VkAccelerationStructureDenseGeometryFormatTrianglesDataAMDX

If a VkAccelerationStructureDenseGeometryFormatTrianglesDataAMDX structure is included in the pNext chain of a VkAccelerationStructureGeometryKHR structure whose geometryType member is VK_GEOMETRY_TYPE_DENSE_GEOMETRY_FORMAT_TRIANGLES_AMDX, then that structure defines triangle geometry using compressed data.

The VkAccelerationStructureDenseGeometryFormatTrianglesDataAMDX structure is defined as:

typedef struct VkAccelerationStructureDenseGeometryFormatTrianglesDataAMDX {
    VkStructureType sType;
    const void* pNext;
    VkDeviceOrHostAddressConstKHR compressedData;
    VkDeviceSize dataSize;
    uint32_t numTriangles;
    uint32_t numVertices;
    uint32_t maxPrimitiveIndex;
    uint32_t maxGeometryIndex;
    VkCompressedTriangleFormatAMDX format;
} VkAccelerationStructureDenseGeometryFormatTrianglesDataAMDX;

pub struct AccelerationStructureDenseGeometryFormatTrianglesDataAMDX {
    s_type: vk::StructureType,
    p_next: *const c_void,
    compressed_data: vk::DeviceOrHostAddressConstKHR,
    data_size: vk::DeviceSize,
    num_triangles: u32,
    num_vertices: u32,
    max_primitive_index: u32,
    max_geometry_index: u32,
    format: vk::CompressedTriangleFormatAMDX,
}

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• compressedData specifies the base address of the compressed data.
• dataSize specifies the size of the compressed data.
• numTriangles specifies the total number of triangles encoded in the compressed data.
• numVertices specifies the number of vertices in the compressed data.
• maxPrimitiveIndex specifies the maximum primitive index encoded in the compressed data.
• maxGeometryIndex specifies the maximum geometry index encoded in the compressed data.
• format specifies the VkCompressedTriangleFormatAMDX format of the compressed data.

If format is VK_COMPRESSED_TRIANGLE_FORMAT_DGF1_AMDX, numVertices specifies the sum of vertex counts across all blocks.