/D9884 Ref T82372.
2020-12-18 16:00:45 +01:00
Array<uint32_t> get_geometry_element_ids_as_uints(const GeometryComponent &component,
const AttributeDomain domain);
Geometry Nodes: Poisson disk point distribution node/method This patch does two things: * Introduce a Seed to the random distribution method * Bring in a new distribution method for the point scattering node Patch Review: https://developer.blender.org/D9787 Note: This commit doesn't not handle doversion. Which means that users need to manually update their files that were using the Point Distribute node and reconnect inputs to the "Maximum Density" socket. Original patch by Sebastian Parborg, with changes to not rely on the cy libraries and overall cleanup. Patch review by Jacques Lucke, besides help with the new "heap" system that was required for this algorithm. Based on Cem Yuksel. 2015. Sample Elimination for Generating Poisson Disk Sample. Sets. Computer Graphics Forum 34, 2 (May 2015), 25-32 http://www.cemyuksel.com/research/sampleelimination/
2020-12-16 16:59:30 +01:00
} // namespace blender::nodes
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