Added extra warning to VisualShaderNodeTexture + fix warning appearing

editor/plugins/visual_shader_editor_plugin.cpp

@@ -102,7 +102,6 @@ void VisualShaderGraphPlugin::_bind_methods() {
 	ClassDB::bind_method("disconnect_nodes", &VisualShaderGraphPlugin::disconnect_nodes);
 	ClassDB::bind_method("set_node_position", &VisualShaderGraphPlugin::set_node_position);
 	ClassDB::bind_method("set_node_size", &VisualShaderGraphPlugin::set_node_size);
-	ClassDB::bind_method("show_port_preview", &VisualShaderGraphPlugin::show_port_preview);
 	ClassDB::bind_method("update_node", &VisualShaderGraphPlugin::update_node);
 	ClassDB::bind_method("update_node_deferred", &VisualShaderGraphPlugin::update_node_deferred);
 	ClassDB::bind_method("set_input_port_default_value", &VisualShaderGraphPlugin::set_input_port_default_value);
@@ -1558,8 +1557,8 @@ void VisualShaderEditor::_preview_select_port(int p_node, int p_port) {
 	undo_redo->create_action(p_port == -1 ? TTR("Hide Port Preview") : TTR("Show Port Preview"));
 	undo_redo->add_do_method(node.ptr(), "set_output_port_for_preview", p_port);
 	undo_redo->add_undo_method(node.ptr(), "set_output_port_for_preview", prev_port);
-	undo_redo->add_do_method(graph_plugin.ptr(), "show_port_preview", (int)type, p_node, p_port);
-	undo_redo->add_undo_method(graph_plugin.ptr(), "show_port_preview", (int)type, p_node, prev_port);
+	undo_redo->add_do_method(graph_plugin.ptr(), "update_node", (int)type, p_node);
+	undo_redo->add_undo_method(graph_plugin.ptr(), "update_node", (int)type, p_node);
 	undo_redo->commit_action();
 }
 
@@ -1959,6 +1958,8 @@ void VisualShaderEditor::_connection_request(const String &p_from, int p_from_in
 	undo_redo->add_undo_method(visual_shader.ptr(), "disconnect_nodes", type, from, p_from_index, to, p_to_index);
 	undo_redo->add_do_method(graph_plugin.ptr(), "connect_nodes", type, from, p_from_index, to, p_to_index);
 	undo_redo->add_undo_method(graph_plugin.ptr(), "disconnect_nodes", type, from, p_from_index, to, p_to_index);
+	undo_redo->add_do_method(graph_plugin.ptr(), "update_node", (int)type, to);
+	undo_redo->add_undo_method(graph_plugin.ptr(), "update_node", (int)type, to);
 	undo_redo->commit_action();
 }
 
@@ -1975,6 +1976,8 @@ void VisualShaderEditor::_disconnection_request(const String &p_from, int p_from
 	undo_redo->add_undo_method(visual_shader.ptr(), "connect_nodes", type, from, p_from_index, to, p_to_index);
 	undo_redo->add_do_method(graph_plugin.ptr(), "disconnect_nodes", type, from, p_from_index, to, p_to_index);
 	undo_redo->add_undo_method(graph_plugin.ptr(), "connect_nodes", type, from, p_from_index, to, p_to_index);
+	undo_redo->add_do_method(graph_plugin.ptr(), "update_node", (int)type, to);
+	undo_redo->add_undo_method(graph_plugin.ptr(), "update_node", (int)type, to);
 	undo_redo->commit_action();
 }
 

scene/resources/visual_shader_nodes.cpp

@@ -724,6 +724,10 @@ Vector<StringName> VisualShaderNodeTexture::get_editable_properties() const {
 }
 
 String VisualShaderNodeTexture::get_warning(Shader::Mode p_mode, VisualShader::Type p_type) const {
+	if (is_input_port_connected(2) && source != SOURCE_PORT) {
+		return TTR("The sampler port is connected but not used. Consider changing the source to 'SamplerPort'.");
+	}
+
 	if (source == SOURCE_TEXTURE) {
 		return String(); // all good
 	}
@@ -980,6 +984,10 @@ void VisualShaderNodeSample3D::_bind_methods() {
 }
 
 String VisualShaderNodeSample3D::get_warning(Shader::Mode p_mode, VisualShader::Type p_type) const {
+	if (is_input_port_connected(2) && source != SOURCE_PORT) {
+		return TTR("The sampler port is connected but not used. Consider changing the source to 'SamplerPort'.");
+	}
+
 	if (source == SOURCE_TEXTURE) {
 		return String(); // all good
 	}
@@ -1276,6 +1284,13 @@ Vector<StringName> VisualShaderNodeCubemap::get_editable_properties() const {
 	return props;
 }
 
+String VisualShaderNodeCubemap::get_warning(Shader::Mode p_mode, VisualShader::Type p_type) const {
+	if (is_input_port_connected(2) && source != SOURCE_PORT) {
+		return TTR("The sampler port is connected but not used. Consider changing the source to 'SamplerPort'.");
+	}
+	return String();
+}
+
 void VisualShaderNodeCubemap::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_source", "value"), &VisualShaderNodeCubemap::set_source);
 	ClassDB::bind_method(D_METHOD("get_source"), &VisualShaderNodeCubemap::get_source);

scene/resources/visual_shader_nodes.h

@@ -448,6 +448,7 @@ public:
 	TextureType get_texture_type() const;
 
 	virtual Vector<StringName> get_editable_properties() const override;
+	virtual String get_warning(Shader::Mode p_mode, VisualShader::Type p_type) const override;
 
 	VisualShaderNodeCubemap();
 };