Merge pull request #103197 from akien-mga/safer-rendering-driver-selection

Fix cross-platform configuration of rendering driver settings (narrower approach)

doc/classes/ProjectSettings.xml

@@ -2684,38 +2684,48 @@
 		<member name="rendering/environment/volumetric_fog/volume_size" type="int" setter="" getter="" default="64">
 			Base size used to determine size of froxel buffer in the camera X-axis and Y-axis. The final size is scaled by the aspect ratio of the screen, so actual values may differ from what is set. Set a larger size for more detailed fog, set a smaller size for better performance.
 		</member>
-		<member name="rendering/gl_compatibility/driver" type="String" setter="" getter="" default="&quot;auto&quot;">
-			Sets the driver to be used by the renderer when using the Compatibility renderer. This property can not be edited directly, instead, set the driver using the platform-specific overrides.
+		<member name="rendering/gl_compatibility/driver" type="String" setter="" getter="" default="&quot;opengl3&quot;">
+			Sets the driver to be used by the renderer when using the Compatibility renderer. Editing this property has no effect in the default configuration, as first-party platforms each have platform-specific overrides. Use those overrides to configure the driver for each platform.
+			This can be overridden using the [code]--rendering-driver &lt;driver&gt;[/code] command line argument.
 			Supported values are:
-			- [code]auto[/code], currently defaults to [code]opengl3[/code] on all platforms.
 			- [code]opengl3[/code], OpenGL 3.3 on desktop platforms, OpenGL ES 3.0 on mobile platforms, WebGL 2.0 on web.
-			- [code]opengl3_angle[/code], OpenGL ES 3.0 over ANGLE compatibility layer, supported on macOS (over native OpenGL) and Windows (over Direct3D 11).
+			- [code]opengl3_angle[/code], OpenGL ES 3.0 using the ANGLE compatibility layer, supported on macOS (over native OpenGL) and Windows (over Direct3D 11).
 			- [code]opengl3_es[/code], OpenGL ES 3.0 on Linux/BSD.
 			[b]Note:[/b] The availability of these options depends on whether the engine was compiled with support for them (determined by SCons options [code]opengl3[/code] and [code]angle_libs[/code]).
+			[b]Note:[/b] The actual rendering driver may be automatically changed by the engine as a result of a fallback, or a user-specified command line argument. To get the actual rendering driver that is used at runtime, use [method RenderingServer.get_current_rendering_driver_name] instead of reading this project setting's value.
 		</member>
-		<member name="rendering/gl_compatibility/driver.android" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/gl_compatibility/driver.android" type="String" setter="" getter="" default="&quot;opengl3&quot;">
 			Android override for [member rendering/gl_compatibility/driver].
-			The [code]auto[/code] setting is equivalent to [code]opengl3[/code] on this platform.
+			Only one option is supported:
+			- [code]opengl3[/code], OpenGL ES 3.0 from native drivers.
 		</member>
-		<member name="rendering/gl_compatibility/driver.ios" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/gl_compatibility/driver.ios" type="String" setter="" getter="" default="&quot;opengl3&quot;">
 			iOS override for [member rendering/gl_compatibility/driver].
-			The [code]auto[/code] setting is equivalent to [code]opengl3[/code] on this platform.
+			Only one option is supported:
+			- [code]opengl3[/code], OpenGL ES 3.0 from native drivers.
 		</member>
-		<member name="rendering/gl_compatibility/driver.linuxbsd" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/gl_compatibility/driver.linuxbsd" type="String" setter="" getter="" default="&quot;opengl3&quot;">
 			LinuxBSD override for [member rendering/gl_compatibility/driver].
-			The [code]auto[/code] setting is equivalent to [code]opengl3[/code] on this platform. [code]opengl3_es[/code] is available as an option, which is also used as a fallback on devices that don't support OpenGL 3.3.
+			Two options are supported:
+			- [code]opengl3[/code] (default), OpenGL 3.3 from native drivers.
+			- [code]opengl3_es[/code], OpenGL ES 3.0 from native drivers. If [member rendering/gl_compatibility/fallback_to_gles] is enabled, this is used as a fallback if OpenGL 3.3 is not supported.
 		</member>
-		<member name="rendering/gl_compatibility/driver.macos" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/gl_compatibility/driver.macos" type="String" setter="" getter="" default="&quot;opengl3&quot;">
 			macOS override for [member rendering/gl_compatibility/driver].
-			The [code]auto[/code] setting is equivalent to [code]opengl3[/code] on this platform. [code]opengl3_angle[/code] is available as an option if ANGLE support was compiled in.
+			Two options are supported:
+			- [code]opengl3[/code] (default), OpenGL 3.3 from native drivers. If [member rendering/gl_compatibility/fallback_to_native] is enabled, this is used as a fallback if ANGLE is configured as the preferred driver but not supported.
+			- [code]opengl3_angle[/code], OpenGL ES 3.0 using the ANGLE compatibility layer over native OpenGL drivers. If [member rendering/gl_compatibility/fallback_to_angle] is enabled, this is used as a fallback if OpenGL 3.3 is not supported.
