VkAccelerationStructureGeometryTrianglesDataKHR(3)

Name

VkAccelerationStructureGeometryTrianglesDataKHR - Structure specifying a triangle geometry in a bottom-level acceleration structure

C Specification

The VkAccelerationStructureGeometryTrianglesDataKHR structure is defined as:

// Provided by VK_KHR_acceleration_structure
typedef struct VkAccelerationStructureGeometryTrianglesDataKHR {
    VkStructureType                  sType;
    const void*                      pNext;
    VkFormat                         vertexFormat;
    VkDeviceOrHostAddressConstKHR    vertexData;
    VkDeviceSize                     vertexStride;
    uint32_t                         maxVertex;
    VkIndexType                      indexType;
    VkDeviceOrHostAddressConstKHR    indexData;
    VkDeviceOrHostAddressConstKHR    transformData;
} VkAccelerationStructureGeometryTrianglesDataKHR;

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 vertex element.

  • vertexData is a device or host address of memory containing vertex data for this geometry.

  • vertexStride is the stride in bytes between each vertex.

  • maxVertex is the number of vertices in vertexData minus one.

  • indexType is the VkIndexType of each index element.

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

  • transformData is a device or host address to memory containing an optional reference to a VkTransformMatrixKHR structure describing a transformation from the space in which the vertices in this geometry are described to the space in which the acceleration structure is defined.

Description

Unlike the stride for vertex buffers in VkVertexInputBindingDescription for graphics pipelines which must not exceed maxVertexInputBindingStride, vertexStride for acceleration structure geometry is instead restricted to being a 32-bit value.
Valid Usage
Valid Usage (Implicit)

See Also

VK_KHR_acceleration_structure, VkAccelerationStructureGeometryDataKHR, 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.