Merge pull request #100062 from thimenesup/rd_buffer_address

Implement Buffer Device Address for Rendering Device Vulkan and DirectX12

doc/classes/RenderingDevice.xml

@@ -81,6 +81,14 @@
 				[/codeblock]
 			</description>
 		</method>
+		<method name="buffer_get_device_address">
+			<return type="int" />
+			<param index="0" name="buffer" type="RID" />
+			<description>
+				Returns the address of the given [param buffer] which can be passed to shaders in any way to access underlying data. Buffer must have been created with this feature enabled.
+				[b]Note:[/b] You must check that the GPU supports this functionality by calling [method has_feature] with [constant SUPPORTS_BUFFER_DEVICE_ADDRESS] as a parameter.
+			</description>
+		</method>
 		<method name="buffer_update">
 			<return type="int" enum="Error" />
 			<param index="0" name="buffer" type="RID" />
@@ -672,6 +680,13 @@
 				This is only used by Vulkan in debug builds. Godot must also be started with the [code]--extra-gpu-memory-tracking[/code] [url=$DOCS_URL/tutorials/editor/command_line_tutorial.html]command line argument[/url].
 			</description>
 		</method>
+		<method name="has_feature" qualifiers="const">
+			<return type="bool" />
+			<param index="0" name="feature" type="int" enum="RenderingDevice.Features" />
+			<description>
+				Returns [code]true[/code] if the [param feature] is supported by the GPU.
+			</description>
+		</method>
 		<method name="index_array_create">
 			<return type="RID" />
 			<param index="0" name="index_buffer" type="RID" />
@@ -688,9 +703,11 @@
 			<param index="1" name="format" type="int" enum="RenderingDevice.IndexBufferFormat" />
 			<param index="2" name="data" type="PackedByteArray" default="PackedByteArray()" />
 			<param index="3" name="use_restart_indices" type="bool" default="false" />
+			<param index="4" name="enable_device_address" type="bool" default="false" />
 			<description>
 				Creates a new index buffer. It can be accessed with the RID that is returned.
 				Once finished with your RID, you will want to free the RID using the RenderingDevice's [method free_rid] method.
+				Optionally, set [param enable_device_address] if you wish to use [method buffer_get_device_address] functionality and the GPU supports it.
 			</description>
 		</method>
 		<method name="limit_get" qualifiers="const">
@@ -1056,9 +1073,11 @@
 			<return type="RID" />
 			<param index="0" name="size_bytes" type="int" />
 			<param index="1" name="data" type="PackedByteArray" default="PackedByteArray()" />
+			<param index="2" name="enable_device_address" type="bool" default="false" />
 			<description>
 				Creates a new uniform buffer. It can be accessed with the RID that is returned.
 				Once finished with your RID, you will want to free the RID using the RenderingDevice's [method free_rid] method.
+				Optionally, set [param enable_device_address] if you wish to use [method buffer_get_device_address] functionality and the GPU supports it.
 			</description>
 		</method>
 		<method name="uniform_set_create">
@@ -1093,9 +1112,11 @@
 			<param index="0" name="size_bytes" type="int" />
 			<param index="1" name="data" type="PackedByteArray" default="PackedByteArray()" />
 			<param index="2" name="use_as_storage" type="bool" default="false" />
+			<param index="3" name="enable_device_address" type="bool" default="false" />
 			<description>
 				It can be accessed with the RID that is returned.
 				Once finished with your RID, you will want to free the RID using the RenderingDevice's [method free_rid] method.
+				Optionally, set [param enable_device_address] if you wish to use [method buffer_get_device_address] functionality and the GPU supports it.
 			</description>
 		</method>
 		<method name="vertex_format_create">
@@ -2047,6 +2068,9 @@
 		</constant>
 		<constant name="STORAGE_BUFFER_USAGE_DISPATCH_INDIRECT" value="1" enum="StorageBufferUsage" is_bitfield="true">
 		</constant>
+		<constant name="STORAGE_BUFFER_USAGE_DEVICE_ADDRESS" value="2" enum="StorageBufferUsage" is_bitfield="true">
+			Allows usage of [method buffer_get_device_address] on supported GPUs.
+		</constant>
 		<constant name="UNIFORM_TYPE_SAMPLER" value="0" enum="UniformType">
 			Sampler uniform.
 		</constant>
@@ -2418,6 +2442,9 @@
 		<constant name="PIPELINE_SPECIALIZATION_CONSTANT_TYPE_FLOAT" value="2" enum="PipelineSpecializationConstantType">
 			Floating-point specialization constant.
 		</constant>
+		<constant name="SUPPORTS_BUFFER_DEVICE_ADDRESS" value="6" enum="Features">
+			Features support for buffer device address extension.
+		</constant>
 		<constant name="LIMIT_MAX_BOUND_UNIFORM_SETS" value="0" enum="Limit">
 			Maximum number of uniform sets that can be bound at a given time.
 		</constant>

drivers/d3d12/rendering_device_driver_d3d12.cpp

@@ -905,6 +905,11 @@ void RenderingDeviceDriverD3D12::buffer_unmap(BufferID p_buffer) {
 	buf_info->resource->Unmap(0, &VOID_RANGE);
 }
 
