Hans Goudey
219058c213
This commit removes the implicit conversion from points to a mesh that used to happen before the next modifier. It also removes the implicit realizing of instances that happened before another modifier. Now we have specific nodes for both of these operations, the implicit conversions make less sense, and implicit instance realizing has already been removed in other nodes. This adds another geometry nodes modifier before modifiers that would have realized instances implicitly before. Currently adding another data-block during versioning after linking means that an assert needs to be changed. That should be made unnecessary by T92333. Differential Revision: https://developer.blender.org/D12722
61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
/*
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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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#pragma once
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#include "BKE_geometry_set.hh"
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namespace blender::bke {
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GeometrySet object_get_evaluated_geometry_set(const Object &object);
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/**
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* Used to keep track of a group of instances using the same geometry data.
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*/
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struct GeometryInstanceGroup {
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/**
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* The geometry set instanced on each of the transforms. The components are not necessarily
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* owned here. For example, they may be owned by the instanced object. This cannot be a
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* reference because not all instanced data will necessarily have a #geometry_set_eval.
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*/
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GeometrySet geometry_set;
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/**
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* As an optimization to avoid copying, the same geometry set can be associated with multiple
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* instances. Each instance is stored as a transform matrix here. Again, these must be owned
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* because they may be transformed from the original data. TODO: Validate that last statement.
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*/
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Vector<float4x4> transforms;
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};
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void geometry_set_gather_instances(const GeometrySet &geometry_set,
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Vector<GeometryInstanceGroup> &r_instance_groups);
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GeometrySet geometry_set_realize_instances(const GeometrySet &geometry_set);
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/**
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* Add information about all the attributes on every component of the type. The resulting info
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* will contain the highest complexity data type and the highest priority domain among every
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* attribute with the given name on all of the input components.
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*/
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void geometry_set_gather_instances_attribute_info(
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Span<GeometryInstanceGroup> set_groups,
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Span<GeometryComponentType> component_types,
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const Set<std::string> &ignored_attributes,
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Map<AttributeIDRef, AttributeKind> &r_attributes);
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} // namespace blender::bke
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