VulkanHub
Function Prototype

vkCmdSetFrontFace

Set front face orientation dynamically for a command buffer

To dynamically set the front face orientation, call:

void vkCmdSetFrontFaceEXT(
    VkCommandBuffer commandBuffer,
    VkFrontFace frontFace);
  • commandBuffer is the command buffer into which the command will be recorded.
  • frontFace is a VkFrontFace value specifying the front-facing triangle orientation to be used for culling.

This command sets the front face orientation for subsequent drawing commands when drawing using shader objects, or when the graphics pipeline is created with VK_DYNAMIC_STATE_FRONT_FACE set in VkPipelineDynamicStateCreateInfo::pDynamicStates. Otherwise, this state is specified by the VkPipelineRasterizationStateCreateInfo::frontFace value used to create the currently active pipeline.

Valid Usage

VUID-vkCmdSetFrontFace-None-08971

At least one of the following must be true:- the extendedDynamicState feature is enabled

Valid Usage (Implicit)

VUID-vkCmdSetFrontFace-commandBuffer-parameter

commandBuffer must be a valid VkCommandBuffer handle

VUID-vkCmdSetFrontFace-frontFace-parameter

frontFace must be a valid VkFrontFace value

VUID-vkCmdSetFrontFace-commandBuffer-recording

commandBuffer must be in the recording state

VUID-vkCmdSetFrontFace-commandBuffer-cmdpool

The VkCommandPool that commandBuffer was allocated from must support graphics operations

VUID-vkCmdSetFrontFace-videocoding

This command must only be called outside of a video coding scope

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Host Synchronization

  • Host access to commandBuffer must be externally synchronized
  • Host access to the VkCommandPool that commandBuffer was allocated from must be externally synchronized ::