+uint64_t RenderingDeviceDriverD3D12::buffer_get_device_address(BufferID p_buffer) {
+	const BufferInfo *buf_info = (const BufferInfo *)p_buffer.id;
+	return buf_info->resource->GetGPUVirtualAddress();
+}
+
 /*****************/
 /**** TEXTURE ****/
 /*****************/
@@ -6271,6 +6276,8 @@ bool RenderingDeviceDriverD3D12::has_feature(Features p_feature) {
 			return vrs_capabilities.ss_image_supported;
 		case SUPPORTS_FRAGMENT_SHADER_WITH_ONLY_SIDE_EFFECTS:
 			return true;
+		case SUPPORTS_BUFFER_DEVICE_ADDRESS:
+			return true;
 		default:
 			return false;
 	}

drivers/d3d12/rendering_device_driver_d3d12.h

@@ -284,6 +284,7 @@ public:
 	virtual uint64_t buffer_get_allocation_size(BufferID p_buffer) override final;
 	virtual uint8_t *buffer_map(BufferID p_buffer) override final;
 	virtual void buffer_unmap(BufferID p_buffer) override final;
+	virtual uint64_t buffer_get_device_address(BufferID p_buffer) override final;
 
 	/*****************/
 	/**** TEXTURE ****/

drivers/metal/rendering_device_driver_metal.h

@@ -105,6 +105,7 @@ public:
 	virtual uint64_t buffer_get_allocation_size(BufferID p_buffer) override final;
 	virtual uint8_t *buffer_map(BufferID p_buffer) override final;
 	virtual void buffer_unmap(BufferID p_buffer) override final;
+	virtual uint64_t buffer_get_device_address(BufferID p_buffer) override final;
 
 #pragma mark - Texture
 

drivers/metal/rendering_device_driver_metal.mm

@@ -159,6 +159,15 @@ void RenderingDeviceDriverMetal::buffer_unmap(BufferID p_buffer) {
 	// Nothing to do.
 }
 
+uint64_t RenderingDeviceDriverMetal::buffer_get_device_address(BufferID p_buffer) {
+	if (@available(iOS 16.0, macOS 13.0, *)) {
+		id<MTLBuffer> obj = rid::get(p_buffer);
+		return obj.gpuAddress;
+	} else {
+		return 0;
+	}
+}
+
 #pragma mark - Texture
 
 #pragma mark - Format Conversions
@@ -4026,6 +4035,8 @@ bool RenderingDeviceDriverMetal::has_feature(Features p_feature) {
 			return false;
 		case SUPPORTS_FRAGMENT_SHADER_WITH_ONLY_SIDE_EFFECTS:
 			return true;
+		case SUPPORTS_BUFFER_DEVICE_ADDRESS:
+			return false;
 		case SUPPORTS_METALFX_SPATIAL:
 			return device_properties->features.metal_fx_spatial;
 		case SUPPORTS_METALFX_TEMPORAL:

drivers/vulkan/rendering_device_driver_vulkan.cpp

@@ -513,6 +513,7 @@ Error RenderingDeviceDriverVulkan::_initialize_device_extensions() {
 	_register_requested_device_extension(VK_EXT_PIPELINE_CREATION_CACHE_CONTROL_EXTENSION_NAME, false);
 	_register_requested_device_extension(VK_EXT_SUBGROUP_SIZE_CONTROL_EXTENSION_NAME, false);
 	_register_requested_device_extension(VK_EXT_ASTC_DECODE_MODE_EXTENSION_NAME, false);
+	_register_requested_device_extension(VK_KHR_BUFFER_DEVICE_ADDRESS_EXTENSION_NAME, false);
 
 	if (Engine::get_singleton()->is_generate_spirv_debug_info_enabled()) {
 		_register_requested_device_extension(VK_KHR_SHADER_NON_SEMANTIC_INFO_EXTENSION_NAME, true);
@@ -730,6 +731,7 @@ Error RenderingDeviceDriverVulkan::_check_device_capabilities() {
 		void *next_features = nullptr;
 		VkPhysicalDeviceVulkan12Features device_features_vk_1_2 = {};
 		VkPhysicalDeviceShaderFloat16Int8FeaturesKHR shader_features = {};
+		VkPhysicalDeviceBufferDeviceAddressFeaturesKHR buffer_device_address_features = {};
 		VkPhysicalDeviceFragmentShadingRateFeaturesKHR vrs_features = {};
 		VkPhysicalDevice16BitStorageFeaturesKHR storage_feature = {};
 		VkPhysicalDeviceMultiviewFeatures multiview_features = {};
@@ -740,10 +742,17 @@ Error RenderingDeviceDriverVulkan::_check_device_capabilities() {
 			device_features_vk_1_2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES;
 			device_features_vk_1_2.pNext = next_features;
 			next_features = &device_features_vk_1_2;
-		} else if (enabled_device_extension_names.has(VK_KHR_SHADER_FLOAT16_INT8_EXTENSION_NAME)) {
-			shader_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES_KHR;
-			shader_features.pNext = next_features;
-			next_features = &shader_features;
+		} else {
+			if (enabled_device_extension_names.has(VK_KHR_SHADER_FLOAT16_INT8_EXTENSION_NAME)) {
+				shader_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES_KHR;
+				shader_features.pNext = next_features;
+				next_features = &shader_features;
+			}
+			if (enabled_device_extension_names.has(VK_KHR_BUFFER_DEVICE_ADDRESS_EXTENSION_NAME)) {
+				buffer_device_address_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_BUFFER_DEVICE_ADDRESS_FEATURES_KHR;
+				buffer_device_address_features.pNext = next_features;
+				next_features = &buffer_device_address_features;
+			}
 		}
 
