Added polygon antialiasing, but it does not work on nvidia. Will have to try something else..

drivers/gles3/rasterizer_canvas_gles3.cpp

@@ -691,6 +691,13 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 					state.canvas_shader.set_uniform(CanvasShaderGLES3::COLOR_TEXPIXEL_SIZE, texpixel_size);
 				}
 				_draw_polygon(polygon->indices.ptr(), polygon->count, polygon->points.size(), polygon->points.ptr(), polygon->uvs.ptr(), polygon->colors.ptr(), polygon->colors.size() == 1);
+#ifdef GLES_OVER_GL
+				if (polygon->antialiased) {
+					glEnable(GL_LINE_SMOOTH);
+					_draw_generic(GL_LINE_LOOP, polygon->points.size(), polygon->points.ptr(), polygon->uvs.ptr(), polygon->colors.ptr(), polygon->colors.size() == 1);
+					glDisable(GL_LINE_SMOOTH);
+				}
+#endif
 
 			} break;
 			case Item::Command::TYPE_PARTICLES: {

scene/2d/canvas_item.cpp

@@ -734,7 +734,7 @@ void CanvasItem::draw_set_transform_matrix(const Transform2D &p_matrix) {
 	VisualServer::get_singleton()->canvas_item_add_set_transform(canvas_item, p_matrix);
 }
 
-void CanvasItem::draw_polygon(const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, Ref<Texture> p_texture, const Ref<Texture> &p_normal_map) {
+void CanvasItem::draw_polygon(const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, Ref<Texture> p_texture, const Ref<Texture> &p_normal_map, bool p_antialiased) {
 
 	if (!drawing) {
 		ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
@@ -744,10 +744,10 @@ void CanvasItem::draw_polygon(const Vector<Point2> &p_points, const Vector<Color
 	RID rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
 	RID rid_normal = p_normal_map.is_valid() ? p_normal_map->get_rid() : RID();
 
-	VisualServer::get_singleton()->canvas_item_add_polygon(canvas_item, p_points, p_colors, p_uvs, rid, rid_normal);
+	VisualServer::get_singleton()->canvas_item_add_polygon(canvas_item, p_points, p_colors, p_uvs, rid, rid_normal, p_antialiased);
 }
 
-void CanvasItem::draw_colored_polygon(const Vector<Point2> &p_points, const Color &p_color, const Vector<Point2> &p_uvs, Ref<Texture> p_texture, const Ref<Texture> &p_normal_map) {
+void CanvasItem::draw_colored_polygon(const Vector<Point2> &p_points, const Color &p_color, const Vector<Point2> &p_uvs, Ref<Texture> p_texture, const Ref<Texture> &p_normal_map, bool p_antialiased) {
 
 	if (!drawing) {
 		ERR_EXPLAIN("Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal.");
@@ -759,7 +759,7 @@ void CanvasItem::draw_colored_polygon(const Vector<Point2> &p_points, const Colo
 	RID rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
 	RID rid_normal = p_normal_map.is_valid() ? p_normal_map->get_rid() : RID();
 
-	VisualServer::get_singleton()->canvas_item_add_polygon(canvas_item, p_points, colors, p_uvs, rid, rid_normal);
+	VisualServer::get_singleton()->canvas_item_add_polygon(canvas_item, p_points, colors, p_uvs, rid, rid_normal, p_antialiased);
 }
 
