1e4764a9a5
- Return evaluated points as function return value. Used in cases when only limit or final point is requested, without partial derivatives. - Re-order function argument list and use default argument values to simplify usage in the simple/typical cases. No functional changes expected.
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/* SPDX-FileCopyrightText: 2018 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup bke
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "BLI_math_vector_types.hh"
|
|
#include "BLI_offset_indices.hh"
|
|
|
|
struct Mesh;
|
|
|
|
namespace blender::bke::subdiv {
|
|
|
|
struct Subdiv;
|
|
|
|
struct ToMeshSettings {
|
|
/**
|
|
* Resolution at which regular PTEX (created for quad face) are being
|
|
* evaluated. This defines how many vertices final mesh will have: every
|
|
* regular PTEX has resolution^2 vertices. Special (irregular, or PTEX
|
|
* created for a corner of non-quad face) will have resolution of
|
|
* `resolution - 1`.
|
|
*/
|
|
int resolution = -1;
|
|
/** When true, only edges emitted from coarse ones will be displayed. */
|
|
bool use_optimal_display = false;
|
|
};
|
|
|
|
/** Create real hi-res mesh from subdivision, all geometry is "real". */
|
|
Mesh *subdiv_to_mesh(Subdiv *subdiv, const ToMeshSettings *settings, const Mesh *coarse_mesh);
|
|
|
|
/**
|
|
* Interpolate a position along the `coarse_edge` at the relative `u` coordinate.
|
|
* If `is_simple` is false, this will perform a B-Spline interpolation using the edge neighbors,
|
|
* otherwise a linear interpolation will be done base on the edge vertices.
|
|
*/
|
|
float3 mesh_interpolate_position_on_edge(Span<float3> coarse_positions,
|
|
Span<int2> coarse_edges,
|
|
GroupedSpan<int> vert_to_edge_map,
|
|
int coarse_edge_index,
|
|
bool is_simple,
|
|
float u);
|
|
|
|
/**
|
|
* Calculate positions position of the given mesh vertices at the limit surface of the mesh.
|
|
*
|
|
* The limit_positions is to be sized at exactly the number of the base mesh vertices.
|
|
*/
|
|
void calculate_limit_positions(Mesh *mesh, MutableSpan<float3> limit_positions);
|
|
|
|
} // namespace blender::bke::subdiv
|