Fixed antialiased option for Polygon2D / Line2D

Polygon2D:
The property wasn't used anymore after switching from canvas_item_add_polygon() to canvas_item_add_triangle_array() for drawing.

Line2D:
Added the same property as for Polygon2D & fixed smooth line drawing to use indices correctly.

Fixes #26823

3 files changed, 22 insertions, 4 deletions

diff --git a/scene/2d/line_2d.cpp b/scene/2d/line_2d.cpp
index ad405fabbb..af3ed671aa 100644
--- a/scene/2d/line_2d.cpp
+++ b/scene/2d/line_2d.cpp
@@ -47,6 +47,7 @@ Line2D::Line2D() {
 	_texture_mode = LINE_TEXTURE_NONE;
 	_sharp_limit = 2.f;
 	_round_precision = 8;
+	_antialiased = false;
 }
 
 Rect2 Line2D::_edit_get_rect() const {
@@ -260,6 +261,15 @@ int Line2D::get_round_precision() const {
 	return _round_precision;
 }
 
+void Line2D::set_antialiased(bool p_antialiased) {
+	_antialiased = p_antialiased;
+	update();
+}
+
+bool Line2D::get_antialiased() const {
+	return _antialiased;
+}
+
 void Line2D::_draw() {
 	if (_points.size() <= 1 || _width == 0.f)
 		return;
@@ -305,8 +315,8 @@ void Line2D::_draw() {
 			lb.vertices,
 			lb.colors,
 			lb.uvs, Vector<int>(), Vector<float>(),
-
-			texture_rid);
+			texture_rid, -1, RID(),
+			_antialiased);
 
 	// DEBUG
 	// Draw wireframe
@@ -386,6 +396,9 @@ void Line2D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_round_precision", "precision"), &Line2D::set_round_precision);
 	ClassDB::bind_method(D_METHOD("get_round_precision"), &Line2D::get_round_precision);
 
+	ClassDB::bind_method(D_METHOD("set_antialiased", "antialiased"), &Line2D::set_antialiased);
+	ClassDB::bind_method(D_METHOD("get_antialiased"), &Line2D::get_antialiased);
+
 	ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR2_ARRAY, "points"), "set_points", "get_points");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "width"), "set_width", "get_width");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "width_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_curve", "get_curve");
@@ -401,6 +414,7 @@ void Line2D::_bind_methods() {
 	ADD_GROUP("Border", "");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "sharp_limit"), "set_sharp_limit", "get_sharp_limit");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "round_precision"), "set_round_precision", "get_round_precision");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "antialiased"), "set_antialiased", "get_antialiased");
 
 	BIND_ENUM_CONSTANT(LINE_JOINT_SHARP);
 	BIND_ENUM_CONSTANT(LINE_JOINT_BEVEL);
diff --git a/scene/2d/line_2d.h b/scene/2d/line_2d.h
index 14afa463ba..10b2bf16e4 100644
--- a/scene/2d/line_2d.h
+++ b/scene/2d/line_2d.h
@@ -108,6 +108,9 @@ public:
 	void set_round_precision(int precision);
 	int get_round_precision() const;
 
+	void set_antialiased(bool p_antialiased);
+	bool get_antialiased() const;
+
 protected:
 	void _notification(int p_what);
 	void _draw();
@@ -131,6 +134,7 @@ private:
 	LineTextureMode _texture_mode;
 	float _sharp_limit;
 	int _round_precision;
+	bool _antialiased;
 };
 
 #endif // LINE2D_H
diff --git a/scene/2d/polygon_2d.cpp b/scene/2d/polygon_2d.cpp
index 5e14959e9d..9fe67a4d7e 100644
--- a/scene/2d/polygon_2d.cpp
+++ b/scene/2d/polygon_2d.cpp
@@ -308,7 +308,7 @@ void Polygon2D::_notification(int p_what) {
 			if (invert || polygons.size() == 0) {
 				Vector<int> indices = Geometry::triangulate_polygon(points);
 				if (indices.size()) {
-					VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), indices, points, colors, uvs, bones, weights, texture.is_valid() ? texture->get_rid() : RID());
+					VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), indices, points, colors, uvs, bones, weights, texture.is_valid() ? texture->get_rid() : RID(), -1, RID(), antialiased);
 				}
 			} else {
 				//draw individual polygons
@@ -342,7 +342,7 @@ void Polygon2D::_notification(int p_what) {
 				}
 
 				if (total_indices.size()) {
-					VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), total_indices, points, colors, uvs, bones, weights, texture.is_valid() ? texture->get_rid() : RID());
+					VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), total_indices, points, colors, uvs, bones, weights, texture.is_valid() ? texture->get_rid() : RID(), -1, RID(), antialiased);
 				}
 
 #if 0