Implement Particle Trails

-Enable the trails and set the length in seconds
-Provide a mesh with a skeleton and a skin
-Or, alternatively use one of the built-in TubeTrailMesh/RibbonTrailMesh
-Works deterministically
-Fixed particle collisions (were broken)
-Not working in 2D yet (that will happen next)

1 files changed, 4 insertions, 1 deletions

diff --git a/editor/scene_tree_editor.cpp b/editor/scene_tree_editor.cpp
index b4f7eda391..f979f61196 100644
--- a/editor/scene_tree_editor.cpp
+++ b/editor/scene_tree_editor.cpp
@@ -665,7 +665,7 @@ void SceneTreeEditor::_notification(int p_what) {
 			get_tree()->connect("tree_process_mode_changed", callable_mp(this, &SceneTreeEditor::_tree_process_mode_changed));
 			get_tree()->connect("node_removed", callable_mp(this, &SceneTreeEditor::_node_removed));
 			get_tree()->connect("node_renamed", callable_mp(this, &SceneTreeEditor::_node_renamed));
-			get_tree()->connect("node_configuration_warning_changed", callable_mp(this, &SceneTreeEditor::_warning_changed));
+			get_tree()->connect("node_configuration_warning_changed", callable_mp(this, &SceneTreeEditor::_warning_changed), varray(), CONNECT_DEFERRED);
 
 			tree->connect("item_collapsed", callable_mp(this, &SceneTreeEditor::_cell_collapsed));
 
@@ -1102,6 +1102,9 @@ void SceneTreeEditor::_rmb_select(const Vector2 &p_pos) {
 	emit_signal("rmb_pressed", tree->get_screen_transform().xform(p_pos));
 }
 
+void SceneTreeEditor::update_warning() {
+	_warning_changed(nullptr);
+}
 void SceneTreeEditor::_warning_changed(Node *p_for_node) {
 	//should use a timer
 	update_timer->start();