# VkDrawIndirectCommand(3) Manual Page

## Name

VkDrawIndirectCommand - Structure specifying an indirect drawing command

Loading… please wait.

## C Specification

The `VkDrawIndirectCommand` structure is defined as:

    // Provided by VK_VERSION_1_0
    typedef struct VkDrawIndirectCommand {
        uint32_t    vertexCount;
        uint32_t    instanceCount;
        uint32_t    firstVertex;
        uint32_t    firstInstance;
    } VkDrawIndirectCommand;

## Members

- `vertexCount` is the number of vertices to draw.

- `instanceCount` is the number of instances to draw.

- `firstVertex` is the index of the first vertex to draw.

- `firstInstance` is the instance ID of the first instance to draw.

## Description

The members of `VkDrawIndirectCommand` have the same meaning as the similarly named parameters of vkCmdDraw.

Valid Usage

- VUID-VkDrawIndirectCommand-pNext-09461
  If the bound graphics pipeline state was created with VkPipelineVertexInputDivisorStateCreateInfo in the `pNext` chain of VkGraphicsPipelineCreateInfo::`pVertexInputState`, any member of VkPipelineVertexInputDivisorStateCreateInfo::`pVertexBindingDivisors` has a value other than `1` in `divisor`, and VkPhysicalDeviceVertexAttributeDivisorProperties::`supportsNonZeroFirstInstance` is `VK_FALSE`, then `firstInstance` must be `0`

- VUID-VkDrawIndirectCommand-None-09462
  If shader objects are used for drawing or the bound graphics pipeline state was created with the `VK_DYNAMIC_STATE_VERTEX_INPUT_EXT` dynamic state enabled, any member of the `pVertexBindingDescriptions` parameter to the vkCmdSetVertexInputEXT call that sets this dynamic state has a value other than `1` in `divisor`, and VkPhysicalDeviceVertexAttributeDivisorProperties::`supportsNonZeroFirstInstance` is `VK_FALSE`, then `firstInstance` must be `0`

- VUID-VkDrawIndirectCommand-firstInstance-00501
  If the `drawIndirectFirstInstance` feature is not enabled, `firstInstance` must be `0`

## See Also

VK_VERSION_1_0, vkCmdDrawIndirect

## 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 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0