void FirstPersonNavigation::mouseMoveEvent(tgt::MouseEvent* mouseEve){
tgt::ivec2 newMouse = tgt::ivec2(mouseEve->x(), mouseEve->y());
if ((mouseEve->button() == buttonRotateUpAndStrafe_)){
if (lastMousePosition_.x != newMouse.x)
rollCameraAroundUp(-computeRotationAngle(lastMousePosition_.x, newMouse.x));
if (lastMousePosition_.y != newMouse.y)
rollCameraAroundStrafe(-computeRotationAngle(lastMousePosition_.y, newMouse.y));
}
else if (mouseEve->button() == buttonRotateLook_)
if (lastMousePosition_.x != newMouse.x)
rollCameraAroundLook(computeRotationAngle(lastMousePosition_.x, newMouse.x));
lastMousePosition_ = newMouse;
// consider movement for simultaneous use of mouse and keyboard
move();
mouseEve->accept();
}
/**
* @brief Computes and applies the rotation transformations to the trackball given new position.
* @param pos New mouse position in normalized trackball system
*/
void rotateCamera (const Eigen::Vector2f& pos)
{
Eigen::Vector3f normalized_pos = computeSpherePosition(normalizePosition(pos));
if (!rotating)
{
rotating = true;
initialPosition = normalized_pos;
}
else if ( pos != initialPosition.head(2))
{
finalPosition = normalized_pos;
computeRotationAngle();
updateViewMatrix();
initialPosition = finalPosition;
}
}