 		</member>
-		<member name="rendering/gl_compatibility/driver.web" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/gl_compatibility/driver.web" type="String" setter="" getter="" default="&quot;opengl3&quot;">
 			Web override for [member rendering/gl_compatibility/driver].
-			The [code]auto[/code] setting is equivalent to [code]opengl3[/code] on this platform.
+			Only one option is supported:
+			- [code]opengl3[/code], WebGL 2.0. The underlying native API depends on the target OS, browser, and browser configuration.
 		</member>
-		<member name="rendering/gl_compatibility/driver.windows" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/gl_compatibility/driver.windows" type="String" setter="" getter="" default="&quot;opengl3&quot;">
 			Windows override for [member rendering/gl_compatibility/driver].
-			The [code]auto[/code] setting is equivalent to [code]opengl3[/code] on this platform. [code]opengl3_angle[/code] is available as an option if ANGLE supported was compiled in. In such case, ANGLE is used preferentially on lower end devices with known problematic native OpenGL drivers (see [member rendering/gl_compatibility/force_angle_on_devices]).
+			Two options are supported:
+			- [code]opengl3[/code] (default), OpenGL 3.3 from native drivers. If [member rendering/gl_compatibility/fallback_to_native] is enabled, this is used as a fallback if ANGLE is configured as the preferred driver but not supported.
+			- [code]opengl3_angle[/code], OpenGL ES 3.0 using the ANGLE compatibility layer over native Direct3D 11 drivers. If [member rendering/gl_compatibility/fallback_to_angle] is enabled, this is used as a fallback if OpenGL 3.3 is not supported. By default, ANGLE is used as the default driver for some devices listed in [member rendering/gl_compatibility/force_angle_on_devices].
 		</member>
 		<member name="rendering/gl_compatibility/fallback_to_angle" type="bool" setter="" getter="" default="true">
 			If [code]true[/code], the compatibility renderer will fall back to ANGLE if native OpenGL is not supported or the device is listed in [member rendering/gl_compatibility/force_angle_on_devices].
@@ -2981,43 +2991,49 @@
 			The number of entries in the sampler descriptors heap the Direct3D 12 rendering driver uses each frame, used for most rendering operations.
 			Depending on the complexity of scenes, this value may be lowered or may need to be raised.
 		</member>
-		<member name="rendering/rendering_device/driver" type="String" setter="" getter="" default="&quot;auto&quot;">
-			Sets the driver to be used by the renderer when using a RenderingDevice-based renderer like the Forward+ or Mobile renderers. This property can't be edited directly. Instead, set the driver using the platform-specific overrides. This can be overridden using the [code]--rendering-driver &lt;driver&gt;[/code] command line argument.
+		<member name="rendering/rendering_device/driver" type="String" setter="" getter="" default="&quot;vulkan&quot;">
+			Sets the driver to be used by the renderer when using a RenderingDevice-based renderer like the Forward+ or Mobile renderers. Editing this property has no effect in the default configuration, as first-party platforms each have platform-specific overrides. Use those overrides to configure the driver for each platform.
+			This can be overridden using the [code]--rendering-driver &lt;driver&gt;[/code] command line argument.
 			Supported values are:
-			- [code]auto[/code], Metal on Apple Silicon Macs and iOS, Vulkan on other built-in platforms. On Windows, Direct3D 12 is the default if the engine was compiled without Vulkan support.
 			- [code]metal[/code], Metal (supported on Apple Silicon Macs and iOS).
 			- [code]vulkan[/code], Vulkan (supported on all desktop and mobile platforms).
 			- [code]d3d12[/code], Direct3D 12 (supported on Windows).
 			[b]Note:[/b] The availability of these options depends on whether the engine was compiled with support for them (determined by SCons options [code]vulkan[/code], [code]metal[/code], and [code]d3d12[/code]).
+			[b]Note:[/b] If a given platform has no registered drivers, it can fall back to the Compatibility renderer (OpenGL 3) if [member rendering/rendering_device/fallback_to_opengl3] is enabled. This fallback happens automatically for the Web platform regardless of that property.
 			[b]Note:[/b] The actual rendering driver may be automatically changed by the engine as a result of a fallback, or a user-specified command line argument. To get the actual rendering driver that is used at runtime, use [method RenderingServer.get_current_rendering_driver_name] instead of reading this project setting's value.
 		</member>
-		<member name="rendering/rendering_device/driver.android" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/rendering_device/driver.android" type="String" setter="" getter="" default="&quot;vulkan&quot;">
 			Android override for [member rendering/rendering_device/driver].
-			The [code]auto[/code] setting is equivalent to [code]vulkan[/code] on this platform.
+			Only one option is supported:
