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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "qcollisiondebugmeshbuilder_p.h"
QT_BEGIN_NAMESPACE
QCollisionDebugMeshBuilder::QCollisionDebugMeshBuilder() { }
void QCollisionDebugMeshBuilder::reset()
{
m_vertices.clear();
m_normals.clear();
}
void QCollisionDebugMeshBuilder::addLine(const QVector3D &start, const QVector3D &end,
const QVector3D &normal)
{
m_vertices.append(start);
m_vertices.append(end);
m_normals.append(normal);
}
QByteArray QCollisionDebugMeshBuilder::generateVertexArray()
{
QByteArray output;
const int size = m_normals.count();
output.resize(4 * 4 * sizeof(float) * size);
float *data = reinterpret_cast<float *>(output.data());
for (int i = 0; i < size; ++i) {
const QVector3D &start = m_vertices[i * 2];
const QVector3D &end = m_vertices[i * 2 + 1];
const QVector3D &normal = m_normals[i];
data[0] = start.x();
data[1] = start.y();
data[2] = start.z();
data[4] = 1.0f;
data[5] = normal.x();
data[6] = normal.y();
data[7] = normal.z();
data[8] = 0.0f;
data += 8;
data[0] = end.x();
data[1] = end.y();
data[2] = end.z();
data[4] = 1.0f;
data[5] = normal.x();
data[6] = normal.y();
data[7] = normal.z();
data[8] = 0.0f;
data += 8;
}
return output;
}
QT_END_NAMESPACE
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