# vkCmdSetLineRasterizationModeEXT(3) Manual Page

## Name

vkCmdSetLineRasterizationModeEXT - Specify the line rasterization mode dynamically for a command buffer

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## C Specification

To dynamically set the `lineRasterizationMode` state, call:

    // Provided by VK_EXT_extended_dynamic_state3 with VK_EXT_line_rasterization, VK_EXT_line_rasterization with VK_EXT_shader_object
    void vkCmdSetLineRasterizationModeEXT(
        VkCommandBuffer                             commandBuffer,
        VkLineRasterizationModeEXT                  lineRasterizationMode);

## Parameters

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

- `lineRasterizationMode` specifies the `lineRasterizationMode` state.

## Description

This command sets the `lineRasterizationMode` state for subsequent drawing commands when drawing using shader objects, or when the graphics pipeline is created with `VK_DYNAMIC_STATE_LINE_RASTERIZATION_MODE_EXT` set in VkPipelineDynamicStateCreateInfo::`pDynamicStates`. Otherwise, this state is specified by the VkPipelineRasterizationLineStateCreateInfo::`lineRasterizationMode` value used to create the currently active pipeline.

Valid Usage

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

  - The `extendedDynamicState3LineRasterizationMode` feature is enabled

  - The `shaderObject` feature is enabled

- VUID-vkCmdSetLineRasterizationModeEXT-lineRasterizationMode-07418
  If `lineRasterizationMode` is `VK_LINE_RASTERIZATION_MODE_RECTANGULAR`, then the `rectangularLines` feature must be enabled

- VUID-vkCmdSetLineRasterizationModeEXT-lineRasterizationMode-07419
  If `lineRasterizationMode` is `VK_LINE_RASTERIZATION_MODE_BRESENHAM`, then the `bresenhamLines` feature must be enabled

- VUID-vkCmdSetLineRasterizationModeEXT-lineRasterizationMode-07420
  If `lineRasterizationMode` is `VK_LINE_RASTERIZATION_MODE_RECTANGULAR_SMOOTH`, then the `smoothLines` feature must be enabled

Valid Usage (Implicit)

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

- VUID-vkCmdSetLineRasterizationModeEXT-lineRasterizationMode-parameter
  `lineRasterizationMode` must be a valid VkLineRasterizationModeEXT value

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

- VUID-vkCmdSetLineRasterizationModeEXT-commandBuffer-cmdpool
  The `VkCommandPool` that `commandBuffer` was allocated from must support graphics operations

- VUID-vkCmdSetLineRasterizationModeEXT-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 | State

## See Also

VK_EXT_extended_dynamic_state3, VK_EXT_line_rasterization, VK_EXT_shader_object, VkCommandBuffer, VkLineRasterizationModeEXT

## 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