+			- [code]vulkan[/code], Vulkan from native drivers.
 			[b]Note:[/b] If Vulkan was disabled at compile time, there is no alternative RenderingDevice driver.
 		</member>
-		<member name="rendering/rendering_device/driver.ios" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/rendering_device/driver.ios" type="String" setter="" getter="" default="&quot;metal&quot;">
 			iOS override for [member rendering/rendering_device/driver].
-			The [code]auto[/code] setting is equivalent to [code]metal[/code] on this platform.
-			[b]Note:[/b] If Metal was disabled at compile time, the default becomes [code]vulkan[/code]. If both Metal and Vulkan were disabled at compile time, there is no alternative RenderingDevice driver.
+			Two options are supported:
+			- [code]metal[/code] (default), Metal from native drivers.
+			- [code]vulkan[/code], Vulkan over Metal via MoltenVK.
 		</member>
-		<member name="rendering/rendering_device/driver.linuxbsd" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/rendering_device/driver.linuxbsd" type="String" setter="" getter="" default="&quot;vulkan&quot;">
 			LinuxBSD override for [member rendering/rendering_device/driver].
-			The [code]auto[/code] setting is equivalent to [code]vulkan[/code] on this platform.
+			Only one option is supported:
+			- [code]vulkan[/code], Vulkan from native drivers.
 			[b]Note:[/b] If Vulkan was disabled at compile time, there is no alternative RenderingDevice driver.
 		</member>
-		<member name="rendering/rendering_device/driver.macos" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/rendering_device/driver.macos" type="String" setter="" getter="" default="&quot;metal&quot;">
 			macOS override for [member rendering/rendering_device/driver].
-			The [code]auto[/code] setting is equivalent to [code]metal[/code] on Apple Silicon Macs, and [code]vulkan[/code] (MoltenVK) on Intel Macs. Metal isn't supported on Intel Macs, so even if setting [code]metal[/code] explicitly, it will fallback to Vulkan on Intel Macs.
-			[b]Note:[/b] If Metal was disabled at compile time, the default becomes [code]vulkan[/code] for both Apple Silicon and Intel Macs. If both Metal and Vulkan were disabled at compile time, there is no alternative RenderingDevice driver.
+			Two options are supported:
+			- [code]metal[/code] (default), Metal from native drivers, only supported on Apple Silicon Macs. On Intel Macs, it will automatically fall back to [code]vulkan[/code] as Metal support is not implemented.
+			- [code]vulkan[/code], Vulkan over Metal via MoltenVK, supported on both Apple Silicon and Intel Macs.
 		</member>
-		<member name="rendering/rendering_device/driver.windows" type="String" setter="" getter="" default="&quot;auto&quot;">
+		<member name="rendering/rendering_device/driver.windows" type="String" setter="" getter="" default="&quot;vulkan&quot;">
 			Windows override for [member rendering/rendering_device/driver].
-			The [code]auto[/code] setting is equivalent to [code]vulkan[/code] on this platform.
-			[b]Note:[/b] If Vulkan was disabled at compile time, the default becomes [code]d3d12[/code]. If both Vulkan and Direct3D 12 were disabled at compile time, there is no alternative RenderingDevice driver.
+			Two options are supported:
+			- [code]vulkan[/code] (default), Vulkan from native drivers. If [member rendering/rendering_device/fallback_to_vulkan] is enabled, this is used as a fallback if Direct3D 12 is not supported.
+			- [code]d3d12[/code], Direct3D 12 from native drivers. If [member rendering/rendering_device/fallback_to_d3d12] is enabled, this is used as a fallback if Vulkan is not supported.
 		</member>
 		<member name="rendering/rendering_device/fallback_to_d3d12" type="bool" setter="" getter="" default="true">
-			If [code]true[/code], the forward renderer will fall back to Direct3D 12 if Vulkan is not supported.
+			If [code]true[/code], the forward renderer will fall back to Direct3D 12 if Vulkan is not supported. The fallback is always attempted regardless of this setting if Vulkan driver support was disabled at compile time.
 			[b]Note:[/b] This setting is implemented only on Windows.
 		</member>
 		<member name="rendering/rendering_device/fallback_to_opengl3" type="bool" setter="" getter="" default="true">
@@ -3025,7 +3041,7 @@
 			[b]Note:[/b] This setting is implemented only on Windows, Android, macOS, iOS, and Linux/X11.
 		</member>
 		<member name="rendering/rendering_device/fallback_to_vulkan" type="bool" setter="" getter="" default="true">
-			If [code]true[/code], the forward renderer will fall back to Vulkan if Direct3D 12 (on Windows) or Metal (on macOS x86_64) are not supported.
+			If [code]true[/code], the forward renderer will fall back to Vulkan if Direct3D 12 (on Windows) or Metal (on macOS x86_64) are not supported. The fallback is always attempted regardless of this setting if Direct3D 12 (Windows) or Metal (macOS) driver support was disabled at compile time.
 			[b]Note:[/b] This setting is implemented only on Windows and macOS.
 		</member>
 		<member name="rendering/rendering_device/pipeline_cache/enable" type="bool" setter="" getter="" default="true">

