C Specification

To dynamically set the per-viewport shading rate image palettes, call:

// Provided by VK_NV_shading_rate_image
void vkCmdSetViewportShadingRatePaletteNV(
    VkCommandBuffer                             commandBuffer,
    uint32_t                                    firstViewport,
    uint32_t                                    viewportCount,
    const VkShadingRatePaletteNV*               pShadingRatePalettes);


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

  • firstViewport is the index of the first viewport whose shading rate palette is updated by the command.

  • viewportCount is the number of viewports whose shading rate palettes are updated by the command.

  • pShadingRatePalettes is a pointer to an array of VkShadingRatePaletteNV structures defining the palette for each viewport.


This command sets the per-viewport shading rate image palettes for subsequent drawing commands when drawing using shader objects, or when the graphics pipeline is created with VK_DYNAMIC_STATE_VIEWPORT_SHADING_RATE_PALETTE_NV set in VkPipelineDynamicStateCreateInfo::pDynamicStates. Otherwise, this state is specified by the VkPipelineViewportShadingRateImageStateCreateInfoNV::pShadingRatePalettes values used to create the currently active pipeline.

Valid Usage
  • VUID-vkCmdSetViewportShadingRatePaletteNV-None-02064
    The shadingRateImage feature must be enabled

  • VUID-vkCmdSetViewportShadingRatePaletteNV-firstViewport-02067
    The sum of firstViewport and viewportCount must be between 1 and VkPhysicalDeviceLimits::maxViewports, inclusive

  • VUID-vkCmdSetViewportShadingRatePaletteNV-firstViewport-02068
    If the multiViewport feature is not enabled, firstViewport must be 0

  • VUID-vkCmdSetViewportShadingRatePaletteNV-viewportCount-02069
    If the multiViewport feature is not enabled, viewportCount must be 1

Valid Usage (Implicit)
  • VUID-vkCmdSetViewportShadingRatePaletteNV-commandBuffer-parameter
    commandBuffer must be a valid VkCommandBuffer handle

  • VUID-vkCmdSetViewportShadingRatePaletteNV-pShadingRatePalettes-parameter
    pShadingRatePalettes must be a valid pointer to an array of viewportCount valid VkShadingRatePaletteNV structures

  • VUID-vkCmdSetViewportShadingRatePaletteNV-commandBuffer-recording
    commandBuffer must be in the recording state

  • VUID-vkCmdSetViewportShadingRatePaletteNV-commandBuffer-cmdpool
    The VkCommandPool that commandBuffer was allocated from must support graphics operations

  • VUID-vkCmdSetViewportShadingRatePaletteNV-videocoding
    This command must only be called outside of a video coding scope

  • VUID-vkCmdSetViewportShadingRatePaletteNV-viewportCount-arraylength
    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 Video Coding Scope Supported Queue Types Command Type






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 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0