# vkCmdSetCoarseSampleOrderNV(3) Manual Page

## Name

vkCmdSetCoarseSampleOrderNV - Set sample order for coarse fragments on a command buffer

## C Specification

If a pipeline state object is created with `VK_DYNAMIC_STATE_VIEWPORT_COARSE_SAMPLE_ORDER_NV` enabled, the order of coverage samples in fragments larger than one pixel is set by the command:

    void vkCmdSetCoarseSampleOrderNV(
        VkCommandBuffer                             commandBuffer,
        VkCoarseSampleOrderTypeNV                   sampleOrderType,
        uint32_t                                    customSampleOrderCount,
        const VkCoarseSampleOrderCustomNV*          pCustomSampleOrders);

## Parameters

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

- `sampleOrderType` specifies the mechanism used to order coverage samples in fragments larger than one pixel.

- `customSampleOrderCount` specifies the number of custom sample orderings to use when ordering coverage samples.

- `pCustomSampleOrders` is a pointer to an array of VkCoarseSampleOrderCustomNV structures, each of which specifies the coverage sample order for a single combination of fragment area and coverage sample count.

## Description

If `sampleOrderType` is `VK_COARSE_SAMPLE_ORDER_TYPE_CUSTOM_NV`, the coverage sample order used for any combination of fragment area and coverage sample count not enumerated in `pCustomSampleOrders` will be identical to that used for `VK_COARSE_SAMPLE_ORDER_TYPE_DEFAULT_NV`.

Valid Usage

- If `sampleOrderType` is not `VK_COARSE_SAMPLE_ORDER_TYPE_CUSTOM_NV`, `customSamplerOrderCount` must be `0`

- The array `pCustomSampleOrders` must not contain two structures with matching values for both the `shadingRate` and `sampleCount` members.

Valid Usage (Implicit)

- `commandBuffer` must be a valid VkCommandBuffer handle

- `sampleOrderType` must be a valid VkCoarseSampleOrderTypeNV value

- If `customSampleOrderCount` is not `0`, `pCustomSampleOrders` must be a valid pointer to an array of `customSampleOrderCount` valid VkCoarseSampleOrderCustomNV structures

- `commandBuffer` must be in the recording state

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

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 | Supported Queue Types | Pipeline Type
--- | --- | --- | ---
Primary Secondary | Both | Graphics |

## See Also

VkCoarseSampleOrderCustomNV, VkCoarseSampleOrderTypeNV, 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 (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.