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);


  • 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.


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
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 graphics 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






See Also

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 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0