void QModelNode::activate()
{
float minX, minY, minZ, maxX, maxY, maxZ;
h3dGetNodeAABB(m_hordeID, &minX, &minY, &minZ, &maxX, &maxY, &maxZ);
unsigned int cameraID = HordeSceneEditor::instance()->glContext()->activeCam();
float leftPlane = h3dGetNodeParamF(cameraID, H3DCamera::LeftPlaneF, 0 );
float rightPlane = h3dGetNodeParamF(cameraID, H3DCamera::RightPlaneF, 0);
float bottomPlane = h3dGetNodeParamF(cameraID, H3DCamera::BottomPlaneF, 0);
float topPlane = h3dGetNodeParamF(cameraID, H3DCamera::TopPlaneF, 0);
float nearPlane = h3dGetNodeParamF(cameraID, H3DCamera::NearPlaneF, 0);
const float* camera = 0;
H3DNode parentNode = h3dGetNodeParent(cameraID);
h3dGetNodeTransMats(parentNode, 0, &camera);
if ( !camera ) return;
/**
* (maxX - minX) = width of the bounding box
* rightPlane / (rightPlane - leftPlane) = right fraction of the viewing frustum
*/
float offsetX = (maxX - minX) * rightPlane / (rightPlane - leftPlane);
float offsetY = (maxY - minY) * topPlane / (topPlane - bottomPlane);
QMatrix4f newCamTrans = QMatrix4f::TransMat(maxX - offsetX, maxY - offsetY, maxZ);
newCamTrans.translate(0, 0, qMax(nearPlane * offsetX / rightPlane, nearPlane * offsetY / topPlane));
h3dSetNodeTransMat(cameraID, (QMatrix4f(camera).inverted() * newCamTrans).x);
}
void SceneGraphComponent::getBoundingBox(float* minX, float* minY, float* minZ, float* maxX, float* maxY, float* maxZ)
{
h3dGetNodeAABB(hordeId(), minX, minY, minZ, maxX, maxY, maxZ);
}
