bool pre(const scene::Path& path, scene::Instance& instance) const
{
if(path.top().get().visible())
{
BrushInstance* brush = Instance_getBrush(instance);
if(brush != 0)
{
m_test.BeginMesh(brush->localToWorld());
for(Brush::const_iterator i = brush->getBrush().begin(); i != brush->getBrush().end(); ++i)
{
Face_getClosest(*(*i), m_test, m_bestIntersection, m_closestFace);
}
}
else
{
SelectionTestable* selectionTestable = Instance_getSelectionTestable(instance);
if(selectionTestable)
{
bool occluded;
OccludeSelector selector(m_bestIntersection, occluded);
selectionTestable->testSelect(selector, m_test);
if(occluded)
{
m_closestFace = 0;
}
}
}
}
return true;
}
bool ClosestTexturableFinder::pre (const scene::Path& path, scene::Instance& instance) const
{
// Check if the node is filtered
if (path.top().get().visible()) {
// Test the instance for a brush
BrushInstance* brush = Instance_getBrush(instance);
if (brush != NULL) {
// Construct the selectiontest
_selectionTest.BeginMesh(brush->localToWorld());
// Cycle through all the faces
for (Brush::const_iterator i = brush->getBrush().begin(); i != brush->getBrush().end(); i++) {
// Test the face for selection
SelectionIntersection intersection;
(*i)->testSelect(_selectionTest, intersection);
// Any intersection found / is it better than the previous one?
if (intersection.valid() && SelectionIntersection_closer(intersection, _bestIntersection)) {
// Yes, store this as new best intersection
_bestIntersection = intersection;
// Save the face and the parent brush
_texturable.face = (*i);
_texturable.brush = &brush->getBrush();
}
}
} else {
// No brush, test for a patch
SelectionTestable* selectionTestable = Instance_getSelectionTestable(instance);
if (selectionTestable != NULL) {
bool occluded;
OccludeSelector selector(_bestIntersection, occluded);
selectionTestable->testSelect(selector, _selectionTest);
if (occluded) {
_texturable = Texturable();
}
}
}
}
return true;
}
// The visitor function
bool pre (const scene::Path& path, scene::Instance& instance) const
{
// Check if the node is filtered
if (path.top().get().visible()) {
SelectionTestable* selectionTestable = Instance_getSelectionTestable(instance);
if (selectionTestable != NULL) {
bool occluded;
OccludeSelector selector(_bestIntersection, occluded);
selectionTestable->testSelect(selector, _selectionTest);
if (occluded) {
_instance = &instance;
}
}
}
return true;
}
