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#ifndef VERTEXINDEXER_P_H
#define VERTEXINDEXER_P_H
#include "qdatavis3dglobal.h"
#include <QVector>
#include <QVector2D>
#include <QVector3D>
QTCOMMERCIALDATAVIS3D_BEGIN_NAMESPACE
class VertexIndexer
{
public:
struct PackedVertex {
QVector3D position;
QVector2D uv;
QVector3D normal;
bool operator<(const PackedVertex that) const {
return memcmp((void*)this, (void*)&that, sizeof(PackedVertex)) > 0;
}
};
static void indexVBO(QVector<QVector3D> &in_vertices
, QVector<QVector2D> &in_uvs
, QVector<QVector3D> &in_normals
, QVector<unsigned short> &out_indices
, QVector<QVector3D> &out_vertices
, QVector<QVector2D> &out_uvs
, QVector<QVector3D> &out_normals);
static void indexVBO_TBN(QVector<QVector3D> &in_vertices
, QVector<QVector2D> &in_uvs
, QVector<QVector3D> &in_normals
, QVector<QVector3D> &in_tangents
, QVector<QVector3D> &in_bitangents
, QVector<unsigned short> &out_indices
, QVector<QVector3D> &out_vertices
, QVector<QVector2D> &out_uvs
, QVector<QVector3D> &out_normals
, QVector<QVector3D> &out_tangents
, QVector<QVector3D> &out_bitangents);
private:
static bool is_near(float v1, float v2);
static bool getSimilarVertexIndex(QVector3D &in_vertex
, QVector2D &in_uv
, QVector3D &in_normal
, QVector<QVector3D> &out_vertices
, QVector<QVector2D> &out_uvs
, QVector<QVector3D> &out_normals
, unsigned short &result);
static bool getSimilarVertexIndex_fast(PackedVertex &packed
, QMap<PackedVertex, unsigned short> &VertexToOutIndex
, unsigned short &result);
};
QTCOMMERCIALDATAVIS3D_END_NAMESPACE
#endif
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