VkGeometryTrianglesNV

The VkGeometryTrianglesNV structure specifies triangle geometry in a bottom-level acceleration structure and is defined as:

typedef struct VkGeometryTrianglesNV {
    VkStructureType sType;
    const void* pNext;
    VkBuffer vertexData;
    VkDeviceSize vertexOffset;
    uint32_t vertexCount;
    VkDeviceSize vertexStride;
    VkFormat vertexFormat;
    VkBuffer indexData;
    VkDeviceSize indexOffset;
    uint32_t indexCount;
    VkIndexType indexType;
    VkBuffer transformData;
    VkDeviceSize transformOffset;
} VkGeometryTrianglesNV;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• vertexData is the buffer containing vertex data for this geometry.
• vertexOffset is the offset in bytes within vertexData containing vertex data for this geometry.
• vertexCount is the number of valid vertices.
• vertexStride is the stride in bytes between each vertex.
• vertexFormat is a VkFormat describing the format of each vertex element.
• indexData is the buffer containing index data for this geometry.
• indexOffset is the offset in bytes within indexData containing index data for this geometry.
• indexCount is the number of indices to include in this geometry.
• indexType is a VkIndexType describing the format of each index.
• transformData is an optional buffer containing an VkTransformMatrixNV structure defining a transformation to be applied to this geometry.
• transformOffset is the offset in bytes in transformData of the transform information described above.

If indexType is VK_INDEX_TYPE_NONE_NV, then this structure describes a set of triangles determined by vertexCount. Otherwise, this structure describes a set of indexed triangles determined by indexCount.