main/main.cpp

@@ -2030,14 +2030,20 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 
 	Logger::set_flush_stdout_on_print(GLOBAL_GET("application/run/flush_stdout_on_print"));
 
+	// Rendering drivers configuration.
+
+	// Always include all supported drivers as hint, as this is used by the editor host platform
+	// for project settings. For example, a Linux user should be able to configure that they want
+	// to export for D3D12 on Windows and Metal on macOS even if their host platform can't use those.
+
 	{
-		// For now everything defaults to vulkan when available. This can change in future updates.
-		GLOBAL_DEF_RST("rendering/rendering_device/driver", "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.windows", PROPERTY_HINT_ENUM, "auto,vulkan,d3d12"), "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.linuxbsd", PROPERTY_HINT_ENUM, "auto,vulkan"), "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.android", PROPERTY_HINT_ENUM, "auto,vulkan"), "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.ios", PROPERTY_HINT_ENUM, "auto,metal,vulkan"), "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.macos", PROPERTY_HINT_ENUM, "auto,metal,vulkan"), "auto");
+		// RenderingDevice driver overrides per platform.
+		GLOBAL_DEF_RST("rendering/rendering_device/driver", "vulkan");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.windows", PROPERTY_HINT_ENUM, "vulkan,d3d12"), "vulkan");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.linuxbsd", PROPERTY_HINT_ENUM, "vulkan"), "vulkan");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.android", PROPERTY_HINT_ENUM, "vulkan"), "vulkan");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.ios", PROPERTY_HINT_ENUM, "metal,vulkan"), "metal");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/rendering_device/driver.macos", PROPERTY_HINT_ENUM, "metal,vulkan"), "metal");
 
