vkCmdSetAlphaToOneEnableEXT(3)

C Specification

To dynamically set the alphaToOneEnable state, call:

// Provided by VK_EXT_extended_dynamic_state3, VK_EXT_shader_object
void vkCmdSetAlphaToOneEnableEXT(
    VkCommandBuffer                             commandBuffer,
    VkBool32                                    alphaToOneEnable);

Parameters

commandBuffer is the command buffer into which the command will be recorded.
alphaToOneEnable specifies the alphaToOneEnable state.

Description

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

Valid Usage

VUID-vkCmdSetAlphaToOneEnableEXT-None-09423
At least one of the following must be true:
- The extendedDynamicState3AlphaToOneEnable feature is enabled
- The shaderObject feature is enabled
VUID-vkCmdSetAlphaToOneEnableEXT-alphaToOne-07607
If the alphaToOne feature is not enabled, alphaToOneEnable must be VK_FALSE

Valid Usage (Implicit)

VUID-vkCmdSetAlphaToOneEnableEXT-commandBuffer-parameter
commandBuffer must be a valid VkCommandBuffer handle
VUID-vkCmdSetAlphaToOneEnableEXT-commandBuffer-recording
commandBuffer must be in the recording state
VUID-vkCmdSetAlphaToOneEnableEXT-commandBuffer-cmdpool
The VkCommandPool that commandBuffer was allocated from must support graphics operations
VUID-vkCmdSetAlphaToOneEnableEXT-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