# VkRenderPassSubpassFeedbackInfoEXT(3) Manual Page

## Name

VkRenderPassSubpassFeedbackInfoEXT - Feedback about the creation of subpass

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## C Specification

The `VkRenderPassSubpassFeedbackInfoEXT` structure is defined as:

Warning | This functionality is deprecated by Vulkan Version 1.4. See Deprecated Functionality for more information.

    // Provided by VK_EXT_subpass_merge_feedback
    typedef struct VkRenderPassSubpassFeedbackInfoEXT {
        VkSubpassMergeStatusEXT    subpassMergeStatus;
        char                       description[VK_MAX_DESCRIPTION_SIZE];
        uint32_t                   postMergeIndex;
    } VkRenderPassSubpassFeedbackInfoEXT;

## Members

- `subpassMergeStatus` is a `VkSubpassMergeStatusEXT` value specifying information about whether the subpass is merged with the previous subpass and the reason why it is not merged.

- `description` is an array of `VK_MAX_DESCRIPTION_SIZE` `char` containing a null-terminated UTF-8 string which provides additional details.

- `postMergeIndex` is the subpass index after the subpass merging.

## Description

## See Also

VK_EXT_subpass_merge_feedback, VkRenderPassSubpassFeedbackCreateInfoEXT, VkSubpassMergeStatusEXT

## 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 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0