# vkCmdSetExclusiveScissorNV(3) Manual Page

## Name

vkCmdSetExclusiveScissorNV - Set the dynamic exclusive scissor rectangles on a command buffer

## C Specification

If the pipeline state object is created with `VK_DYNAMIC_STATE_EXCLUSIVE_SCISSOR_NV` enabled, then the exclusive scissor rectangles are set by:

    void vkCmdSetExclusiveScissorNV(
        VkCommandBuffer                             commandBuffer,
        uint32_t                                    firstExclusiveScissor,
        uint32_t                                    exclusiveScissorCount,
        const VkRect2D*                             pExclusiveScissors);

## Parameters

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

- `firstExclusiveScissor` is the index of the first exclusive scissor rectangle whose state is updated by the command.

- `exclusiveScissorCount` is the number of exclusive scissor rectangles updated by the command.

- `pExclusiveScissors` is a pointer to an array of VkRect2D structures defining exclusive scissor rectangles.

## Description

The scissor rectangles taken from element i of `pExclusiveScissors` replace the current state for the scissor index `firstExclusiveScissor` + i, for i in [0, `exclusiveScissorCount`).

Each scissor rectangle is described by a VkRect2D structure, with the `offset.x` and `offset.y` values determining the upper left corner of the scissor rectangle, and the `extent.width` and `extent.height` values determining the size in pixels.

Valid Usage

- The exclusive scissor feature must be enabled.

- `firstExclusiveScissor` must be less than `VkPhysicalDeviceLimits`::`maxViewports`

- The sum of `firstExclusiveScissor` and `exclusiveScissorCount` must be between `1` and `VkPhysicalDeviceLimits`::`maxViewports`, inclusive

- If the multiple viewports feature is not enabled, `firstExclusiveScissor` must be `0`

- If the multiple viewports feature is not enabled, `exclusiveScissorCount` must be `1`

- The `x` and `y` members of `offset` in each member of `pExclusiveScissors` must be greater than or equal to `0`

- Evaluation of (`offset.x` + `extent.width`) for each member of `pExclusiveScissors` must not cause a signed integer addition overflow

- Evaluation of (`offset.y` + `extent.height`) for each member of `pExclusiveScissors` must not cause a signed integer addition overflow

Valid Usage (Implicit)

- `commandBuffer` must be a valid VkCommandBuffer handle

- `pExclusiveScissors` must be a valid pointer to an array of `exclusiveScissorCount` VkRect2D structures

- `commandBuffer` must be in the recording state

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

- `exclusiveScissorCount` must be greater than `0`

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

VkCommandBuffer, VkRect2D

## 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.