# VkQueryType(3) Manual Page

## Name

VkQueryType - Specify the type of queries managed by a query pool

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## C Specification

Possible values of VkQueryPoolCreateInfo::`queryType`, specifying the type of queries managed by the pool, are:

    // Provided by VK_VERSION_1_0
    typedef enum VkQueryType {
        VK_QUERY_TYPE_OCCLUSION = 0,
        VK_QUERY_TYPE_PIPELINE_STATISTICS = 1,
        VK_QUERY_TYPE_TIMESTAMP = 2,
      // Provided by VK_KHR_video_queue
        VK_QUERY_TYPE_RESULT_STATUS_ONLY_KHR = 1000023000,
      // Provided by VK_EXT_transform_feedback
        VK_QUERY_TYPE_TRANSFORM_FEEDBACK_STREAM_EXT = 1000028004,
      // Provided by VK_KHR_performance_query
        VK_QUERY_TYPE_PERFORMANCE_QUERY_KHR = 1000116000,
      // Provided by VK_KHR_acceleration_structure
        VK_QUERY_TYPE_ACCELERATION_STRUCTURE_COMPACTED_SIZE_KHR = 1000150000,
      // Provided by VK_KHR_acceleration_structure
        VK_QUERY_TYPE_ACCELERATION_STRUCTURE_SERIALIZATION_SIZE_KHR = 1000150001,
      // Provided by VK_NV_ray_tracing
        VK_QUERY_TYPE_ACCELERATION_STRUCTURE_COMPACTED_SIZE_NV = 1000165000,
      // Provided by VK_INTEL_performance_query
        VK_QUERY_TYPE_PERFORMANCE_QUERY_INTEL = 1000210000,
      // Provided by VK_KHR_video_encode_queue
        VK_QUERY_TYPE_VIDEO_ENCODE_FEEDBACK_KHR = 1000299000,
      // Provided by VK_EXT_mesh_shader
        VK_QUERY_TYPE_MESH_PRIMITIVES_GENERATED_EXT = 1000328000,
      // Provided by VK_EXT_primitives_generated_query
        VK_QUERY_TYPE_PRIMITIVES_GENERATED_EXT = 1000382000,
      // Provided by VK_KHR_ray_tracing_maintenance1
        VK_QUERY_TYPE_ACCELERATION_STRUCTURE_SERIALIZATION_BOTTOM_LEVEL_POINTERS_KHR = 1000386000,
      // Provided by VK_KHR_ray_tracing_maintenance1
        VK_QUERY_TYPE_ACCELERATION_STRUCTURE_SIZE_KHR = 1000386001,
      // Provided by VK_EXT_opacity_micromap
        VK_QUERY_TYPE_MICROMAP_SERIALIZATION_SIZE_EXT = 1000396000,
      // Provided by VK_EXT_opacity_micromap
        VK_QUERY_TYPE_MICROMAP_COMPACTED_SIZE_EXT = 1000396001,
    } VkQueryType;

## Description

- `VK_QUERY_TYPE_OCCLUSION` specifies an occlusion query.

- `VK_QUERY_TYPE_PIPELINE_STATISTICS` specifies a pipeline statistics query.

- `VK_QUERY_TYPE_TIMESTAMP` specifies a timestamp query.

- `VK_QUERY_TYPE_PERFORMANCE_QUERY_KHR` specifies a performance query.

- `VK_QUERY_TYPE_TRANSFORM_FEEDBACK_STREAM_EXT` specifies a transform feedback query.

- `VK_QUERY_TYPE_PRIMITIVES_GENERATED_EXT` specifies a primitives generated query.

- `VK_QUERY_TYPE_ACCELERATION_STRUCTURE_COMPACTED_SIZE_KHR` specifies a acceleration structure size query for use with vkCmdWriteAccelerationStructuresPropertiesKHR or vkWriteAccelerationStructuresPropertiesKHR.

- `VK_QUERY_TYPE_ACCELERATION_STRUCTURE_SERIALIZATION_SIZE_KHR` specifies a serialization acceleration structure size query.

- `VK_QUERY_TYPE_ACCELERATION_STRUCTURE_SIZE_KHR` specifies an acceleration structure size query for use with vkCmdWriteAccelerationStructuresPropertiesKHR or vkWriteAccelerationStructuresPropertiesKHR.

- `VK_QUERY_TYPE_ACCELERATION_STRUCTURE_SERIALIZATION_BOTTOM_LEVEL_POINTERS_KHR` specifies a serialization acceleration structure pointer count query.

- `VK_QUERY_TYPE_ACCELERATION_STRUCTURE_COMPACTED_SIZE_NV` specifies an acceleration structure size query for use with vkCmdWriteAccelerationStructuresPropertiesNV.

- `VK_QUERY_TYPE_PERFORMANCE_QUERY_INTEL` specifies a Intel performance query.

- `VK_QUERY_TYPE_RESULT_STATUS_ONLY_KHR` specifies a result status query.

- `VK_QUERY_TYPE_VIDEO_ENCODE_FEEDBACK_KHR` specifies a video encode feedback query.

- `VK_QUERY_TYPE_MESH_PRIMITIVES_GENERATED_EXT` specifies a generated mesh primitives query.

## See Also

VK_VERSION_1_0, VkQueryPoolCreateInfo, vkCmdWriteAccelerationStructuresPropertiesKHR, vkCmdWriteAccelerationStructuresPropertiesNV, vkCmdWriteMicromapsPropertiesEXT, vkWriteAccelerationStructuresPropertiesKHR, vkWriteMicromapsPropertiesEXT

## 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0