C Specification

If the bound graphics pipeline state was created with the VK_DYNAMIC_STATE_VIEWPORT_WITH_COUNT_EXT dynamic state enabled then the viewport count and viewport transformation parameters are set dynamically by calling:

// Provided by VK_EXT_extended_dynamic_state
void vkCmdSetViewportWithCountEXT(
    VkCommandBuffer                             commandBuffer,
    uint32_t                                    viewportCount,
    const VkViewport*                           pViewports);

Parameters

  • commandBuffer is the command buffer into which the command will be recorded.

  • viewportCount specifies the viewport count.

  • pViewports specifies the viewports to use for drawing.

Description

Valid Usage
  • The extendedDynamicState feature must be enabled

  • viewportCount must be between 1 and VkPhysicalDeviceLimits::maxViewports, inclusive

  • If the multiple viewports feature is not enabled, viewportCount must be 1

Valid Usage (Implicit)
  • commandBuffer must be a valid VkCommandBuffer handle

  • pViewports must be a valid pointer to an array of viewportCount valid VkViewport structures

  • commandBuffer must be in the recording state

  • The VkCommandPool that commandBuffer was allocated from must support graphics operations

  • viewportCount 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

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 (c) 2014-2020 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0