# VkPipelineColorBlendStateCreateFlagBits(3) Manual Page

## Name

VkPipelineColorBlendStateCreateFlagBits - Bitmask specifying additional parameters of an image

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## C Specification

Bits which can be set in the VkPipelineColorBlendStateCreateInfo::`flags` parameter are:

    // Provided by VK_EXT_rasterization_order_attachment_access
    typedef enum VkPipelineColorBlendStateCreateFlagBits {
      // Provided by VK_EXT_rasterization_order_attachment_access
        VK_PIPELINE_COLOR_BLEND_STATE_CREATE_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_BIT_EXT = 0x00000001,
      // Provided by VK_ARM_rasterization_order_attachment_access
        VK_PIPELINE_COLOR_BLEND_STATE_CREATE_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_BIT_ARM = VK_PIPELINE_COLOR_BLEND_STATE_CREATE_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_BIT_EXT,
    } VkPipelineColorBlendStateCreateFlagBits;

## Description

- `VK_PIPELINE_COLOR_BLEND_STATE_CREATE_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_BIT_EXT` specifies that access to color and input attachments will have implicit framebuffer-local memory dependencies, allowing applications to express custom blending operations in a fragment shader.

When `VK_PIPELINE_COLOR_BLEND_STATE_CREATE_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_BIT_EXT` is included in a pipeline, it forms a framebuffer-local memory dependency for each fragment generated by draw commands for that pipeline with the following scopes:

- The first synchronization scope includes the `VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT` pipeline stage executed by all previous fragments (as defined by primitive order) in the corresponding framebuffer regions including those generated by the same draw command.

- The second synchronization scope includes the `VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT` pipeline stage executed by the generated fragment.

- The first access scope includes all writes to color attachments.

- The second access scope includes all reads from input attachments.

## See Also

VK_EXT_rasterization_order_attachment_access, VkPipelineColorBlendStateCreateFlags

## 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