The annual recipe uses rfluxmtx and rcontrib which don’t use ambient caching in Radiance - which is what rtrace does. That means -aa will be set to 0 and -ar will not make a difference. You can try increasing the value for -ad and then use 1/ad or lower for -lw. I would start with -ad 5000 -lw 2e-05.
I also suggest to check @sarith ’s examples here:
#!/usr/bin/env bash
#Lines beginning with # are comments.
#This file is a part of a Radiance Tutorial commissioned by the Lawrence Berkeley National Laboratory.
#Date:19 AUG 2017
#Created by Sarith Subramaniam(sarith@sarith.in)
#This simulation demonstrates a Radiance-based implementation of the DAYSIM DDS MODEL.
#Citation: Bourgeois,D. , Reinhart, CF. , and Ward, GW. "Standard daylight coefficient model for dynamic daylighting simulations." Building Research & Information 36.1 (2008): 68-82.
#The commands in this file improve upon the DDS Model by using a greater sky discretization i.e. an MF:6 sun distribution with 5165 solar discs.
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#These commands were tested on a dedicated Intel Xeon CPU E5-2680 (v2 @ 2.80GHz) processor.
#Processor runtime for executing all the commands (in seconds): 3
#NOTES:
# Set the current working directory to "room" before running the commands below.
# Commands are separated by empty line-breaks.
# The epw file used in the current tutorial contains only 40 timesteps so that the simulations can completed in a reasonable time.
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