vkCmdSetViewportWithCount
To dynamically set the viewport count and viewports, call:
void vkCmdSetViewportWithCountEXT(
VkCommandBuffer commandBuffer,
uint32_t viewportCount,
const VkViewport* pViewports);
commandBufferis the command buffer into which the command will be recorded.viewportCountspecifies the viewport count.pViewportsspecifies the viewports to use for drawing.
This command sets the viewport count and viewports state for subsequent
drawing commands
when drawing using shader objects, or
when the graphics pipeline is created with
VK_DYNAMIC_STATE_VIEWPORT_WITH_COUNT set in
VkPipelineDynamicStateCreateInfo::pDynamicStates.
Otherwise, this state is specified by the corresponding
VkPipelineViewportStateCreateInfo::viewportCount and
pViewports values used to create the currently active pipeline.
Valid Usage
VUID-vkCmdSetViewportWithCount-None-08971
At least one of the following must be true:
- the
extendedDynamicStatefeature is enabled - the
shaderObjectfeature is enabled ::
VUID-vkCmdSetViewportWithCount-viewportCount-03394
viewportCount must be between 1 and
VkPhysicalDeviceLimits::maxViewports, inclusive
VUID-vkCmdSetViewportWithCount-viewportCount-03395
If the multiViewport feature is not
enabled, viewportCount must be 1
VUID-vkCmdSetViewportWithCount-commandBuffer-04819
commandBuffer must not have
VkCommandBufferInheritanceViewportScissorInfoNV::viewportScissor2D
enabled
::
Valid Usage (Implicit)
VUID-vkCmdSetViewportWithCount-commandBuffer-parameter
commandBuffer must be a valid VkCommandBuffer handle
VUID-vkCmdSetViewportWithCount-pViewports-parameter
pViewports must be a valid pointer to an array of viewportCount valid VkViewport structures
VUID-vkCmdSetViewportWithCount-commandBuffer-recording
commandBuffer must be in the recording state
VUID-vkCmdSetViewportWithCount-commandBuffer-cmdpool
The VkCommandPool that commandBuffer was allocated from must support graphics operations
VUID-vkCmdSetViewportWithCount-videocoding
This command must only be called outside of a video coding scope
VUID-vkCmdSetViewportWithCount-viewportCount-arraylength
viewportCount must be greater than 0
Host Synchronization
- Host access to
commandBuffermust be externally synchronized - Host access to the
VkCommandPoolthatcommandBufferwas allocated from must be externally synchronized ::