Hans Goudey
6a1ab4747b
Previously, things like materials, symmetry, and selection options stored on `Curves` weren't copied to the result in nodes like the subdivide and resample nodes. Now they are, which fixes some unexpected behavior and allows visualization of the sculpt mode selection. In the realize instances and join nodes the behavior is the same as for meshes, the parameters are taken from the first (top) input. I also refactored some functions to return a `CurvesGeometry` by-value, which makes it the responsibility of the node to copy the parameters. That should make the algorithms more reusable in other situations. Differential Revision: https://developer.blender.org/D15408
92 lines
3.2 KiB
C++
92 lines
3.2 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include "BKE_curves.hh"
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/** \file
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* \ingroup bke
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* \brief Low-level operations for curves.
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*/
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#include "BLI_function_ref.hh"
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#include "BLI_generic_pointer.hh"
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namespace blender::bke::curves {
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/**
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* Copy the provided point attribute values between all curves in the #curve_ranges index
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* ranges, assuming that all curves have the same number of control points in #src_curves
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* and #dst_curves.
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*/
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void copy_point_data(const CurvesGeometry &src_curves,
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const CurvesGeometry &dst_curves,
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Span<IndexRange> curve_ranges,
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GSpan src,
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GMutableSpan dst);
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void copy_point_data(const CurvesGeometry &src_curves,
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const CurvesGeometry &dst_curves,
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IndexMask src_curve_selection,
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GSpan src,
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GMutableSpan dst);
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template<typename T>
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void copy_point_data(const CurvesGeometry &src_curves,
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const CurvesGeometry &dst_curves,
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const IndexMask src_curve_selection,
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const Span<T> src,
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MutableSpan<T> dst)
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{
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copy_point_data(src_curves, dst_curves, src_curve_selection, GSpan(src), GMutableSpan(dst));
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}
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void fill_points(const CurvesGeometry &curves,
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IndexMask curve_selection,
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GPointer value,
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GMutableSpan dst);
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template<typename T>
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void fill_points(const CurvesGeometry &curves,
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const IndexMask curve_selection,
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const T &value,
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MutableSpan<T> dst)
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{
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fill_points(curves, curve_selection, &value, dst);
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}
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/**
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* Copy only the information on the point domain, but not the offsets or any point attributes,
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* meant for operations that change the number of points but not the number of curves.
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* \warning The returned curves have invalid offsets!
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*/
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bke::CurvesGeometry copy_only_curve_domain(const bke::CurvesGeometry &src_curves);
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/**
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* Copy the size of every curve in #curve_ranges to the corresponding index in #counts.
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*/
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void fill_curve_counts(const bke::CurvesGeometry &curves,
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Span<IndexRange> curve_ranges,
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MutableSpan<int> counts);
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/**
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* Turn an array of sizes into the offset at each index including all previous sizes.
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*/
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void accumulate_counts_to_offsets(MutableSpan<int> counts_to_offsets, int start_offset = 0);
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IndexMask indices_for_type(const VArray<int8_t> &types,
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const std::array<int, CURVE_TYPES_NUM> &type_counts,
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const CurveType type,
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const IndexMask selection,
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Vector<int64_t> &r_indices);
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void foreach_curve_by_type(const VArray<int8_t> &types,
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const std::array<int, CURVE_TYPES_NUM> &type_counts,
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IndexMask selection,
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FunctionRef<void(IndexMask)> catmull_rom_fn,
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FunctionRef<void(IndexMask)> poly_fn,
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FunctionRef<void(IndexMask)> bezier_fn,
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FunctionRef<void(IndexMask)> nurbs_fn);
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} // namespace blender::bke::curves
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