Update the DisplayServer video driver error message

to be more accurate and friendly

platform/linuxbsd/display_server_x11.cpp

@@ -4435,10 +4435,21 @@ Vector<String> DisplayServerX11::get_rendering_drivers_func() {
 DisplayServer *DisplayServerX11::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
 	DisplayServer *ds = memnew(DisplayServerX11(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error));
 	if (r_error != OK) {
-		OS::get_singleton()->alert("Your video card driver does not support any of the supported Vulkan or OpenGL versions.\n"
-								   "Please update your drivers or if you have a very old or integrated GPU, upgrade it.\n"
-								   "If you have updated your graphics drivers recently, try rebooting.",
-				"Unable to initialize Video driver");
+		if (p_rendering_driver == "vulkan") {
+			String executable_name = OS::get_singleton()->get_executable_path().get_file();
+			OS::get_singleton()->alert("Your video card driver does not support the selected Vulkan version.\n"
+									   "Please try updating your GPU driver or try using the OpenGL 3 driver.\n"
+									   "You can enable the OpenGL 3 driver by starting the engine from the\n"
+									   "command line with the command:\n'./" +
+							executable_name + " --rendering-driver opengl3'.\n "
+											  "If you have updated your graphics drivers recently, try rebooting.",
+					"Unable to initialize Video driver");
+		} else {
+			OS::get_singleton()->alert("Your video card driver does not support the selected OpenGL version.\n"
+									   "Please try updating your GPU driver.\n"
+									   "If you have updated your graphics drivers recently, try rebooting.",
+					"Unable to initialize Video driver");
+		}
 	}
 	return ds;
 }

platform/macos/display_server_macos.mm

@@ -3408,7 +3408,26 @@ void DisplayServerMacOS::set_icon(const Ref<Image> &p_icon) {
 DisplayServer *DisplayServerMacOS::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
 	DisplayServer *ds = memnew(DisplayServerMacOS(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error));
 	if (r_error != OK) {
-		OS::get_singleton()->alert("Your video card driver does not support any of the supported Vulkan or OpenGL versions.", "Unable to initialize Video driver");
+		if (p_rendering_driver == "vulkan") {
+			String executable_command;
+			if (OS::get_singleton()->get_bundle_resource_dir() == OS::get_singleton()->get_executable_path().get_base_dir()) {
+				executable_command = vformat("%s --rendering-driver opengl3", OS::get_singleton()->get_executable_path());
+			} else {
+				executable_command = vformat("open %s --args --rendering-driver opengl3", OS::get_singleton()->get_bundle_resource_dir().path_join("../..").simplify_path());
+			}
+			OS::get_singleton()->alert("Your video card driver does not support the selected Vulkan version.\n"
+									   "Please try updating your GPU driver or try using the OpenGL 3 driver.\n"
+									   "You can enable the OpenGL 3 driver by starting the engine from the\n"
+									   "command line with the command: '" +
+							executable_command + "'.\n"
+												 "If you have updated your graphics drivers recently, try rebooting.",
+					"Unable to initialize Video driver");
+		} else {
+			OS::get_singleton()->alert("Your video card driver does not support the selected OpenGL version.\n"
+									   "Please try updating your GPU driver.\n"
+									   "If you have updated your graphics drivers recently, try rebooting.",
+					"Unable to initialize Video driver");
+		}
 	}
 	return ds;
 }

platform/windows/display_server_windows.cpp

@@ -3921,9 +3921,21 @@ Vector<String> DisplayServerWindows::get_rendering_drivers_func() {
 DisplayServer *DisplayServerWindows::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
 	DisplayServer *ds = memnew(DisplayServerWindows(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error));
 	if (r_error != OK) {
-		OS::get_singleton()->alert("Your video card driver does not support any of the supported Vulkan or OpenGL versions.\n"
-								   "Please update your drivers or if you have a very old or integrated GPU upgrade it.",
-				"Unable to initialize Video driver");
+		if (p_rendering_driver == "vulkan") {
+			String executable_name = OS::get_singleton()->get_executable_path().get_file();
+			OS::get_singleton()->alert("Your video card driver does not support the selected Vulkan version.\n"
+									   "Please try updating your GPU driver or try using the OpenGL 3 driver.\n"
+									   "You can enable the OpenGL 3 driver by starting the engine from the\n"
+									   "command line with the command:\n'./" +
+							executable_name + " --rendering-driver opengl3'.\n "
+											  "If you have updated your graphics drivers recently, try rebooting.",
+					"Unable to initialize Video driver");
+		} else {
+			OS::get_singleton()->alert("Your video card driver does not support the selected OpenGL version.\n"
+									   "Please try updating your GPU driver.\n"
+									   "If you have updated your graphics drivers recently, try rebooting.",
+					"Unable to initialize Video driver");
+		}
 	}
 	return ds;
 }