void GLWidget::loadHeightMap(QString filepath, QVector3D center, QVector3D size, QVector2D maxUV, QOpenGLTexture* texture)
{
    QImage img;
    img.load(filepath);

    float boxSizeX = size.x()/img.width();
    float boxSizeZ = size.z()/img.height();

    float offsetX = -boxSizeX * img.width()/2 + center.x();
    float offsetZ = -boxSizeZ * img.height()/2;

    float minY = center.y() - size.y() / 2;
    float maxY = center.y() + size.y() / 2;

    int groupSize = (img.width() - 1) * (img.height() - 1) * 2;

    for(int i = 0 ; i < img.height() - 1 ; i++)
    {
        for(int j = 0 ; j < img.width() - 1 ; j++)
        {
            float X1 = offsetX + boxSizeX * i;
            float X2 = offsetX + boxSizeX * (i+1);
            float Z1 = offsetZ + boxSizeZ * j;
            float Z2 = offsetZ + boxSizeZ * (j+1);

            float Y00 = QColor(img.pixel(j, i)).red() / 255.0f * (maxY - minY) + minY;
            float Y01 = QColor(img.pixel(j+1, i)).red() / 255.0f * (maxY - minY) + minY;
            float Y10 = QColor(img.pixel(j, i+1)).red() / 255.0f * (maxY - minY) + minY;
            float Y11 = QColor(img.pixel(j+1, i+1)).red() / 255.0f * (maxY - minY) + minY;

            QVector2D texCoord00(maxUV.x() * i / img.width(), maxUV.y() * j / img.height());
            QVector2D texCoord01(maxUV.x() * (i+1) / img.width(), maxUV.y() * j / img.height());
            QVector2D texCoord10(maxUV.x() * i / img.width(), maxUV.y() * (j+1) / img.height());
            QVector2D texCoord11(maxUV.x() * (i+1) / img.width(), maxUV.y() * (j+1) / img.height());

            addTriangleCollider(QVector3D(X1, Y00, Z1), QVector3D(X1, Y01, Z2), QVector3D(X2, Y11, Z2), groupSize,
                                texCoord00, texCoord10, texCoord11, texture);

            addTriangleCollider(QVector3D(X2, Y11, Z2), QVector3D(X2, Y10, Z1), QVector3D(X1, Y00, Z1), groupSize,
                                texCoord11, texCoord01, texCoord00, texture);
        }
    }
}