 		if (enabled_device_extension_names.has(VK_KHR_FRAGMENT_SHADING_RATE_EXTENSION_NAME)) {
@@ -783,11 +792,17 @@ Error RenderingDeviceDriverVulkan::_check_device_capabilities() {
 				shader_capabilities.shader_float16_is_supported = device_features_vk_1_2.shaderFloat16;
 				shader_capabilities.shader_int8_is_supported = device_features_vk_1_2.shaderInt8;
 			}
+			if (enabled_device_extension_names.has(VK_KHR_BUFFER_DEVICE_ADDRESS_EXTENSION_NAME)) {
+				buffer_device_address_support = device_features_vk_1_2.bufferDeviceAddress;
+			}
 		} else {
 			if (enabled_device_extension_names.has(VK_KHR_SHADER_FLOAT16_INT8_EXTENSION_NAME)) {
 				shader_capabilities.shader_float16_is_supported = shader_features.shaderFloat16;
 				shader_capabilities.shader_int8_is_supported = shader_features.shaderInt8;
 			}
+			if (enabled_device_extension_names.has(VK_KHR_BUFFER_DEVICE_ADDRESS_EXTENSION_NAME)) {
+				buffer_device_address_support = buffer_device_address_features.bufferDeviceAddress;
+			}
 		}
 
 		if (enabled_device_extension_names.has(VK_KHR_FRAGMENT_SHADING_RATE_EXTENSION_NAME)) {
@@ -971,6 +986,14 @@ Error RenderingDeviceDriverVulkan::_initialize_device(const LocalVector<VkDevice
 	shader_features.shaderInt8 = shader_capabilities.shader_int8_is_supported;
 	create_info_next = &shader_features;
 
+	VkPhysicalDeviceBufferDeviceAddressFeaturesKHR buffer_device_address_features = {};
+	if (buffer_device_address_support) {
+		buffer_device_address_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_BUFFER_DEVICE_ADDRESS_FEATURES_KHR;
+		buffer_device_address_features.pNext = create_info_next;
+		buffer_device_address_features.bufferDeviceAddress = buffer_device_address_support;
+		create_info_next = &buffer_device_address_features;
+	}
+
 	VkPhysicalDeviceFragmentShadingRateFeaturesKHR vrs_features = {};
 	if (vrs_capabilities.pipeline_vrs_supported || vrs_capabilities.primitive_vrs_supported || vrs_capabilities.attachment_vrs_supported) {
 		vrs_features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FRAGMENT_SHADING_RATE_FEATURES_KHR;
@@ -1112,6 +1135,9 @@ Error RenderingDeviceDriverVulkan::_initialize_allocator() {
 	if (use_1_3_features) {
 		allocator_info.flags |= VMA_ALLOCATOR_CREATE_KHR_MAINTENANCE5_BIT;
 	}
+	if (buffer_device_address_support) {
+		allocator_info.flags |= VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT;
+	}
 	VkResult err = vmaCreateAllocator(&allocator_info, &allocator);
 	ERR_FAIL_COND_V_MSG(err, ERR_CANT_CREATE, "vmaCreateAllocator failed with error " + itos(err) + ".");
 
@@ -1487,6 +1513,7 @@ static_assert(ENUM_MEMBERS_EQUAL(RDD::BUFFER_USAGE_STORAGE_BIT, VK_BUFFER_USAGE_
 static_assert(ENUM_MEMBERS_EQUAL(RDD::BUFFER_USAGE_INDEX_BIT, VK_BUFFER_USAGE_INDEX_BUFFER_BIT));
 static_assert(ENUM_MEMBERS_EQUAL(RDD::BUFFER_USAGE_VERTEX_BIT, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT));
 static_assert(ENUM_MEMBERS_EQUAL(RDD::BUFFER_USAGE_INDIRECT_BIT, VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT));
+static_assert(ENUM_MEMBERS_EQUAL(RDD::BUFFER_USAGE_DEVICE_ADDRESS_BIT, VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT));
 
