Merge pull request #53287 from Chaosus/sprite3d_fix

doc/classes/Sprite3D.xml

@@ -36,5 +36,10 @@
 				Emitted when the [member frame] changes.
 			</description>
 		</signal>
+		<signal name="texture_changed">
+			<description>
+				Emitted when the [member texture] changes.
+			</description>
+		</signal>
 	</signals>
 </class>

scene/3d/sprite_3d.cpp

@@ -625,6 +625,7 @@ void Sprite3D::set_texture(const Ref<Texture2D> &p_texture) {
 		texture->connect(CoreStringNames::get_singleton()->changed, Callable(this, "_queue_update"));
 	}
 	_queue_update();
+	emit_signal(SceneStringNames::get_singleton()->texture_changed);
 }
 
 Ref<Texture2D> Sprite3D::get_texture() const {
@@ -780,6 +781,7 @@ void Sprite3D::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::RECT2, "region_rect"), "set_region_rect", "get_region_rect");
 
 	ADD_SIGNAL(MethodInfo("frame_changed"));
+	ADD_SIGNAL(MethodInfo("texture_changed"));
 }
 
 Sprite3D::Sprite3D() {