59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup bke
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "BLI_math_matrix.hh"
|
|
#include "BLI_span.hh"
|
|
|
|
struct Depsgraph;
|
|
struct Object;
|
|
|
|
namespace blender::bke::crazyspace {
|
|
|
|
/**
|
|
* Contains information about how points have been deformed during evaluation.
|
|
* This allows mapping edits on evaluated data back to original data in some cases.
|
|
*/
|
|
struct GeometryDeformation {
|
|
/**
|
|
* Positions of the deformed points. This may also point to the original position if no
|
|
* deformation data is available.
|
|
*/
|
|
Span<float3> positions;
|
|
/**
|
|
* Matrices that transform point translations on original data into corresponding translations in
|
|
* evaluated data. This may be empty if not available.
|
|
*/
|
|
Span<float3x3> deform_mats;
|
|
|
|
float3 translation_from_deformed_to_original(const int position_i,
|
|
const float3 &translation) const
|
|
{
|
|
if (this->deform_mats.is_empty()) {
|
|
return translation;
|
|
}
|
|
const float3x3 &deform_mat = this->deform_mats[position_i];
|
|
return math::transform_point(math::invert(deform_mat), translation);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* During evaluation of the object, deformation data may have been generated for this object. This
|
|
* function either retrieves the deformation data from the evaluated object, or falls back to
|
|
* returning the original data.
|
|
*/
|
|
GeometryDeformation get_evaluated_curves_deformation(const Object *ob_eval, const Object &ob_orig);
|
|
GeometryDeformation get_evaluated_curves_deformation(const Depsgraph &depsgraph,
|
|
const Object &ob_orig);
|
|
GeometryDeformation get_evaluated_grease_pencil_drawing_deformation(const Object *ob_eval,
|
|
const Object &ob_orig,
|
|
int drawing_index);
|
|
|
|
} // namespace blender::bke::crazyspace
|