blob: d392b65eaf46d80f38ae1b95d4a9119032363ae7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
#include <optional>
#include "BLI_math_vector.hh"
#include "BLI_span.hh"
#include "DNA_meshdata_types.h"
namespace blender::geometry {
/**
* Can find the polygon/triangle that maps to a specific uv coordinate.
*
* \note this uses a trivial implementation currently that has to be replaced.
*/
class ReverseUVSampler {
private:
const Span<float2> uv_map_;
const Span<MLoopTri> looptris_;
public:
ReverseUVSampler(const Span<float2> uv_map, const Span<MLoopTri> looptris);
enum class ResultType {
None,
Ok,
Multiple,
};
struct Result {
ResultType type = ResultType::None;
const MLoopTri *looptri = nullptr;
float3 bary_weights;
};
Result sample(const float2 &query_uv) const;
};
} // namespace blender::geometry
|
