vkCmdSetColorBlendEnableEXT(3)

# vkCmdSetColorBlendEnableEXT(3) Manual Page

## Name

vkCmdSetColorBlendEnableEXT - Specify the pname:blendEnable for each attachment dynamically for a command buffer

## C Specification

To dynamically set `blendEnable`, call:

    // Provided by VK_EXT_extended_dynamic_state3, VK_EXT_shader_object
    void vkCmdSetColorBlendEnableEXT(
        VkCommandBuffer                             commandBuffer,
        uint32_t                                    firstAttachment,
        uint32_t                                    attachmentCount,
        const VkBool32*                             pColorBlendEnables);

## Parameters

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

- `firstAttachment` the first color attachment the color blending enable applies.

- `attachmentCount` the number of color blending enables in the `pColorBlendEnables` array.

- `pColorBlendEnables` an array of booleans to indicate whether color blending is enabled for the corresponding attachment.

## Description

This command sets the color blending enable of the specified color attachments for subsequent drawing commands when drawing using shader objects, or when the graphics pipeline is created with VK_DYNAMIC_STATE_COLOR_BLEND_ENABLE_EXT set in VkPipelineDynamicStateCreateInfo::`pDynamicStates`. Otherwise, this state is specified by the VkPipelineColorBlendAttachmentState::`blendEnable` values used to create the currently active pipeline.

Valid Usage

- VUID-vkCmdSetColorBlendEnableEXT-None-09423
  At least one of the following must be true:

  - The `extendedDynamicState3ColorBlendEnable` feature is enabled

  - The `shaderObject` feature is enabled

Valid Usage (Implicit)

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

- VUID-vkCmdSetColorBlendEnableEXT-pColorBlendEnables-parameter
  `pColorBlendEnables` must be a valid pointer to an array of `attachmentCount` VkBool32 values

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

- VUID-vkCmdSetColorBlendEnableEXT-commandBuffer-cmdpool
  The `VkCommandPool` that `commandBuffer` was allocated from must support VK_QUEUE_GRAPHICS_BIT operations

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

- VUID-vkCmdSetColorBlendEnableEXT-attachmentCount-arraylength
  `attachmentCount` must be greater than `0`

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 | VK_QUEUE_GRAPHICS_BIT | State

Conditional Rendering

vkCmdSetColorBlendEnableEXT is not affected by conditional rendering

## See Also

VK_EXT_extended_dynamic_state3, VK_EXT_shader_object, VkBool32, VkCommandBuffer

## 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