Jacques Lucke
2ffd08e952
Previously, the lifetimes of anonymous attributes were determined by reference counts which were non-deterministic when multiple threads are used. Now the lifetimes of anonymous attributes are handled more explicitly and deterministically. This is a prerequisite for any kind of caching, because caching the output of nodes that do things non-deterministically and have "invisible inputs" (reference counts) doesn't really work. For more details for how deterministic lifetimes are achieved, see D16858. No functional changes are expected. Small performance changes are expected as well (within few percent, anything larger regressions should be reported as bugs). Differential Revision: https://developer.blender.org/D16858
49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include "FN_field.hh"
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#include "BKE_anonymous_attribute_id.hh"
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#include "BKE_curves.hh"
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namespace blender::geometry {
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using bke::CurvesGeometry;
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struct ResampleCurvesOutputAttributeIDs {
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bke::AttributeIDRef tangent_id;
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bke::AttributeIDRef normal_id;
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};
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/**
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* Create new curves where the selected curves have been resampled with a number of uniform-length
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* samples defined by the count field. Interpolate attributes to the result, with an accuracy that
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* depends on the curve's resolution parameter.
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*
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* \note The values provided by the #count_field are clamped to 1 or greater.
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*/
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CurvesGeometry resample_to_count(const CurvesGeometry &src_curves,
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const fn::Field<bool> &selection_field,
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const fn::Field<int> &count_field,
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const ResampleCurvesOutputAttributeIDs &output_ids = {});
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/**
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* Create new curves resampled to make each segment have the length specified by the
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* #segment_length field input, rounded to make the length of each segment the same.
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* The accuracy will depend on the curve's resolution parameter.
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*/
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CurvesGeometry resample_to_length(const CurvesGeometry &src_curves,
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const fn::Field<bool> &selection_field,
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const fn::Field<float> &segment_length_field,
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const ResampleCurvesOutputAttributeIDs &output_ids = {});
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/**
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* Evaluate each selected curve to its implicit evaluated points.
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*/
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CurvesGeometry resample_to_evaluated(const CurvesGeometry &src_curves,
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const fn::Field<bool> &selection_field,
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const ResampleCurvesOutputAttributeIDs &output_ids = {});
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} // namespace blender::geometry
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