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, 7 insertions, 0 deletions

diff --git a/scene/resources/mesh.cpp b/scene/resources/mesh.cpp
index f8e1ce6a61..d31dbc877b 100644
--- a/scene/resources/mesh.cpp
+++ b/scene/resources/mesh.cpp
@@ -579,6 +579,13 @@ Vector<Ref<Shape3D>> Mesh::convex_decompose() const {
 	return ret;
 }
 
+int Mesh::get_builtin_bind_pose_count() const {
+	return 0;
+}
+Transform Mesh::get_builtin_bind_pose(int p_index) const {
+	return Transform();
+}
+
 Mesh::Mesh() {
 }