rgc.yaml

# Copyright (c) 2012-2026 by the GalSim developers team on GitHub
# https://github.com/GalSim-developers
#
# This file is part of GalSim: The modular galaxy image simulation toolkit.
# https://github.com/GalSim-developers/GalSim
#
# GalSim is free software: redistribution and use in source and binary forms,
# with or without modification, are permitted provided that the following
# conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
#    list of conditions, and the disclaimer given in the accompanying LICENSE
#    file.
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions, and the disclaimer given in the documentation
#    and/or other materials provided with the distribution.

# The Great3 real-ground-constant branch configuration file
# Note: This configuration will not produce images _identical_ to the ones used for Great3,
# since the order of random number generation is different.  However, it is intended to
# produce an _equivalent_ simulation as the one produced for Great3.

# The real-galaxy branch is almost identical to the control branch.  So rather than duplicate
# everything from cgc.yaml and change a couple items, we use the template feature of GalSim
# config.

# This copies over everything from cgc.yaml
template : cgc.yaml

# Now we can change the things we need to change:

# 1. Use real galaxies rather than parametric
gal.gal_type : real

# 2. Whiten the noise from the HST images.
image.noise.whiten : True

# 3. Change the output directory
output.dir : real/ground/constant