Constant vk_mem_alloc::ffi::VmaAllocatorCreateFlagBits_VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT

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pub const VmaAllocatorCreateFlagBits_VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT: VmaAllocatorCreateFlagBits = 32;
Expand description

Enables usage of “buffer device address” feature, which allows you to use function vkGetBufferDeviceAddress* to get raw GPU pointer to a buffer and pass it for usage inside a shader.

You may set this flag only if you:

  1. (For Vulkan version < 1.2) Found as available and enabled device extension VK_KHR_buffer_device_address. This extension is promoted to core Vulkan 1.2.
  2. Found as available and enabled device feature VkPhysicalDeviceBufferDeviceAddressFeatures::bufferDeviceAddress.

When this flag is set, you can create buffers with VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT using VMA. The library automatically adds VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT to allocated memory blocks wherever it might be needed.

For more information, see documentation chapter \ref enabling_buffer_device_address.