vkCmdSetScissorWithCount(3)

C Specification

To dynamically set the scissor count and scissor rectangular bounds, call:

// Provided by VK_EXT_extended_dynamic_state
void vkCmdSetScissorWithCountEXT(
    VkCommandBuffer                             commandBuffer,
    uint32_t                                    scissorCount,
    const VkRect2D*                             pScissors);

Parameters

commandBuffer is the command buffer into which the command will be recorded.
scissorCount specifies the scissor count.
pScissors specifies the scissors to use for drawing.

Description

This command sets the scissor count and scissor rectangular bounds state for subsequent drawing commands when the graphics pipeline is created with VK_DYNAMIC_STATE_SCISSOR_WITH_COUNT set in VkPipelineDynamicStateCreateInfo::pDynamicStates. Otherwise, this state is specified by the corresponding VkPipelineViewportStateCreateInfo::scissorCount and pScissors values used to create the currently active pipeline.

Valid Usage

VUID-vkCmdSetScissorWithCount-None-08971
At least one of the following must be true:
- the extendedDynamicState feature is enabled
VUID-vkCmdSetScissorWithCount-scissorCount-03397
scissorCount must be between 1 and VkPhysicalDeviceLimits::maxViewports, inclusive
VUID-vkCmdSetScissorWithCount-scissorCount-03398
If the multiViewport feature is not enabled, scissorCount must be 1
VUID-vkCmdSetScissorWithCount-x-03399
The x and y members of offset member of any element of pScissors must be greater than or equal to 0
VUID-vkCmdSetScissorWithCount-offset-03400
Evaluation of (offset.x + extent.width) must not cause a signed integer addition overflow for any element of pScissors
VUID-vkCmdSetScissorWithCount-offset-03401
Evaluation of (offset.y + extent.height) must not cause a signed integer addition overflow for any element of pScissors

Valid Usage (Implicit)

VUID-vkCmdSetScissorWithCount-commandBuffer-parameter
commandBuffer must be a valid VkCommandBuffer handle
VUID-vkCmdSetScissorWithCount-pScissors-parameter
pScissors must be a valid pointer to an array of scissorCount VkRect2D structures
VUID-vkCmdSetScissorWithCount-commandBuffer-recording
commandBuffer must be in the recording state
VUID-vkCmdSetScissorWithCount-commandBuffer-cmdpool
The VkCommandPool that commandBuffer was allocated from must support graphics operations
VUID-vkCmdSetScissorWithCount-scissorCount-arraylength
scissorCount 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