C Specification

If VkAccelerationStructureGeometrySpheresDataNV is included in the pNext chain of a VkAccelerationStructureGeometryKHR structure, then that structures defines the sphere’s geometry data.

The VkAccelerationStructureGeometrySpheresDataNV structure is defined as:

// Provided by VK_NV_ray_tracing_linear_swept_spheres
typedef struct VkAccelerationStructureGeometrySpheresDataNV {
    VkStructureType                  sType;
    const void*                      pNext;
    VkFormat                         vertexFormat;
    VkDeviceOrHostAddressConstKHR    vertexData;
    VkDeviceSize                     vertexStride;
    VkFormat                         radiusFormat;
    VkDeviceOrHostAddressConstKHR    radiusData;
    VkDeviceSize                     radiusStride;
    VkIndexType                      indexType;
    VkDeviceOrHostAddressConstKHR    indexData;
    VkDeviceSize                     indexStride;
} VkAccelerationStructureGeometrySpheresDataNV;

Members

  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • vertexFormat is the VkFormat of each sphere’s vertex element.

  • vertexData is a device or host address of memory containing vertex data in form of pairs of centers of spheres that define all sphere geometry.

  • vertexStride is the stride in bytes between each vertex element.

  • radiusFormat is the VkFormat of each sphere’s radius.

  • radiusData is a device or host address of memory containing sphere’s radius data value.

  • radiusStride is the stride in bytes between each radius value.

  • indexType is the VkIndexType of each index element.

  • indexData is a device or host address of memory containing index data for vertex and radius buffers for this geometry. When indexType is VK_INDEX_TYPE_NONE_KHR it must be NULL.

  • indexStride is the stride in bytes between each index element.

Description

Valid Usage
Valid Usage (Implicit)

See Also

VK_NV_ray_tracing_linear_swept_spheres, VkDeviceOrHostAddressConstKHR, VkDeviceSize, VkFormat, VkIndexType, VkStructureType

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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0