vkCmdCopyImageToBuffer2(3)

# vkCmdCopyImageToBuffer2(3) Manual Page

## Name

vkCmdCopyImageToBuffer2 - Copy image data into a buffer

## C Specification

To copy data from an image object to a buffer object, call:

    // Provided by VK_VERSION_1_3
    void vkCmdCopyImageToBuffer2(
        VkCommandBuffer                             commandBuffer,
        const VkCopyImageToBufferInfo2*             pCopyImageToBufferInfo);

    // Provided by VK_KHR_copy_commands2
    // Equivalent to vkCmdCopyImageToBuffer2
    void vkCmdCopyImageToBuffer2KHR(
        VkCommandBuffer                             commandBuffer,
        const VkCopyImageToBufferInfo2*             pCopyImageToBufferInfo);

## Parameters

- `commandBuffer` is the command buffer into which the command will be recorded.

- `pCopyImageToBufferInfo` is a pointer to a VkCopyImageToBufferInfo2 structure describing the copy parameters.

## Description

This command is functionally identical to vkCmdCopyImageToBuffer, but includes extensible sub-structures that include `sType` and `pNext` parameters, allowing them to be more easily extended.

Valid Usage

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-01831
  If `commandBuffer` is an unprotected command buffer and `protectedNoFault` is not supported, `srcImage` must not be a protected image

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-01832
  If `commandBuffer` is an unprotected command buffer and `protectedNoFault` is not supported, `dstBuffer` must not be a protected buffer

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-01833
  If `commandBuffer` is a protected command buffer and `protectedNoFault` is not supported, `dstBuffer` must not be an unprotected buffer

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-07746
  If the `maintenance11` feature is not enabled, and the queue family used to create the VkCommandPool which `commandBuffer` was allocated from does not support VK_QUEUE_GRAPHICS_BIT or VK_QUEUE_COMPUTE_BIT, the `bufferOffset` member of any element of `pCopyImageToBufferInfo->pRegions` must be a multiple of `4`

- VUID-vkCmdCopyImageToBuffer2-imageOffset-07747
  The `imageOffset` and `imageExtent` members of each element of `pCopyImageToBufferInfo->pRegions` must respect the image transfer granularity requirements of `commandBuffer`’s command pool’s queue family, as described in VkQueueFamilyProperties

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-10216
  If the queue family used to create the VkCommandPool which `commandBuffer` was allocated from does not support VK_QUEUE_GRAPHICS_BIT, and the `maintenance10` feature is not enabled, for each element of `pCopyImageToBufferInfo->pRegions`, the `aspectMask` member of `imageSubresource` must not be VK_IMAGE_ASPECT_DEPTH_BIT or VK_IMAGE_ASPECT_STENCIL_BIT

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-11790
  If the queue family used to create the VkCommandPool which `commandBuffer` was allocated from does not support VK_QUEUE_GRAPHICS_BIT but does support VK_QUEUE_COMPUTE_BIT, and in any element of `pCopyImageToBufferInfo->pRegions` the `aspectMask` member of `imageSubresource` is VK_IMAGE_ASPECT_DEPTH_BIT, then the format features of `srcImage` must contain VK_FORMAT_FEATURE_2_DEPTH_COPY_ON_COMPUTE_QUEUE_BIT_KHR

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-11791
  If the queue family used to create the VkCommandPool which `commandBuffer` was allocated from does not support VK_QUEUE_GRAPHICS_BIT and VK_QUEUE_COMPUTE_BIT, but does support VK_QUEUE_TRANSFER_BIT, and in any element of `pCopyImageToBufferInfo->pRegions` the `aspectMask` member of `imageSubresource` is VK_IMAGE_ASPECT_DEPTH_BIT, then the format features of `srcImage` must contain VK_FORMAT_FEATURE_2_DEPTH_COPY_ON_TRANSFER_QUEUE_BIT_KHR

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-11792
  If the queue family used to create the VkCommandPool which `commandBuffer` was allocated from does not support VK_QUEUE_GRAPHICS_BIT but does support VK_QUEUE_COMPUTE_BIT, and in any element of `pCopyImageToBufferInfo->pRegions` the `aspectMask` member of `imageSubresource` is VK_IMAGE_ASPECT_STENCIL_BIT, then the format features of `srcImage` must contain VK_FORMAT_FEATURE_2_STENCIL_COPY_ON_COMPUTE_QUEUE_BIT_KHR

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-11793
  If the queue family used to create the VkCommandPool which `commandBuffer` was allocated from does not support VK_QUEUE_GRAPHICS_BIT and VK_QUEUE_COMPUTE_BIT, but does support VK_QUEUE_TRANSFER_BIT, and in any element of `pCopyImageToBufferInfo->pRegions` the `aspectMask` member of `imageSubresource` is VK_IMAGE_ASPECT_STENCIL_BIT, then the format features of `srcImage` must contain VK_FORMAT_FEATURE_2_STENCIL_COPY_ON_TRANSFER_QUEUE_BIT_KHR

Valid Usage (Implicit)

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-parameter
  `commandBuffer` must be a valid VkCommandBuffer handle

- VUID-vkCmdCopyImageToBuffer2-pCopyImageToBufferInfo-parameter
  `pCopyImageToBufferInfo` must be a valid pointer to a valid VkCopyImageToBufferInfo2 structure

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-recording
  `commandBuffer` must be in the recording state

- VUID-vkCmdCopyImageToBuffer2-commandBuffer-cmdpool
  The `VkCommandPool` that `commandBuffer` was allocated from must support VK_QUEUE_COMPUTE_BIT, VK_QUEUE_GRAPHICS_BIT, or VK_QUEUE_TRANSFER_BIT operations

- VUID-vkCmdCopyImageToBuffer2-renderpass
  This command must only be called outside of a render pass instance

- VUID-vkCmdCopyImageToBuffer2-suspended
  This command must not be called between suspended render pass instances

- VUID-vkCmdCopyImageToBuffer2-videocoding
  This command must only be called outside of a video coding scope

Host Synchronization

- Host access to `commandBuffer` must be externally synchronized

- Host access to the `VkCommandPool` that `commandBuffer` was allocated from must be externally synchronized

Command Properties

Command Buffer Levels | Render Pass Scope | Video Coding Scope | Supported Queue Types | Command Type
--- | --- | --- | --- | ---
Primary Secondary | Outside | Outside | VK_QUEUE_COMPUTE_BIT VK_QUEUE_GRAPHICS_BIT VK_QUEUE_TRANSFER_BIT | Action

Conditional Rendering

vkCmdCopyImageToBuffer2 is not affected by conditional rendering

## See Also

VK_KHR_copy_commands2, VK_VERSION_1_3, VkCommandBuffer, VkCopyImageToBufferInfo2

## 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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0