5 files changed, 56 insertions, 4 deletions
diff --git a/servers/visual/visual_server_canvas.cpp b/servers/visual/visual_server_canvas.cpp
index 85dcaa6b03..af6e3db149 100644
--- a/servers/visual/visual_server_canvas.cpp
+++ b/servers/visual/visual_server_canvas.cpp
@@ -319,6 +319,19 @@ void VisualServerCanvas::canvas_set_modulate(RID p_canvas, const Color &p_color)
 	canvas->modulate = p_color;
 }
 
+void VisualServerCanvas::canvas_set_disable_scale(bool p_disable) {
+	disable_scale = p_disable;
+}
+
+void VisualServerCanvas::canvas_set_parent(RID p_canvas, RID p_parent, float p_scale) {
+
+	Canvas *canvas = canvas_owner.get(p_canvas);
+	ERR_FAIL_COND(!canvas);
+
+	canvas->parent = p_parent;
+	canvas->parent_scale = p_scale;
+}
+
 RID VisualServerCanvas::canvas_item_create() {
 
 	Item *canvas_item = memnew(Item);
@@ -1434,4 +1447,5 @@ bool VisualServerCanvas::free(RID p_rid) {
 }
 
 VisualServerCanvas::VisualServerCanvas() {
+	disable_scale = false;
 }
diff --git a/servers/visual/visual_server_canvas.h b/servers/visual/visual_server_canvas.h
index 7d788cbe14..8162085ced 100644
--- a/servers/visual/visual_server_canvas.h
+++ b/servers/visual/visual_server_canvas.h
@@ -126,6 +126,8 @@ public:
 		bool children_order_dirty;
 		Vector<ChildItem> child_items;
 		Color modulate;
+		RID parent;
+		float parent_scale;
 
 		int find_item(Item *p_item) {
 			for (int i = 0; i < child_items.size(); i++) {
@@ -143,13 +145,16 @@ public:
 		Canvas() {
 			modulate = Color(1, 1, 1, 1);
 			children_order_dirty = true;
+			parent_scale = 1.0;
 		}
 	};
 
-	RID_Owner<Canvas> canvas_owner;
+	mutable RID_Owner<Canvas> canvas_owner;
 	RID_Owner<Item> canvas_item_owner;
 	RID_Owner<RasterizerCanvas::Light> canvas_light_owner;
 
+	bool disable_scale;
+
 private:
 	void _render_canvas_item_tree(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, RasterizerCanvas::Light *p_lights);
 	void _render_canvas_item(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, int p_z, RasterizerCanvas::Item **z_list, RasterizerCanvas::Item **z_last_list, Item *p_canvas_clip, Item *p_material_owner);
@@ -161,6 +166,8 @@ public:
 	RID canvas_create();
 	void canvas_set_item_mirroring(RID p_canvas, RID p_item, const Point2 &p_mirroring);
 	void canvas_set_modulate(RID p_canvas, const Color &p_color);
+	void canvas_set_parent(RID p_canvas, RID p_parent, float p_scale);
+	void canvas_set_disable_scale(bool p_disable);
 
 	RID canvas_item_create();
 	void canvas_item_set_parent(RID p_item, RID p_parent);
diff --git a/servers/visual/visual_server_raster.h b/servers/visual/visual_server_raster.h
index a1204c7573..8ce25ba906 100644
--- a/servers/visual/visual_server_raster.h
+++ b/servers/visual/visual_server_raster.h
@@ -569,6 +569,8 @@ public:
 	BIND0R(RID, canvas_create)
 	BIND3(canvas_set_item_mirroring, RID, RID, const Point2 &)
 	BIND2(canvas_set_modulate, RID, const Color &)
+	BIND3(canvas_set_parent, RID, RID, float)
+	BIND1(canvas_set_disable_scale, bool)
 
 	BIND0R(RID, canvas_item_create)
 	BIND2(canvas_item_set_parent, RID, RID)
diff --git a/servers/visual/visual_server_viewport.cpp b/servers/visual/visual_server_viewport.cpp
index 2c6709662f..79fdefe5c1 100644
--- a/servers/visual/visual_server_viewport.cpp
+++ b/servers/visual/visual_server_viewport.cpp
@@ -35,6 +35,33 @@
 #include "visual_server_globals.h"
 #include "visual_server_scene.h"
 
+static Transform2D _canvas_get_transform(VisualServerViewport::Viewport *p_viewport, VisualServerCanvas::Canvas *p_canvas, VisualServerViewport::Viewport::CanvasData *p_canvas_data, const Vector2 &p_vp_size) {
+
+	Transform2D xf = p_viewport->global_transform;
+
+	float scale = 1.0;
+	if (p_viewport->canvas_map.has(p_canvas->parent)) {
+		xf = xf * p_viewport->canvas_map[p_canvas->parent].transform;
+		scale = p_canvas->parent_scale;
+	}
+
+	xf = xf * p_canvas_data->transform;
+
+	if (scale != 1.0 && !VSG::canvas->disable_scale) {
+		Vector2 pivot = p_vp_size * 0.5;
+		Transform2D xfpivot;
+		xfpivot.set_origin(pivot);
+		Transform2D xfscale;
+		xfscale.scale(Vector2(scale, scale));
+
+		xf = xfpivot.affine_inverse() * xf;
+		xf = xfscale * xf;
+		xf = xfpivot * xf;
+	}
+
+	return xf;
+}
+
 void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::Eyes p_eye) {
 
 	/* Camera should always be BEFORE any other 3D */
@@ -86,10 +113,10 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 
 		for (Map<RID, Viewport::CanvasData>::Element *E = p_viewport->canvas_map.front(); E; E = E->next()) {
 
-			Transform2D xf = p_viewport->global_transform * E->get().transform;
-
 			VisualServerCanvas::Canvas *canvas = static_cast<VisualServerCanvas::Canvas *>(E->get().canvas);
 
+			Transform2D xf = _canvas_get_transform(p_viewport, canvas, &E->get(), clip_rect.size);
+
 			//find lights in canvas
 
 			for (Set<RasterizerCanvas::Light *>::Element *F = canvas->lights.front(); F; F = F->next()) {
@@ -193,7 +220,7 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 
 			VisualServerCanvas::Canvas *canvas = static_cast<VisualServerCanvas::Canvas *>(E->get()->canvas);
 
-			Transform2D xform = p_viewport->global_transform * E->get()->transform;
+			Transform2D xform = _canvas_get_transform(p_viewport, canvas, E->get(), clip_rect.size);
 
 			RasterizerCanvas::Light *canvas_lights = NULL;
 
diff --git a/servers/visual/visual_server_wrap_mt.h b/servers/visual/visual_server_wrap_mt.h
index c6da6799a5..efe251e9de 100644
--- a/servers/visual/visual_server_wrap_mt.h
+++ b/servers/visual/visual_server_wrap_mt.h
@@ -487,6 +487,8 @@ public:
 	FUNCRID(canvas)
 	FUNC3(canvas_set_item_mirroring, RID, RID, const Point2 &)
 	FUNC2(canvas_set_modulate, RID, const Color &)
+	FUNC3(canvas_set_parent, RID, RID, float)
+	FUNC1(canvas_set_disable_scale, bool)
 
 	FUNCRID(canvas_item)
 	FUNC2(canvas_item_set_parent, RID, RID)