 		GLOBAL_DEF_RST("rendering/rendering_device/fallback_to_vulkan", true);
 		GLOBAL_DEF_RST("rendering/rendering_device/fallback_to_d3d12", true);
@@ -2045,13 +2051,14 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 	}
 
 	{
-		GLOBAL_DEF_RST("rendering/gl_compatibility/driver", "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.windows", PROPERTY_HINT_ENUM, "auto,opengl3,opengl3_angle"), "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.linuxbsd", PROPERTY_HINT_ENUM, "auto,opengl3,opengl3_es"), "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.web", PROPERTY_HINT_ENUM, "auto,opengl3"), "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.android", PROPERTY_HINT_ENUM, "auto,opengl3"), "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.ios", PROPERTY_HINT_ENUM, "auto,opengl3"), "auto");
-		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.macos", PROPERTY_HINT_ENUM, "auto,opengl3,opengl3_angle"), "auto");
+		// GL Compatibility driver overrides per platform.
+		GLOBAL_DEF_RST("rendering/gl_compatibility/driver", "opengl3");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.windows", PROPERTY_HINT_ENUM, "opengl3,opengl3_angle"), "opengl3");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.linuxbsd", PROPERTY_HINT_ENUM, "opengl3,opengl3_es"), "opengl3");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.web", PROPERTY_HINT_ENUM, "opengl3"), "opengl3");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.android", PROPERTY_HINT_ENUM, "opengl3"), "opengl3");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.ios", PROPERTY_HINT_ENUM, "opengl3"), "opengl3");
+		GLOBAL_DEF_RST(PropertyInfo(Variant::STRING, "rendering/gl_compatibility/driver.macos", PROPERTY_HINT_ENUM, "opengl3,opengl3_angle"), "opengl3");
 
 		GLOBAL_DEF_RST("rendering/gl_compatibility/nvidia_disable_threaded_optimization", true);
 		GLOBAL_DEF_RST("rendering/gl_compatibility/fallback_to_angle", true);
@@ -2385,30 +2392,6 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 	// always convert to lower case for consistency in the code
 	rendering_driver = rendering_driver.to_lower();
 
-	if (rendering_method == "gl_compatibility") {
-#ifdef GLES3_ENABLED
-		if (rendering_driver == "auto") {
-			rendering_driver = "opengl3";
-		}
-#endif
-	} else {
-#ifdef METAL_ENABLED
-		if (rendering_driver == "auto") {
-			rendering_driver = "metal";
-		}
-#endif
-#ifdef VULKAN_ENABLED
-		if (rendering_driver == "auto") {
-			rendering_driver = "vulkan";
-		}
-#endif
-#ifdef D3D12_ENABLED
-		if (rendering_driver == "auto") {
-			rendering_driver = "d3d12";
-		}
-#endif
-	}
-
 	OS::get_singleton()->set_current_rendering_driver_name(rendering_driver);
 	OS::get_singleton()->set_current_rendering_method(rendering_method);
 

platform/android/export/export_plugin.cpp

@@ -856,9 +856,9 @@ bool EditorExportPlatformAndroid::_has_manage_external_storage_permission(const
 }
 
 bool EditorExportPlatformAndroid::_uses_vulkan() {
-	String current_renderer = GLOBAL_GET("rendering/renderer/rendering_method.mobile");
-	bool uses_vulkan = (current_renderer == "forward_plus" || current_renderer == "mobile") && GLOBAL_GET("rendering/rendering_device/driver.android") == "vulkan";
-	return uses_vulkan;
+	String rendering_method = GLOBAL_GET("rendering/renderer/rendering_method.mobile");
+	String rendering_driver = GLOBAL_GET("rendering/rendering_device/driver.android");
+	return (rendering_method == "forward_plus" || rendering_method == "mobile") && rendering_driver == "vulkan";
 }
 