 RDD::BufferID RenderingDeviceDriverVulkan::buffer_create(uint64_t p_size, BitField<BufferUsageBits> p_usage, MemoryAllocationType p_allocation_type) {
 	VkBufferCreateInfo create_info = {};
@@ -1588,6 +1615,15 @@ void RenderingDeviceDriverVulkan::buffer_unmap(BufferID p_buffer) {
 	vmaUnmapMemory(allocator, buf_info->allocation.handle);
 }
 
+uint64_t RenderingDeviceDriverVulkan::buffer_get_device_address(BufferID p_buffer) {
+	const BufferInfo *buf_info = (const BufferInfo *)p_buffer.id;
+	VkBufferDeviceAddressInfo address_info = {};
+	address_info.sType = VK_STRUCTURE_TYPE_BUFFER_DEVICE_ADDRESS_INFO;
+	address_info.pNext = nullptr;
+	address_info.buffer = buf_info->vk_buffer;
+	return vkGetBufferDeviceAddress(vk_device, &address_info);
+}
+
 /*****************/
 /**** TEXTURE ****/
 /*****************/
@@ -5874,6 +5910,8 @@ bool RenderingDeviceDriverVulkan::has_feature(Features p_feature) {
 			return vrs_capabilities.attachment_vrs_supported && physical_device_features.shaderStorageImageExtendedFormats;
 		case SUPPORTS_FRAGMENT_SHADER_WITH_ONLY_SIDE_EFFECTS:
 			return true;
+		case SUPPORTS_BUFFER_DEVICE_ADDRESS:
+			return buffer_device_address_support;
 		default:
 			return false;
 	}

drivers/vulkan/rendering_device_driver_vulkan.h

@@ -138,6 +138,7 @@ class RenderingDeviceDriverVulkan : public RenderingDeviceDriver {
 	VRSCapabilities vrs_capabilities;
 	ShaderCapabilities shader_capabilities;
 	StorageBufferCapabilities storage_buffer_capabilities;
+	bool buffer_device_address_support = false;
 	bool pipeline_cache_control_support = false;
 	bool device_fault_support = false;
 #if defined(VK_TRACK_DEVICE_MEMORY)
@@ -204,6 +205,7 @@ public:
 	virtual uint64_t buffer_get_allocation_size(BufferID p_buffer) override final;
 	virtual uint8_t *buffer_map(BufferID p_buffer) override final;
 	virtual void buffer_unmap(BufferID p_buffer) override final;
+	virtual uint64_t buffer_get_device_address(BufferID p_buffer) override final;
 
 	/*****************/
 	/**** TEXTURE ****/

misc/extension_api_validation/4.3-stable.expected

@@ -285,3 +285,12 @@ GH-101482
 Validate extension JSON: Error: Field 'classes/RichTextLabel/methods/set_table_column_expand/arguments': size changed value in new API, from 3 to 4.
 
 Added optional "shrink" argument. Compatibility method registered.
+
+
+GH-100062
+--------
+Validate extension JSON: Error: Field 'classes/RenderingDevice/methods/index_buffer_create/arguments': size changed value in new API, from 4 to 5.
+Validate extension JSON: Error: Field 'classes/RenderingDevice/methods/uniform_buffer_create/arguments': size changed value in new API, from 2 to 3.
+Validate extension JSON: Error: Field 'classes/RenderingDevice/methods/vertex_buffer_create/arguments': size changed value in new API, from 3 to 4.
+
+Optional argument added. Compatibility methods registered.

servers/rendering/rendering_device.compat.inc

@@ -143,6 +143,18 @@ RenderingDevice::FramebufferFormatID RenderingDevice::_screen_get_framebuffer_fo
 	return screen_get_framebuffer_format(DisplayServer::MAIN_WINDOW_ID);
 }
 
+RID RenderingDevice::_uniform_buffer_create_bind_compat_100062(uint32_t p_size_bytes, const Vector<uint8_t> &p_data) {
+	return uniform_buffer_create(p_size_bytes, p_data, false);
+}
+
+RID RenderingDevice::_vertex_buffer_create_bind_compat_100062(uint32_t p_size_bytes, const Vector<uint8_t> &p_data, bool p_use_as_storage) {
+	return vertex_buffer_create(p_size_bytes, p_data, p_use_as_storage, false);
+}
+
+RID RenderingDevice::_index_buffer_create_bind_compat_100062(uint32_t p_size_indices, IndexBufferFormat p_format, const Vector<uint8_t> &p_data, bool p_use_restart_indices) {
+	return index_buffer_create(p_size_indices, p_format, p_data, p_use_restart_indices, false);
+}
+
 void RenderingDevice::_bind_compatibility_methods() {
 	ClassDB::bind_compatibility_method(D_METHOD("shader_create_from_bytecode", "binary_data"), &RenderingDevice::_shader_create_from_bytecode_bind_compat_79606);
 