 void CanvasItem::draw_string(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_text, const Color &p_modulate, int p_clip_w) {
@@ -985,8 +985,8 @@ void CanvasItem::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("draw_texture_rect_region", "texture", "rect", "src_rect", "modulate", "transpose", "normal_map", "clip_uv"), &CanvasItem::draw_texture_rect_region, DEFVAL(Color(1, 1, 1)), DEFVAL(false), DEFVAL(Variant()), DEFVAL(true));
 	ClassDB::bind_method(D_METHOD("draw_style_box", "style_box", "rect"), &CanvasItem::draw_style_box);
 	ClassDB::bind_method(D_METHOD("draw_primitive", "points", "colors", "uvs", "texture", "width", "normal_map"), &CanvasItem::draw_primitive, DEFVAL(Variant()), DEFVAL(1.0), DEFVAL(Variant()));
-	ClassDB::bind_method(D_METHOD("draw_polygon", "points", "colors", "uvs", "texture", "normal_map"), &CanvasItem::draw_polygon, DEFVAL(PoolVector2Array()), DEFVAL(Variant()), DEFVAL(Variant()));
-	ClassDB::bind_method(D_METHOD("draw_colored_polygon", "points", "color", "uvs", "texture", "normal_map"), &CanvasItem::draw_colored_polygon, DEFVAL(PoolVector2Array()), DEFVAL(Variant()), DEFVAL(Variant()));
+	ClassDB::bind_method(D_METHOD("draw_polygon", "points", "colors", "uvs", "texture", "normal_map", "antialiased"), &CanvasItem::draw_polygon, DEFVAL(PoolVector2Array()), DEFVAL(Variant()), DEFVAL(Variant()), DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("draw_colored_polygon", "points", "color", "uvs", "texture", "normal_map", "antialiased"), &CanvasItem::draw_colored_polygon, DEFVAL(PoolVector2Array()), DEFVAL(Variant()), DEFVAL(Variant()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("draw_string", "font", "pos", "text", "modulate", "clip_w"), &CanvasItem::draw_string, DEFVAL(Color(1, 1, 1)), DEFVAL(-1));
 	ClassDB::bind_method(D_METHOD("draw_char", "font", "pos", "char", "next", "modulate"), &CanvasItem::draw_char, DEFVAL(Color(1, 1, 1)));
 

scene/2d/canvas_item.h

@@ -251,8 +251,8 @@ public:
 	void draw_texture_rect_region(const Ref<Texture> &p_texture, const Rect2 &p_rect, const Rect2 &p_src_rect, const Color &p_modulate = Color(1, 1, 1), bool p_transpose = false, const Ref<Texture> &p_normal_map = Ref<Texture>(), bool p_clip_uv = true);
 	void draw_style_box(const Ref<StyleBox> &p_style_box, const Rect2 &p_rect);
 	void draw_primitive(const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, Ref<Texture> p_texture = Ref<Texture>(), float p_width = 1, const Ref<Texture> &p_normal_map = Ref<Texture>());
-	void draw_polygon(const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), Ref<Texture> p_texture = Ref<Texture>(), const Ref<Texture> &p_normal_map = Ref<Texture>());
-	void draw_colored_polygon(const Vector<Point2> &p_points, const Color &p_color, const Vector<Point2> &p_uvs = Vector<Point2>(), Ref<Texture> p_texture = Ref<Texture>(), const Ref<Texture> &p_normal_map = Ref<Texture>());
+	void draw_polygon(const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), Ref<Texture> p_texture = Ref<Texture>(), const Ref<Texture> &p_normal_map = Ref<Texture>(), bool p_antialiased = false);
+	void draw_colored_polygon(const Vector<Point2> &p_points, const Color &p_color, const Vector<Point2> &p_uvs = Vector<Point2>(), Ref<Texture> p_texture = Ref<Texture>(), const Ref<Texture> &p_normal_map = Ref<Texture>(), bool p_antialiased = false);
 
 	void draw_string(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_text, const Color &p_modulate = Color(1, 1, 1), int p_clip_w = -1);
 	float draw_char(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_char, const String &p_next = "", const Color &p_modulate = Color(1, 1, 1));

scene/2d/polygon_2d.cpp

@@ -176,9 +176,10 @@ void Polygon2D::_notification(int p_what) {
 				}
 			}
 
-			Vector<int> indices = Geometry::triangulate_polygon(points);
+			//			Vector<int> indices = Geometry::triangulate_polygon(points);
+			//			VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), indices, points, colors, uvs, texture.is_valid() ? texture->get_rid() : RID());
 
-			VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), indices, points, colors, uvs, texture.is_valid() ? texture->get_rid() : RID());
+			VS::get_singleton()->canvas_item_add_polygon(get_canvas_item(), points, colors, uvs, texture.is_valid() ? texture->get_rid() : RID(), RID(), antialiased);
 
 		} break;
 	}
@@ -294,6 +295,16 @@ bool Polygon2D::get_invert() const {
 	return invert;
 }
 
+void Polygon2D::set_antialiased(bool p_antialiased) {
+
+	antialiased = p_antialiased;
+	update();
+}
+bool Polygon2D::get_antialiased() const {
+
+	return antialiased;
+}
+
 void Polygon2D::set_invert_border(float p_invert_border) {
 
 	invert_border = p_invert_border;
@@ -348,6 +359,9 @@ void Polygon2D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_invert", "invert"), &Polygon2D::set_invert);
 	ClassDB::bind_method(D_METHOD("get_invert"), &Polygon2D::get_invert);
 