 void EditorExportPlatformAndroid::_notification(int p_what) {

platform/android/java/lib/src/org/godotengine/godot/Godot.kt

@@ -825,10 +825,11 @@ class Godot(private val context: Context) {
 	 * Returns true if `Vulkan` is used for rendering.
 	 */
 	private fun usesVulkan(): Boolean {
-		var rendererSource = "ProjectSettings"
-		var renderer = GodotLib.getGlobal("rendering/renderer/rendering_method")
+		val rendererInfo = GodotLib.getRendererInfo()
 		var renderingDeviceSource = "ProjectSettings"
-		var renderingDevice = GodotLib.getGlobal("rendering/rendering_device/driver")
+		var renderingDevice = rendererInfo[0]
+		var rendererSource = "ProjectSettings"
+		var renderer = rendererInfo[1]
 		val cmdline = getCommandLine()
 		var index = cmdline.indexOf("--rendering-method")
 		if (index > -1 && cmdline.size > index + 1) {

platform/android/java/lib/src/org/godotengine/godot/GodotLib.java

@@ -189,6 +189,15 @@ public class GodotLib {
 	 */
 	public static native String getGlobal(String p_key);
 
+	/**
+	 * Used to get info about the current rendering system.
+	 *
+	 * @return A String array with two elements:
+	 *         [0] Rendering driver name.
+	 *         [1] Rendering method.
+	 */
+	public static native String[] getRendererInfo();
+
 	/**
 	 * Used to access Godot's editor settings.
 	 * @param settingKey Setting key

platform/android/java_godot_lib_jni.cpp

@@ -474,6 +474,17 @@ JNIEXPORT jstring JNICALL Java_org_godotengine_godot_GodotLib_getGlobal(JNIEnv *
 	return env->NewStringUTF(setting_value.utf8().get_data());
 }
 
+JNIEXPORT jobjectArray JNICALL Java_org_godotengine_godot_GodotLib_getRendererInfo(JNIEnv *env, jclass clazz) {
+	String rendering_driver = RenderingServer::get_singleton()->get_current_rendering_driver_name();
+	String rendering_method = RenderingServer::get_singleton()->get_current_rendering_method();
+
+	jobjectArray result = env->NewObjectArray(2, env->FindClass("java/lang/String"), nullptr);
+	env->SetObjectArrayElement(result, 0, env->NewStringUTF(rendering_driver.utf8().get_data()));
+	env->SetObjectArrayElement(result, 1, env->NewStringUTF(rendering_method.utf8().get_data()));
+
+	return result;
+}
+
 JNIEXPORT jstring JNICALL Java_org_godotengine_godot_GodotLib_getEditorSetting(JNIEnv *env, jclass clazz, jstring p_setting_key) {
 	String editor_setting_value = "";
 #ifdef TOOLS_ENABLED

platform/android/java_godot_lib_jni.h

@@ -61,6 +61,7 @@ JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_gyroscope(JNIEnv *env
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_focusin(JNIEnv *env, jclass clazz);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_focusout(JNIEnv *env, jclass clazz);
 JNIEXPORT jstring JNICALL Java_org_godotengine_godot_GodotLib_getGlobal(JNIEnv *env, jclass clazz, jstring path);
+JNIEXPORT jobjectArray JNICALL Java_org_godotengine_godot_GodotLib_getRendererInfo(JNIEnv *env, jclass clazz);
 JNIEXPORT jstring JNICALL Java_org_godotengine_godot_GodotLib_getEditorSetting(JNIEnv *env, jclass clazz, jstring p_setting_key);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_setEditorSetting(JNIEnv *env, jclass clazz, jstring p_key, jobject p_data);
 JNIEXPORT jobject JNICALL Java_org_godotengine_godot_GodotLib_getEditorProjectMetadata(JNIEnv *env, jclass clazz, jstring p_section, jstring p_key, jobject p_default_value);

platform/ios/export/export_plugin.cpp

@@ -2540,7 +2540,9 @@ bool EditorExportPlatformIOS::has_valid_export_configuration(const Ref<EditorExp
 		}
 	}
 
