yTrianglesDataKHR = new VkAccelerationStructureGeometryTrianglesDataKHR();
accelerationStructureGeometryTrianglesDataKHR.sType = VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_GEOMETRY_TRIANGLES_DATA_KHR;
accelerationStructureGeometryTrianglesDataKHR.pNext = ;
accelerationStructureGeometryTrianglesDataKHR.vertexFormat = ;
accelerationStructureGeometryTrianglesDataKHR.vertexData = ;
accelerationStructureGeometryTrianglesDataKHR.vertexStride = ;
accelerationStructureGeometryTrianglesDataKHR.maxVertex = ;
accelerati