+	ClassDB::bind_method(D_METHOD("set_antialiased", "antialiased"), &Polygon2D::set_antialiased);
+	ClassDB::bind_method(D_METHOD("get_antialiased"), &Polygon2D::get_antialiased);
+
 	ClassDB::bind_method(D_METHOD("set_invert_border", "invert_border"), &Polygon2D::set_invert_border);
 	ClassDB::bind_method(D_METHOD("get_invert_border"), &Polygon2D::get_invert_border);
 
@@ -359,6 +373,7 @@ void Polygon2D::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_color", "get_color");
 	ADD_PROPERTY(PropertyInfo(Variant::POOL_COLOR_ARRAY, "vertex_colors"), "set_vertex_colors", "get_vertex_colors");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "offset"), "set_offset", "get_offset");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "antialiased"), "set_antialiased", "get_antialiased");
 	ADD_GROUP("Texture", "");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture", "get_texture");
 	ADD_GROUP("Texture", "texture_");
@@ -375,6 +390,7 @@ Polygon2D::Polygon2D() {
 
 	invert = 0;
 	invert_border = 100;
+	antialiased = false;
 	tex_rot = 0;
 	tex_tile = true;
 	tex_scale = Vector2(1, 1);

scene/2d/polygon_2d.h

@@ -47,6 +47,7 @@ class Polygon2D : public Node2D {
 	float tex_rot;
 	bool invert;
 	float invert_border;
+	bool antialiased;
 
 	Vector2 offset;
 	mutable bool rect_cache_dirty;
@@ -87,6 +88,9 @@ public:
 	void set_invert(bool p_invert);
 	bool get_invert() const;
 
+	void set_antialiased(bool p_antialiased);
+	bool get_antialiased() const;
+
 	void set_invert_border(float p_invert_border);
 	float get_invert_border() const;
 

servers/visual/rasterizer.h

@@ -712,6 +712,7 @@ public:
 			RID texture;
 			RID normal_map;
 			int count;
+			bool antialiased;
 
 			CommandPolygon() {
 				type = TYPE_POLYGON;

servers/visual/visual_server_canvas.cpp

@@ -632,7 +632,7 @@ void VisualServerCanvas::canvas_item_add_primitive(RID p_item, const Vector<Poin
 	canvas_item->commands.push_back(prim);
 }
 
-void VisualServerCanvas::canvas_item_add_polygon(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, RID p_texture, RID p_normal_map) {
+void VisualServerCanvas::canvas_item_add_polygon(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, RID p_texture, RID p_normal_map, bool p_antialiased) {
 
 	Item *canvas_item = canvas_item_owner.getornull(p_item);
 	ERR_FAIL_COND(!canvas_item);
@@ -661,6 +661,7 @@ void VisualServerCanvas::canvas_item_add_polygon(RID p_item, const Vector<Point2
 	polygon->colors = p_colors;
 	polygon->indices = indices;
 	polygon->count = indices.size();
+	polygon->antialiased = p_antialiased;
 	canvas_item->rect_dirty = true;
 
 	canvas_item->commands.push_back(polygon);
@@ -745,6 +746,7 @@ void VisualServerCanvas::canvas_item_add_particles(RID p_item, RID p_particles,
 	//take the chance and request processing for them, at least once until they become visible again
 	VSG::storage->particles_request_process(p_particles);
 
+	canvas_item->rect_dirty = true;
 	canvas_item->commands.push_back(part);
 }
 
@@ -758,6 +760,7 @@ void VisualServerCanvas::canvas_item_add_multimesh(RID p_item, RID p_mesh, RID p
 	mm->multimesh = p_mesh;
 	mm->skeleton = p_skeleton;
 
