1 files changed, 26 insertions, 10 deletions

diff --git a/modules/bullet/rigid_body_bullet.cpp b/modules/bullet/rigid_body_bullet.cpp
index 9c0e802be5..2d0e74eb6f 100644
--- a/modules/bullet/rigid_body_bullet.cpp
+++ b/modules/bullet/rigid_body_bullet.cpp
@@ -279,7 +279,7 @@ RigidBodyBullet::RigidBodyBullet() :
 
 	// Initial properties
 	const btVector3 localInertia(0, 0, 0);
-	btRigidBody::btRigidBodyConstructionInfo cInfo(mass, godotMotionState, compoundShape, localInertia);
+	btRigidBody::btRigidBodyConstructionInfo cInfo(mass, godotMotionState, BulletPhysicsServer::get_empty_shape(), localInertia);
 
 	btBody = bulletnew(btRigidBody(cInfo));
 	setupBulletCollisionObject(btBody);
@@ -314,10 +314,19 @@ void RigidBodyBullet::destroy_kinematic_utilities() {
 	}
 }
 
+void RigidBodyBullet::main_shape_resetted() {
+	if (get_main_shape())
+		btBody->setCollisionShape(get_main_shape());
+	else
+		btBody->setCollisionShape(BulletPhysicsServer::get_empty_shape());
+	set_continuous_collision_detection(is_continuous_collision_detection_enabled()); // Reset
+}
+
 void RigidBodyBullet::reload_body() {
 	if (space) {
 		space->remove_rigid_body(this);
-		space->add_rigid_body(this);
+		if (get_main_shape())
+			space->add_rigid_body(this);
 	}
 }
 
@@ -711,15 +720,19 @@ void RigidBodyBullet::set_continuous_collision_detection(bool p_enable) {
 	if (p_enable) {
 		// This threshold enable CCD if the object moves more than
 		// 1 meter in one simulation frame
-		btBody->setCcdMotionThreshold(1);
+		btBody->setCcdMotionThreshold(0.1);
 
 		/// Calculate using the rule writte below the CCD swept sphere radius
 		///     CCD works on an embedded sphere of radius, make sure this radius
 		///     is embedded inside the convex objects, preferably smaller:
 		///     for an object of dimensions 1 meter, try 0.2
-		btVector3 center;
 		btScalar radius;
-		btBody->getCollisionShape()->getBoundingSphere(center, radius);
+		if (btBody->getCollisionShape()) {
+			btVector3 center;
+			btBody->getCollisionShape()->getBoundingSphere(center, radius);
+		} else {
+			radius = 0;
+		}
 		btBody->setCcdSweptSphereRadius(radius * 0.2);
 	} else {
 		btBody->setCcdMotionThreshold(0.);
@@ -728,7 +741,7 @@ void RigidBodyBullet::set_continuous_collision_detection(bool p_enable) {
 }
 
 bool RigidBodyBullet::is_continuous_collision_detection_enabled() const {
-	return 0. != btBody->getCcdMotionThreshold();
+	return 0. < btBody->getCcdMotionThreshold();
 }
 
 void RigidBodyBullet::set_linear_velocity(const Vector3 &p_velocity) {
@@ -783,9 +796,11 @@ void RigidBodyBullet::on_shapes_changed() {
 	const btScalar invMass = btBody->getInvMass();
 	const btScalar mass = invMass == 0 ? 0 : 1 / invMass;
 
-	btVector3 inertia;
-	btBody->getCollisionShape()->calculateLocalInertia(mass, inertia);
-	btBody->setMassProps(mass, inertia);
+	if (mainShape) {
+		btVector3 inertia;
+		mainShape->calculateLocalInertia(mass, inertia);
+		btBody->setMassProps(mass, inertia);
+	}
 	btBody->updateInertiaTensor();
 
 	reload_kinematic_shapes();
@@ -986,7 +1001,8 @@ void RigidBodyBullet::_internal_set_mass(real_t p_mass) {
 			return;
 
 		m_isStatic = false;
-		compoundShape->calculateLocalInertia(p_mass, localInertia);
+		if (mainShape)
+			mainShape->calculateLocalInertia(p_mass, localInertia);
 
 		if (PhysicsServer::BODY_MODE_RIGID == mode) {