vkCmdSetExtraPrimitiveOverestimationSizeEXT(3)

# vkCmdSetExtraPrimitiveOverestimationSizeEXT(3) Manual Page

## Name

vkCmdSetExtraPrimitiveOverestimationSizeEXT - Specify the conservative rasterization extra primitive overestimation size dynamically for a command buffer

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## C Specification

To dynamically set the `extraPrimitiveOverestimationSize`, call:

    // Provided by VK_EXT_conservative_rasterization with VK_EXT_extended_dynamic_state3, VK_EXT_conservative_rasterization with VK_EXT_shader_object
    void vkCmdSetExtraPrimitiveOverestimationSizeEXT(
        VkCommandBuffer                             commandBuffer,
        float                                       extraPrimitiveOverestimationSize);

## Parameters

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

- `extraPrimitiveOverestimationSize` specifies the `extraPrimitiveOverestimationSize`.

## Description

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

Valid Usage

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

  - The `extendedDynamicState3ExtraPrimitiveOverestimationSize` feature is enabled

  - The `shaderObject` feature is enabled

- VUID-vkCmdSetExtraPrimitiveOverestimationSizeEXT-extraPrimitiveOverestimationSize-07428
  `extraPrimitiveOverestimationSize` must be in the range of `0.0` to `VkPhysicalDeviceConservativeRasterizationPropertiesEXT`::`maxExtraPrimitiveOverestimationSize` inclusive

Valid Usage (Implicit)

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

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

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

- VUID-vkCmdSetExtraPrimitiveOverestimationSizeEXT-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_conservative_rasterization, VK_EXT_extended_dynamic_state3, VK_EXT_shader_object, VkCommandBuffer

## 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0