void FPSCamera::LookAt(float3 posCamera, float3 posTarget)
{
m_pos = posCamera;
setTranslation(&m_viewToWorld, m_pos);
// Calculate angles to look at posTarget
float3 vecToTarget = posTarget - posCamera;
ASSERT_WARN(!all(isnear(vecToTarget, 0.0f)));
vecToTarget = normalize(vecToTarget);
m_yaw = atan2f(-vecToTarget.z, vecToTarget.x);
m_pitch = asinf(vecToTarget.y);
// Update matrices
UpdateOrientation();
UpdateWorldToClip();
}
void MayaCamera::LookAt(float3 posCamera, float3 posTarget)
{
m_posTarget = posTarget;
m_pos = posCamera;
// Calculate angles to look at posTarget
float3 vecToTarget = posTarget - posCamera;
ASSERT_WARN(!all(isnear(vecToTarget, 0.0f)));
m_radius = length(vecToTarget);
vecToTarget /= m_radius;
m_yaw = atan2f(-vecToTarget.z, vecToTarget.x);
m_pitch = asinf(vecToTarget.y);
// Update matrices
UpdateOrientation();
m_pos = m_posTarget + m_radius * m_viewToWorld[2].xyz;
setTranslation(&m_viewToWorld, m_pos);
UpdateWorldToClip();
}
void QGraphicsItemResizable::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
ispressed = true;
if (select)
select = false;
else
select = true;
if (select)
grabKeyboard();
else
ungrabKeyboard();
first = event->scenePos();// prendo la posizione
isResize = isnear(first);// vedo se è in basso a destra
if (isResize)
QApplication::setOverrideCursor(QCursor(Qt::SizeFDiagCursor));// setto il cursore di resize
else
QApplication::setOverrideCursor(QCursor(Qt::DragMoveCursor));// setto il cursore di spostamento
prepareGeometryChange();
update(boundingRect());
}
