Index: trunk/ippconfig/recipes/ppSim.config
===================================================================
--- trunk/ippconfig/recipes/ppSim.config	(revision 14696)
+++ trunk/ippconfig/recipes/ppSim.config	(revision 14819)
@@ -10,31 +10,32 @@
 SKY.RATE	F32	10.0		# Sky illumination rate (e/s)
 
-STARS.FAKE      BOOL    TRUE		# Stellar luminosity function slope
-STARS.LUM	F32	-1.2		# Stellar luminosity function slope
-STARS.MAG	F32	15.0		# Brightest magnitude for fake stars
+STARS.REAL	BOOL	TRUE		# Add stars from a catalogue?
+
+STARS.FAKE      BOOL    TRUE		# Add fake stars, randomly distributed?
+STARS.LUM	F32	-1.5		# Stellar luminosity function slope
+STARS.MAG	F32	15.5		# Brightest magnitude for fake stars
 STARS.DENSITY	F32	1.0		# Stellar density (per square degree) at the brightest magnitude
 
-GALAXY.FAKE     BOOL  TRUE		# Stellar luminosity function slope
+GALAXY.FAKE     BOOL    FALSE		# Generate fake galaxies?
 
 GALAXY.LUM	  F32	-0.8		# Stellar luminosity function slope
 GALAXY.MAG	  F32	11.0		# Brightest magnitude for fake stars
-GALAXY.DENSITY	  F32	6.0		# Stellar density (per square degree) at the brightest magnitude
+GALAXY.DENSITY	  F32	6.0		# Galaxy density (per square degree) at the brightest magnitude
 
-GALAXY.RMAJOR.MAX F32	10.0		# Stellar density (per square degree) at the brightest magnitude
-GALAXY.RMAJOR.MIN F32	2.0		# Stellar density (per square degree) at the brightest magnitude
+GALAXY.RMAJOR.MAX F32	10.0		# Maximum semi-major axis for galaxy models
+GALAXY.RMAJOR.MIN F32	2.0		# Minimum semi-major axis for galaxy models
 
-GALAXY.ARATIO.MAX F32	0.2		# Stellar density (per square degree) at the brightest magnitude
-GALAXY.ARATIO.MIN F32	1.0		# Stellar density (per square degree) at the brightest magnitude
+GALAXY.ARATIO.MAX F32	0.2		# Maximum axis ratio for galaxy models
+GALAXY.ARATIO.MIN F32	1.0		# Minimum axis ratio for galaxy models
 
-GALAXY.INDEX.MIN F32    0.25		# Stellar density (per square degree) at the brightest magnitude
-GALAXY.INDEX.MAX F32	0.500           # Stellar density (per square degree) at the brightest magnitude
+GALAXY.INDEX.MIN F32    0.25		# Maximum Sersic index for galaxy models
+GALAXY.INDEX.MAX F32	0.500           # Minimum Sersic index for galaxy models
 
-# angle range in radians
-GALAXY.THETA.MIN F32    0.0		# Stellar density (per square degree) at the brightest magnitude
-GALAXY.THETA.MAX F32	3.14            # Stellar density (per square degree) at the brightest magnitude
+GALAXY.THETA.MIN F32    0.0		# Maximum position angle for galaxy models
+GALAXY.THETA.MAX F32	3.14            # Minimum position angle for galaxy models
 
-GALAXY.GRID      BOOL   TRUE
-GALAXY.GRID.DX   S32   200
-GALAXY.GRID.DY   S32   200
+GALAXY.GRID      BOOL   FALSE		# Generate a (regular) grid of galaxy models?
+GALAXY.GRID.DX   S32   200              # Spacing between galaxies in grid in x
+GALAXY.GRID.DY   S32   200              # Spacing between galaxies in grid in y
 
 ### The following options are used if not defined by the concepts (e.g., usually read from headers)