# VkRenderPassCreationControlEXT(3) Manual Page

## Name

VkRenderPassCreationControlEXT - Control about the creation of render pass or subpass

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## C Specification

A `VkRenderPassCreationControlEXT` structure can be included in the `pNext` chain of `VkRenderPassCreateInfo2` or `pNext` chain of VkSubpassDescription2. The `VkRenderPassCreationControlEXT` structure is defined as:

    // Provided by VK_EXT_subpass_merge_feedback
    typedef struct VkRenderPassCreationControlEXT {
        VkStructureType    sType;
        const void*        pNext;
        VkBool32           disallowMerging;
    } VkRenderPassCreationControlEXT;

## Members

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

- `disallowMerging` is a boolean value indicating whether subpass merging will be disabled.

## Description

If a `VkRenderPassCreationControlEXT` structure is included in the `pNext` chain of VkRenderPassCreateInfo2 and its value of `disallowMerging` is `VK_TRUE`, the implementation will disable subpass merging for the entire render pass. If a `VkRenderPassCreationControlEXT` structure is included in the `pNext` chain of VkSubpassDescription2 and its value of `disallowMerging` is `VK_TRUE`, the implementation will disable merging the described subpass with previous subpasses in the render pass.

Valid Usage (Implicit)

- VUID-VkRenderPassCreationControlEXT-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_RENDER_PASS_CREATION_CONTROL_EXT`

## See Also

VK_EXT_subpass_merge_feedback, VkBool32, VkRenderPassCreateInfo2, VkStructureType, VkSubpassDescription2, vkCreateRenderPass2

## 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0