VkStridedDeviceAddressRegionKHR(3)

# VkStridedDeviceAddressRegionKHR(3) Manual Page

## Name

VkStridedDeviceAddressRegionKHR - Structure specifying a region of device addresses with a stride

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## C Specification

The `VkStridedDeviceAddressRegionKHR` structure is defined as:

    // Provided by VK_KHR_ray_tracing_pipeline
    typedef struct VkStridedDeviceAddressRegionKHR {
        VkDeviceAddress    deviceAddress;
        VkDeviceSize       stride;
        VkDeviceSize       size;
    } VkStridedDeviceAddressRegionKHR;

## Members

- `deviceAddress` is the device address (as returned by the vkGetBufferDeviceAddress command) at which the region starts, or zero if the region is unused.

- `stride` is the byte stride between consecutive elements.

- `size` is the size in bytes of the region starting at `deviceAddress`.

## Description

Valid Usage

- VUID-VkStridedDeviceAddressRegionKHR-size-04631
  If `size` is not zero, all addresses between `deviceAddress` and `deviceAddress` + `size` - 1 must be in the buffer device address range of the same buffer

- VUID-VkStridedDeviceAddressRegionKHR-size-04632
  If `size` is not zero, `stride` must be less than the size of the buffer from which `deviceAddress` was queried

## See Also

`VkDeviceAddress`, `VkDeviceSize`, vkCmdTraceRaysIndirectKHR, vkCmdTraceRaysKHR

## Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2021 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0