pub type FnCmdTraceRaysNV = extern "system" fn(commandBuffer: CommandBuffer, raygenShaderBindingTableBuffer: Buffer, raygenShaderBindingOffset: DeviceSize, missShaderBindingTableBuffer: Buffer, missShaderBindingOffset: DeviceSize, missShaderBindingStride: DeviceSize, hitShaderBindingTableBuffer: Buffer, hitShaderBindingOffset: DeviceSize, hitShaderBindingStride: DeviceSize, callableShaderBindingTableBuffer: Buffer, callableShaderBindingOffset: DeviceSize, callableShaderBindingStride: DeviceSize, width: u32, height: u32, depth: u32);