@@ -166,6 +178,10 @@ void RenderingDevice::_bind_compatibility_methods() {
 	ClassDB::bind_compatibility_method(D_METHOD("draw_list_begin", "framebuffer", "initial_color_action", "final_color_action", "initial_depth_action", "final_depth_action", "clear_color_values", "clear_depth", "clear_stencil", "region"), &RenderingDevice::_draw_list_begin_bind_compat_90993, DEFVAL(Vector<Color>()), DEFVAL(1.0), DEFVAL(0), DEFVAL(Rect2()));
 
 	ClassDB::bind_compatibility_method(D_METHOD("draw_list_begin", "framebuffer", "initial_color_action", "final_color_action", "initial_depth_action", "final_depth_action", "clear_color_values", "clear_depth", "clear_stencil", "region", "breadcrumb"), &RenderingDevice::_draw_list_begin_bind_compat_98670, DEFVAL(Vector<Color>()), DEFVAL(1.0), DEFVAL(0), DEFVAL(Rect2()), DEFVAL(0));
+
+	ClassDB::bind_compatibility_method(D_METHOD("uniform_buffer_create"), &RenderingDevice::_uniform_buffer_create_bind_compat_100062, DEFVAL(Vector<uint8_t>()));
+	ClassDB::bind_compatibility_method(D_METHOD("vertex_buffer_create"), &RenderingDevice::_vertex_buffer_create_bind_compat_100062, DEFVAL(Vector<uint8_t>()), DEFVAL(false));
+	ClassDB::bind_compatibility_method(D_METHOD("index_buffer_create"), &RenderingDevice::_index_buffer_create_bind_compat_100062, DEFVAL(Vector<uint8_t>()), DEFVAL(false));
 }
 
 #endif

servers/rendering/rendering_device.cpp

@@ -786,6 +786,16 @@ Error RenderingDevice::buffer_get_data_async(RID p_buffer, const Callable &p_cal
 	return OK;
 }
 
+uint64_t RenderingDevice::buffer_get_device_address(RID p_buffer) {
+	ERR_RENDER_THREAD_GUARD_V(0);
+
+	Buffer *buffer = _get_buffer_from_owner(p_buffer);
+	ERR_FAIL_NULL_V_MSG(buffer, 0, "Buffer argument is not a valid buffer of any type.");
+	ERR_FAIL_COND_V_MSG(!buffer->usage.has_flag(RDD::BUFFER_USAGE_DEVICE_ADDRESS_BIT), 0, "Buffer was not created with device address flag.");
+
+	return driver->buffer_get_device_address(buffer->driver_id);
+}
+
 RID RenderingDevice::storage_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data, BitField<StorageBufferUsage> p_usage) {
 	ERR_FAIL_COND_V(p_data.size() && (uint32_t)p_data.size() != p_size_bytes, RID());
 
@@ -795,6 +805,14 @@ RID RenderingDevice::storage_buffer_create(uint32_t p_size_bytes, const Vector<u
 	if (p_usage.has_flag(STORAGE_BUFFER_USAGE_DISPATCH_INDIRECT)) {
 		buffer.usage.set_flag(RDD::BUFFER_USAGE_INDIRECT_BIT);
 	}
+	if (p_usage.has_flag(STORAGE_BUFFER_USAGE_DEVICE_ADDRESS)) {
+#ifdef DEBUG_ENABLED
+		ERR_FAIL_COND_V_MSG(!has_feature(SUPPORTS_BUFFER_DEVICE_ADDRESS), RID(),
+				"The GPU doesn't support buffer address flag.");
+#endif
+
+		buffer.usage.set_flag(RDD::BUFFER_USAGE_DEVICE_ADDRESS_BIT);
+	}
 	buffer.driver_id = driver->buffer_create(buffer.size, buffer.usage, RDD::MEMORY_ALLOCATION_TYPE_GPU);
 	ERR_FAIL_COND_V(!buffer.driver_id, RID());
 
@@ -2960,7 +2978,7 @@ bool RenderingDevice::sampler_is_format_supported_for_filter(DataFormat p_format
 /**** VERTEX BUFFER ****/
 /***********************/
 
-RID RenderingDevice::vertex_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data, bool p_use_as_storage) {
+RID RenderingDevice::vertex_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data, bool p_use_as_storage, bool p_enable_device_address) {
 	ERR_FAIL_COND_V(p_data.size() && (uint32_t)p_data.size() != p_size_bytes, RID());
 
 	Buffer buffer;
@@ -2969,6 +2987,9 @@ RID RenderingDevice::vertex_buffer_create(uint32_t p_size_bytes, const Vector<ui
 	if (p_use_as_storage) {
 		buffer.usage.set_flag(RDD::BUFFER_USAGE_STORAGE_BIT);
 	}
+	if (p_enable_device_address) {
+		buffer.usage.set_flag(RDD::BUFFER_USAGE_DEVICE_ADDRESS_BIT);
+	}
 	buffer.driver_id = driver->buffer_create(buffer.size, buffer.usage, RDD::MEMORY_ALLOCATION_TYPE_GPU);
 	ERR_FAIL_COND_V(!buffer.driver_id, RID());
 