+	canvas_item->rect_dirty = true;
 	canvas_item->commands.push_back(mm);
 }
 

servers/visual/visual_server_canvas.h

@@ -178,7 +178,7 @@ public:
 	void canvas_item_add_texture_rect_region(RID p_item, const Rect2 &p_rect, RID p_texture, const Rect2 &p_src_rect, const Color &p_modulate = Color(1, 1, 1), bool p_transpose = false, RID p_normal_map = RID(), bool p_clip_uv = true);
 	void canvas_item_add_nine_patch(RID p_item, const Rect2 &p_rect, const Rect2 &p_source, RID p_texture, const Vector2 &p_topleft, const Vector2 &p_bottomright, VS::NinePatchAxisMode p_x_axis_mode = VS::NINE_PATCH_STRETCH, VS::NinePatchAxisMode p_y_axis_mode = VS::NINE_PATCH_STRETCH, bool p_draw_center = true, const Color &p_modulate = Color(1, 1, 1), RID p_normal_map = RID());
 	void canvas_item_add_primitive(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, RID p_texture, float p_width = 1.0, RID p_normal_map = RID());
-	void canvas_item_add_polygon(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), RID p_texture = RID(), RID p_normal_map = RID());
+	void canvas_item_add_polygon(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), RID p_texture = RID(), RID p_normal_map = RID(), bool p_antialiased = false);
 	void canvas_item_add_triangle_array(RID p_item, const Vector<int> &p_indices, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), RID p_texture = RID(), int p_count = -1, RID p_normal_map = RID());
 	void canvas_item_add_mesh(RID p_item, const RID &p_mesh, RID p_skeleton = RID());
 	void canvas_item_add_multimesh(RID p_item, RID p_mesh, RID p_skeleton = RID());

servers/visual/visual_server_raster.h

@@ -1059,7 +1059,7 @@ public:
 	BIND8(canvas_item_add_texture_rect_region, RID, const Rect2 &, RID, const Rect2 &, const Color &, bool, RID, bool)
 	BIND11(canvas_item_add_nine_patch, RID, const Rect2 &, const Rect2 &, RID, const Vector2 &, const Vector2 &, NinePatchAxisMode, NinePatchAxisMode, bool, const Color &, RID)
 	BIND7(canvas_item_add_primitive, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, float, RID)
-	BIND6(canvas_item_add_polygon, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, RID)
+	BIND7(canvas_item_add_polygon, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, RID, bool)
 	BIND8(canvas_item_add_triangle_array, RID, const Vector<int> &, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, int, RID)
 	BIND3(canvas_item_add_mesh, RID, const RID &, RID)
 	BIND3(canvas_item_add_multimesh, RID, RID, RID)

servers/visual/visual_server_wrap_mt.h

@@ -482,7 +482,7 @@ public:
 	FUNC8(canvas_item_add_texture_rect_region, RID, const Rect2 &, RID, const Rect2 &, const Color &, bool, RID, bool)
 	FUNC11(canvas_item_add_nine_patch, RID, const Rect2 &, const Rect2 &, RID, const Vector2 &, const Vector2 &, NinePatchAxisMode, NinePatchAxisMode, bool, const Color &, RID)
 	FUNC7(canvas_item_add_primitive, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, float, RID)
-	FUNC6(canvas_item_add_polygon, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, RID)
+	FUNC7(canvas_item_add_polygon, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, RID, bool)
 	FUNC8(canvas_item_add_triangle_array, RID, const Vector<int> &, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, int, RID)
 	FUNC3(canvas_item_add_mesh, RID, const RID &, RID)
 	FUNC3(canvas_item_add_multimesh, RID, RID, RID)

servers/visual_server.h

@@ -798,7 +798,7 @@ public:
 	virtual void canvas_item_add_texture_rect_region(RID p_item, const Rect2 &p_rect, RID p_texture, const Rect2 &p_src_rect, const Color &p_modulate = Color(1, 1, 1), bool p_transpose = false, RID p_normal_map = RID(), bool p_clip_uv = true) = 0;
 	virtual void canvas_item_add_nine_patch(RID p_item, const Rect2 &p_rect, const Rect2 &p_source, RID p_texture, const Vector2 &p_topleft, const Vector2 &p_bottomright, NinePatchAxisMode p_x_axis_mode = NINE_PATCH_STRETCH, NinePatchAxisMode p_y_axis_mode = NINE_PATCH_STRETCH, bool p_draw_center = true, const Color &p_modulate = Color(1, 1, 1), RID p_normal_map = RID()) = 0;
 	virtual void canvas_item_add_primitive(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, RID p_texture, float p_width = 1.0, RID p_normal_map = RID()) = 0;
-	virtual void canvas_item_add_polygon(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), RID p_texture = RID(), RID p_normal_map = RID()) = 0;
+	virtual void canvas_item_add_polygon(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), RID p_texture = RID(), RID p_normal_map = RID(), bool p_antialiased = false) = 0;
 	virtual void canvas_item_add_triangle_array(RID p_item, const Vector<int> &p_indices, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), RID p_texture = RID(), int p_count = -1, RID p_normal_map = RID()) = 0;
 	virtual void canvas_item_add_mesh(RID p_item, const RID &p_mesh, RID p_skeleton = RID()) = 0;
 	virtual void canvas_item_add_multimesh(RID p_item, RID p_mesh, RID p_skeleton = RID()) = 0;