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fix clip plane to set_final() node

This commit is contained in:
David Rose 2007-08-23 18:24:45 +00:00
parent ff73e659db
commit 2c4f49004f
2 changed files with 14 additions and 10 deletions
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23
panda/src/pgraph/cullTraverserData.cxx
View File

@ -120,7 +120,7 @@ apply_transform_and_state(CullTraverser *trav,
if (clip_plane_cull) {
_cull_planes = _cull_planes->apply_state(trav, this,
_state->get_clip_plane(),
node_state->get_clip_plane(),
DCAST(ClipPlaneAttrib, off_clip_planes));
}
}
@ -187,6 +187,18 @@ is_in_view_impl() {
<< result << dec << "\n";
_cull_planes->write(pgraph_cat.spam(false));
}
if (_node_reader.is_final()) {
// Even though the node may be partially within the clip planes,
// do no more culling against them below this node.
_cull_planes = CullPlanes::make_empty();
if (pgraph_cat.is_spam()) {
pgraph_cat.spam()
<< _node_path << " is_final, cull planes disabled, state:\n";
_state->write(pgraph_cat.spam(false), 2);
}
}
if (result == BoundingVolume::IF_no_intersection) {
// No intersection at all. Cull.
@ -197,18 +209,9 @@ is_in_view_impl() {
// of the clip planes. The do_cull() call should therefore have
// removed all of the clip planes.
nassertr(_cull_planes->is_empty(), true);
} else {
// The node is partially within one or more clip planes.
if (_node_reader.is_final()) {
// Even though the node is only partially within the clip
// planes, stop culling against them.
_cull_planes = CullPlanes::make_empty();
}
}
}
return true;
}

1
panda/src/pgraph/geomNode.I
View File

@ -78,6 +78,7 @@ modify_geom(int n) {
CDWriter cdata(_cycler, true);
PT(GeomList) geoms = cdata->modify_geoms();
nassertr(n >= 0 && n < (int)geoms->size(), NULL);
mark_internal_bounds_stale();
return (*geoms)[n]._geom.get_write_pointer();
}