vkGetAccelerationStructureMemoryRequirementsNV(3)

# vkGetAccelerationStructureMemoryRequirementsNV(3) Manual Page

## Name

vkGetAccelerationStructureMemoryRequirementsNV - Get acceleration structure memory requirements

## C Specification

An acceleration structure has memory requirements for the structure object itself, scratch space for the build, and scratch space for the update.

To query the memory requirements call:

    void vkGetAccelerationStructureMemoryRequirementsNV(
        VkDevice                                    device,
        const VkAccelerationStructureMemoryRequirementsInfoNV* pInfo,
        VkMemoryRequirements2KHR*                   pMemoryRequirements);

## Parameters

- `device` is the logical device on which the acceleration structure was created.

- `pInfo` specifies the acceleration structure to get memory requirements for.

- `pMemoryRequirements` returns the requested acceleration structure memory requirements.

## Description

Valid Usage (Implicit)

- `device` must be a valid VkDevice handle

- `pInfo` must be a valid pointer to a valid VkAccelerationStructureMemoryRequirementsInfoNV structure

- `pMemoryRequirements` must be a valid pointer to a VkMemoryRequirements2KHR structure

## See Also

VkAccelerationStructureMemoryRequirementsInfoNV, VkDevice, VkMemoryRequirements2KHR

## 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 (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.