@@ -3099,7 +3120,7 @@ RID RenderingDevice::vertex_array_create(uint32_t p_vertex_count, VertexFormatID
 	return id;
 }
 
-RID RenderingDevice::index_buffer_create(uint32_t p_index_count, IndexBufferFormat p_format, const Vector<uint8_t> &p_data, bool p_use_restart_indices) {
+RID RenderingDevice::index_buffer_create(uint32_t p_index_count, IndexBufferFormat p_format, const Vector<uint8_t> &p_data, bool p_use_restart_indices, bool p_enable_device_address) {
 	ERR_FAIL_COND_V(p_index_count == 0, RID());
 
 	IndexBuffer index_buffer;
@@ -3138,6 +3159,9 @@ RID RenderingDevice::index_buffer_create(uint32_t p_index_count, IndexBufferForm
 #endif
 	index_buffer.size = size_bytes;
 	index_buffer.usage = (RDD::BUFFER_USAGE_TRANSFER_FROM_BIT | RDD::BUFFER_USAGE_TRANSFER_TO_BIT | RDD::BUFFER_USAGE_INDEX_BIT);
+	if (p_enable_device_address) {
+		index_buffer.usage.set_flag(RDD::BUFFER_USAGE_DEVICE_ADDRESS_BIT);
+	}
 	index_buffer.driver_id = driver->buffer_create(index_buffer.size, index_buffer.usage, RDD::MEMORY_ALLOCATION_TYPE_GPU);
 	ERR_FAIL_COND_V(!index_buffer.driver_id, RID());
 
@@ -3346,12 +3370,15 @@ uint64_t RenderingDevice::shader_get_vertex_input_attribute_mask(RID p_shader) {
 /**** UNIFORMS ****/
 /******************/
 
-RID RenderingDevice::uniform_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data) {
+RID RenderingDevice::uniform_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data, bool p_enable_device_address) {
 	ERR_FAIL_COND_V(p_data.size() && (uint32_t)p_data.size() != p_size_bytes, RID());
 
 	Buffer buffer;
 	buffer.size = p_size_bytes;
 	buffer.usage = (RDD::BUFFER_USAGE_TRANSFER_TO_BIT | RDD::BUFFER_USAGE_UNIFORM_BIT);
+	if (p_enable_device_address) {
+		buffer.usage.set_flag(RDD::BUFFER_USAGE_DEVICE_ADDRESS_BIT);
+	}
 	buffer.driver_id = driver->buffer_create(buffer.size, buffer.usage, RDD::MEMORY_ALLOCATION_TYPE_GPU);
 	ERR_FAIL_COND_V(!buffer.driver_id, RID());
 
@@ -7267,11 +7294,11 @@ void RenderingDevice::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("sampler_create", "state"), &RenderingDevice::_sampler_create);
 	ClassDB::bind_method(D_METHOD("sampler_is_format_supported_for_filter", "format", "sampler_filter"), &RenderingDevice::sampler_is_format_supported_for_filter);
 
-	ClassDB::bind_method(D_METHOD("vertex_buffer_create", "size_bytes", "data", "use_as_storage"), &RenderingDevice::vertex_buffer_create, DEFVAL(Vector<uint8_t>()), DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("vertex_buffer_create", "size_bytes", "data", "use_as_storage", "enable_device_address"), &RenderingDevice::vertex_buffer_create, DEFVAL(Vector<uint8_t>()), DEFVAL(false), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("vertex_format_create", "vertex_descriptions"), &RenderingDevice::_vertex_format_create);
 	ClassDB::bind_method(D_METHOD("vertex_array_create", "vertex_count", "vertex_format", "src_buffers", "offsets"), &RenderingDevice::_vertex_array_create, DEFVAL(Vector<int64_t>()));
 
-	ClassDB::bind_method(D_METHOD("index_buffer_create", "size_indices", "format", "data", "use_restart_indices"), &RenderingDevice::index_buffer_create, DEFVAL(Vector<uint8_t>()), DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("index_buffer_create", "size_indices", "format", "data", "use_restart_indices", "enable_device_address"), &RenderingDevice::index_buffer_create, DEFVAL(Vector<uint8_t>()), DEFVAL(false), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("index_array_create", "index_buffer", "index_offset", "index_count"), &RenderingDevice::index_array_create);
 
 	ClassDB::bind_method(D_METHOD("shader_compile_spirv_from_source", "shader_source", "allow_cache"), &RenderingDevice::_shader_compile_spirv_from_source, DEFVAL(true));
@@ -7282,7 +7309,7 @@ void RenderingDevice::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("shader_get_vertex_input_attribute_mask", "shader"), &RenderingDevice::shader_get_vertex_input_attribute_mask);
 
