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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2018 Blender Foundation. All rights reserved. */
/** \file
* \ingroup bke
*/
#pragma once
#include "BLI_sys_types.h"
#ifdef __cplusplus
extern "C" {
#endif
struct Mesh;
struct MEdge;
struct Subdiv;
typedef struct SubdivToMeshSettings {
/* Resolution at which regular ptex (created for quad polygon) 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 polygon) will have resolution of
* `resolution - 1`.
*/
int resolution;
/* When true, only edges emitted from coarse ones will be displayed. */
bool use_optimal_display;
} SubdivToMeshSettings;
/* Create real hi-res mesh from subdivision, all geometry is "real". */
struct Mesh *BKE_subdiv_to_mesh(struct Subdiv *subdiv,
const SubdivToMeshSettings *settings,
const struct 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. */
void BKE_subdiv_mesh_interpolate_position_on_edge(const struct Mesh *coarse_mesh,
const struct MEdge *coarse_edge,
bool is_simple,
float u,
float pos_r[3]);
#ifdef __cplusplus
}
#endif
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