# vkCmdBeginConditionalRenderingEXT(3) Manual Page

## Name

vkCmdBeginConditionalRenderingEXT - Define the beginning of a conditional rendering block

Loading… please wait.

## C Specification

To begin conditional rendering, call:

    // Provided by VK_EXT_conditional_rendering
    void vkCmdBeginConditionalRenderingEXT(
        VkCommandBuffer                             commandBuffer,
        const VkConditionalRenderingBeginInfoEXT*   pConditionalRenderingBegin);

## Parameters

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

- `pConditionalRenderingBegin` is a pointer to a VkConditionalRenderingBeginInfoEXT structure specifying parameters of conditional rendering.

## Description

Valid Usage

- VUID-vkCmdBeginConditionalRenderingEXT-None-01980
  Conditional rendering must not already be active

Valid Usage (Implicit)

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

- VUID-vkCmdBeginConditionalRenderingEXT-pConditionalRenderingBegin-parameter
  `pConditionalRenderingBegin` must be a valid pointer to a valid VkConditionalRenderingBeginInfoEXT structure

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

- VUID-vkCmdBeginConditionalRenderingEXT-commandBuffer-cmdpool
  The `VkCommandPool` that `commandBuffer` was allocated from must support graphics, or compute operations

- VUID-vkCmdBeginConditionalRenderingEXT-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 | Both | Outside | Graphics Compute | Action State

## See Also

VK_EXT_conditional_rendering, VkCommandBuffer, VkConditionalRenderingBeginInfoEXT

## 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