-	ClassDB::bind_method(D_METHOD("uniform_buffer_create", "size_bytes", "data"), &RenderingDevice::uniform_buffer_create, DEFVAL(Vector<uint8_t>()));
+	ClassDB::bind_method(D_METHOD("uniform_buffer_create", "size_bytes", "data", "enable_device_address"), &RenderingDevice::uniform_buffer_create, DEFVAL(Vector<uint8_t>()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("storage_buffer_create", "size_bytes", "data", "usage"), &RenderingDevice::storage_buffer_create, DEFVAL(Vector<uint8_t>()), DEFVAL(0));
 	ClassDB::bind_method(D_METHOD("texture_buffer_create", "size_bytes", "format", "data"), &RenderingDevice::texture_buffer_create, DEFVAL(Vector<uint8_t>()));
 
@@ -7294,6 +7321,7 @@ void RenderingDevice::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("buffer_clear", "buffer", "offset", "size_bytes"), &RenderingDevice::buffer_clear);
 	ClassDB::bind_method(D_METHOD("buffer_get_data", "buffer", "offset_bytes", "size_bytes"), &RenderingDevice::buffer_get_data, DEFVAL(0), DEFVAL(0));
 	ClassDB::bind_method(D_METHOD("buffer_get_data_async", "buffer", "callback", "offset_bytes", "size_bytes"), &RenderingDevice::buffer_get_data_async, DEFVAL(0), DEFVAL(0));
+	ClassDB::bind_method(D_METHOD("buffer_get_device_address", "buffer"), &RenderingDevice::buffer_get_device_address);
 
 	ClassDB::bind_method(D_METHOD("render_pipeline_create", "shader", "framebuffer_format", "vertex_format", "primitive", "rasterization_state", "multisample_state", "stencil_state", "color_blend_state", "dynamic_state_flags", "for_render_pass", "specialization_constants"), &RenderingDevice::_render_pipeline_create, DEFVAL(0), DEFVAL(0), DEFVAL(TypedArray<RDPipelineSpecializationConstant>()));
 	ClassDB::bind_method(D_METHOD("render_pipeline_is_valid", "render_pipeline"), &RenderingDevice::render_pipeline_is_valid);
@@ -7350,6 +7378,7 @@ void RenderingDevice::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_captured_timestamp_cpu_time", "index"), &RenderingDevice::get_captured_timestamp_cpu_time);
 	ClassDB::bind_method(D_METHOD("get_captured_timestamp_name", "index"), &RenderingDevice::get_captured_timestamp_name);
 
+	ClassDB::bind_method(D_METHOD("has_feature", "feature"), &RenderingDevice::has_feature);
 	ClassDB::bind_method(D_METHOD("limit_get", "limit"), &RenderingDevice::limit_get);
 	ClassDB::bind_method(D_METHOD("get_frame_delay"), &RenderingDevice::get_frame_delay);
 	ClassDB::bind_method(D_METHOD("submit"), &RenderingDevice::submit);
@@ -7724,6 +7753,7 @@ void RenderingDevice::_bind_methods() {
 	BIND_ENUM_CONSTANT(INDEX_BUFFER_FORMAT_UINT32);
 
 	BIND_BITFIELD_FLAG(STORAGE_BUFFER_USAGE_DISPATCH_INDIRECT);
+	BIND_BITFIELD_FLAG(STORAGE_BUFFER_USAGE_DEVICE_ADDRESS);
 
 	BIND_ENUM_CONSTANT(UNIFORM_TYPE_SAMPLER); //for sampling only (sampler GLSL type)
 	BIND_ENUM_CONSTANT(UNIFORM_TYPE_SAMPLER_WITH_TEXTURE); // for sampling only); but includes a texture); (samplerXX GLSL type)); first a sampler then a texture
@@ -7868,6 +7898,8 @@ void RenderingDevice::_bind_methods() {
 	BIND_ENUM_CONSTANT(PIPELINE_SPECIALIZATION_CONSTANT_TYPE_INT);
 	BIND_ENUM_CONSTANT(PIPELINE_SPECIALIZATION_CONSTANT_TYPE_FLOAT);
 
+	BIND_ENUM_CONSTANT(SUPPORTS_BUFFER_DEVICE_ADDRESS);
+
 	BIND_ENUM_CONSTANT(LIMIT_MAX_BOUND_UNIFORM_SETS);
 	BIND_ENUM_CONSTANT(LIMIT_MAX_FRAMEBUFFER_COLOR_ATTACHMENTS);
 	BIND_ENUM_CONSTANT(LIMIT_MAX_TEXTURES_PER_UNIFORM_SET);

servers/rendering/rendering_device.h

@@ -222,6 +222,7 @@ public:
 	Error buffer_clear(RID p_buffer, uint32_t p_offset, uint32_t p_size);
 	Vector<uint8_t> buffer_get_data(RID p_buffer, uint32_t p_offset = 0, uint32_t p_size = 0); // This causes stall, only use to retrieve large buffers for saving.
 	Error buffer_get_data_async(RID p_buffer, const Callable &p_callback, uint32_t p_offset = 0, uint32_t p_size = 0);
+	uint64_t buffer_get_device_address(RID p_buffer);
 
 private:
 	/******************/
@@ -753,13 +754,13 @@ private:
 	RID_Owner<IndexArray, true> index_array_owner;
 
 public:
-	RID vertex_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data = Vector<uint8_t>(), bool p_use_as_storage = false);
+	RID vertex_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data = Vector<uint8_t>(), bool p_use_as_storage = false, bool p_enable_device_address = false);
 