-	if (GLOBAL_GET("rendering/rendering_device/driver.ios") == "metal") {
+	String rendering_method = GLOBAL_GET("rendering/renderer/rendering_method.mobile");
+	String rendering_driver = GLOBAL_GET("rendering/rendering_device/driver.ios");
+	if ((rendering_method == "forward_plus" || rendering_method == "mobile") && rendering_driver == "metal") {
 		float version = p_preset->get("application/min_ios_version").operator String().to_float();
 		if (version < 14.0) {
 			err += TTR("Metal renderer require iOS 14+.") + "\n";

platform/macos/display_server_macos.mm

@@ -3791,8 +3791,11 @@ DisplayServerMacOS::DisplayServerMacOS(const String &p_rendering_driver, WindowM
 #if defined(VULKAN_ENABLED)
 #if defined(__x86_64__)
 	bool fallback_to_vulkan = GLOBAL_GET("rendering/rendering_device/fallback_to_vulkan");
+	if (!fallback_to_vulkan) {
+		WARN_PRINT("Metal is not supported on Intel Macs, switching to Vulkan.");
+	}
 	// Metal rendering driver not available on Intel.
-	if (fallback_to_vulkan && rendering_driver == "metal") {
+	if (rendering_driver == "metal") {
 		rendering_driver = "vulkan";
 		OS::get_singleton()->set_current_rendering_driver_name(rendering_driver);
 	}

platform/windows/display_server_windows.cpp

@@ -6764,24 +6764,30 @@ DisplayServerWindows::DisplayServerWindows(const String &p_rendering_driver, Win
 	_register_raw_input_devices(INVALID_WINDOW_ID);
 
 #if defined(RD_ENABLED)
+	bool fallback_to_vulkan = GLOBAL_GET("rendering/rendering_device/fallback_to_vulkan");
+	bool fallback_to_d3d12 = GLOBAL_GET("rendering/rendering_device/fallback_to_d3d12");
+
 #if defined(VULKAN_ENABLED)
 	if (rendering_driver == "vulkan") {
 		rendering_context = memnew(RenderingContextDriverVulkanWindows);
 		tested_drivers.set_flag(DRIVER_ID_RD_VULKAN);
 	}
+#else
+	fallback_to_d3d12 = true; // Always enable fallback if engine was built w/o other driver support.
 #endif
 #if defined(D3D12_ENABLED)
 	if (rendering_driver == "d3d12") {
 		rendering_context = memnew(RenderingContextDriverD3D12);
 		tested_drivers.set_flag(DRIVER_ID_RD_D3D12);
 	}
+#else
+	fallback_to_vulkan = true; // Always enable fallback if engine was built w/o other driver support.
 #endif
 
 	if (rendering_context) {
 		if (rendering_context->initialize() != OK) {
 			bool failed = true;
 #if defined(VULKAN_ENABLED)
-			bool fallback_to_vulkan = GLOBAL_GET("rendering/rendering_device/fallback_to_vulkan");
 			if (failed && fallback_to_vulkan && rendering_driver != "vulkan") {
 				memdelete(rendering_context);
 				rendering_context = memnew(RenderingContextDriverVulkanWindows);
@@ -6795,7 +6801,6 @@ DisplayServerWindows::DisplayServerWindows(const String &p_rendering_driver, Win
 			}
 #endif
 #if defined(D3D12_ENABLED)
-			bool fallback_to_d3d12 = GLOBAL_GET("rendering/rendering_device/fallback_to_d3d12");
 			if (failed && fallback_to_d3d12 && rendering_driver != "d3d12") {
 				memdelete(rendering_context);
 				rendering_context = memnew(RenderingContextDriverD3D12);