3 files changed, 23 insertions, 22 deletions

diff --git a/servers/physics/shape_sw.cpp b/servers/physics/shape_sw.cpp
index 8a52f29729..f01caefdce 100644
--- a/servers/physics/shape_sw.cpp
+++ b/servers/physics/shape_sw.cpp
@@ -543,16 +543,6 @@ void CapsuleShapeSW::project_range(const Vector3 &p_normal, const Transform &p_t
 
 	r_max = p_normal.dot(p_transform.xform(n));
 	r_min = p_normal.dot(p_transform.xform(-n));
-	return;
-
-	n = p_transform.basis.xform(n);
-
-	real_t distance = p_normal.dot(p_transform.origin);
-	real_t length = Math::abs(p_normal.dot(n));
-	r_min = distance - length;
-	r_max = distance + length;
-
-	ERR_FAIL_COND(r_max < r_min);
 }
 
 Vector3 CapsuleShapeSW::get_support(const Vector3 &p_normal) const {
diff --git a/servers/physics_2d/collision_solver_2d_sat.cpp b/servers/physics_2d/collision_solver_2d_sat.cpp
index f4bff66389..9d75f71ff0 100644
--- a/servers/physics_2d/collision_solver_2d_sat.cpp
+++ b/servers/physics_2d/collision_solver_2d_sat.cpp
@@ -313,10 +313,12 @@ public:
 		if (best_axis == Vector2(0.0, 0.0))
 			return;
 
-		callback->collided = true;
+		if (callback) {
+			callback->collided = true;
 
-		if (!callback->callback)
-			return; //only collide, no callback
+			if (!callback->callback)
+				return; //only collide, no callback
+		}
 		static const int max_supports = 2;
 
 		Vector2 supports_A[max_supports];
@@ -354,12 +356,13 @@ public:
 				supports_B[i] += best_axis * margin_B;
 			}
 		}
+		if (callback) {
+			callback->normal = best_axis;
+			_generate_contacts_from_supports(supports_A, support_count_A, supports_B, support_count_B, callback);
 
-		callback->normal = best_axis;
-		_generate_contacts_from_supports(supports_A, support_count_A, supports_B, support_count_B, callback);
-
-		if (callback && callback->sep_axis && *callback->sep_axis != Vector2())
-			*callback->sep_axis = Vector2(); //invalidate previous axis (no test)
+			if (callback->sep_axis && *callback->sep_axis != Vector2())
+				*callback->sep_axis = Vector2(); //invalidate previous axis (no test)
+		}
 	}
 
 	_FORCE_INLINE_ SeparatorAxisTest2D(const ShapeA *p_shape_A, const Transform2D &p_transform_a, const ShapeB *p_shape_B, const Transform2D &p_transform_b, _CollectorCallback2D *p_collector, const Vector2 &p_motion_A = Vector2(), const Vector2 &p_motion_B = Vector2(), real_t p_margin_A = 0, real_t p_margin_B = 0) {
diff --git a/servers/visual/visual_server_viewport.cpp b/servers/visual/visual_server_viewport.cpp
index f8ed035766..86c5227f30 100644
--- a/servers/visual/visual_server_viewport.cpp
+++ b/servers/visual/visual_server_viewport.cpp
@@ -63,7 +63,10 @@ static Transform2D _canvas_get_transform(VisualServerViewport::Viewport *p_viewp
 }
 
 void VisualServerViewport::_draw_3d(Viewport *p_viewport, ARVRInterface::Eyes p_eye) {
-	Ref<ARVRInterface> arvr_interface = ARVRServer::get_singleton()->get_primary_interface();
+	Ref<ARVRInterface> arvr_interface;
+	if (ARVRServer::get_singleton() != NULL) {
+		arvr_interface = ARVRServer::get_singleton()->get_primary_interface();
+	}
 
 	if (p_viewport->use_arvr && arvr_interface.is_valid()) {
 		VSG::scene->render_camera(arvr_interface, p_eye, p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
@@ -260,11 +263,16 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 }
 
 void VisualServerViewport::draw_viewports() {
+
 	// get our arvr interface in case we need it
-	Ref<ARVRInterface> arvr_interface = ARVRServer::get_singleton()->get_primary_interface();
+	Ref<ARVRInterface> arvr_interface;
 
-	// process all our active interfaces
-	ARVRServer::get_singleton()->_process();
+	if (ARVRServer::get_singleton() != NULL) {
+		arvr_interface = ARVRServer::get_singleton()->get_primary_interface();
+
+		// process all our active interfaces
+		ARVRServer::get_singleton()->_process();
+	}
 
 	if (Engine::get_singleton()->is_editor_hint()) {
 		clear_color = GLOBAL_GET("rendering/environment/default_clear_color");