 	// This ID is warranted to be unique for the same formats, does not need to be freed
 	VertexFormatID vertex_format_create(const Vector<VertexAttribute> &p_vertex_descriptions);
 	RID vertex_array_create(uint32_t p_vertex_count, VertexFormatID p_vertex_format, const Vector<RID> &p_src_buffers, const Vector<uint64_t> &p_offsets = Vector<uint64_t>());
 
-	RID index_buffer_create(uint32_t p_size_indices, IndexBufferFormat p_format, const Vector<uint8_t> &p_data = Vector<uint8_t>(), bool p_use_restart_indices = false);
+	RID index_buffer_create(uint32_t p_size_indices, IndexBufferFormat p_format, const Vector<uint8_t> &p_data = Vector<uint8_t>(), bool p_use_restart_indices = false, bool p_enable_device_address = false);
 	RID index_array_create(RID p_index_buffer, uint32_t p_index_offset, uint32_t p_index_count);
 
 	/****************/
@@ -893,6 +894,10 @@ private:
 	DrawListID _draw_list_begin_bind_compat_90993(RID p_framebuffer, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector<Color> &p_clear_color_values, float p_clear_depth, uint32_t p_clear_stencil, const Rect2 &p_region);
 
 	DrawListID _draw_list_begin_bind_compat_98670(RID p_framebuffer, InitialAction p_initial_color_action, FinalAction p_final_color_action, InitialAction p_initial_depth_action, FinalAction p_final_depth_action, const Vector<Color> &p_clear_color_values, float p_clear_depth, uint32_t p_clear_stencil, const Rect2 &p_region, uint32_t p_breadcrumb);
+
+	RID _uniform_buffer_create_bind_compat_100062(uint32_t p_size_bytes, const Vector<uint8_t> &p_data);
+	RID _vertex_buffer_create_bind_compat_100062(uint32_t p_size_bytes, const Vector<uint8_t> &p_data, bool p_use_as_storage);
+	RID _index_buffer_create_bind_compat_100062(uint32_t p_size_indices, IndexBufferFormat p_format, const Vector<uint8_t> &p_data, bool p_use_restart_indices);
 #endif
 
 public:
@@ -926,14 +931,15 @@ public:
 	String get_perf_report() const;
 
 	enum StorageBufferUsage {
-		STORAGE_BUFFER_USAGE_DISPATCH_INDIRECT = 1,
+		STORAGE_BUFFER_USAGE_DISPATCH_INDIRECT = (1 << 0),
+		STORAGE_BUFFER_USAGE_DEVICE_ADDRESS = (1 << 1),
 	};
 
 	/*****************/
 	/**** BUFFERS ****/
 	/*****************/
 
-	RID uniform_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data = Vector<uint8_t>());
+	RID uniform_buffer_create(uint32_t p_size_bytes, const Vector<uint8_t> &p_data = Vector<uint8_t>(), bool p_enable_device_address = false);
 	RID storage_buffer_create(uint32_t p_size, const Vector<uint8_t> &p_data = Vector<uint8_t>(), BitField<StorageBufferUsage> p_usage = 0);
 
 	RID texture_buffer_create(uint32_t p_size_elements, DataFormat p_format, const Vector<uint8_t> &p_data = Vector<uint8_t>());

servers/rendering/rendering_device_commons.h

@@ -885,6 +885,7 @@ public:
 		SUPPORTS_METALFX_TEMPORAL,
 		// If not supported, a fragment shader with only side effects (i.e., writes  to buffers, but doesn't output to attachments), may be optimized down to no-op by the GPU driver.
 		SUPPORTS_FRAGMENT_SHADER_WITH_ONLY_SIDE_EFFECTS,
+		SUPPORTS_BUFFER_DEVICE_ADDRESS,
 	};
 
 	enum SubgroupOperations {

servers/rendering/rendering_device_driver.h

@@ -197,6 +197,7 @@ public:
 		BUFFER_USAGE_INDEX_BIT = (1 << 6),
 		BUFFER_USAGE_VERTEX_BIT = (1 << 7),
 		BUFFER_USAGE_INDIRECT_BIT = (1 << 8),
+		BUFFER_USAGE_DEVICE_ADDRESS_BIT = (1 << 17),
 	};
 
 	enum {
@@ -210,6 +211,8 @@ public:
 	virtual uint64_t buffer_get_allocation_size(BufferID p_buffer) = 0;
 	virtual uint8_t *buffer_map(BufferID p_buffer) = 0;
 	virtual void buffer_unmap(BufferID p_buffer) = 0;
+	// Only for a buffer with BUFFER_USAGE_DEVICE_ADDRESS_BIT.
+	virtual uint64_t buffer_get_device_address(BufferID p_buffer) = 0;
 
 	/*****************/
 	/**** TEXTURE ****/