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#!/bin/bash
TEXTURE=$1
COMPOSITE=$2
base_texture="red_base_"$TEXTURE".png"
if [ -z $TEXTURE ] || [ $TEXTURE == "--help" ] || [ $TEXTURE == "-h" ] ; then {
echo -e "\nUsage:"
echo -e "\ngentextures.sh basename [overlay filename]"
echo -e "\nThis script requires one or two parameters which supply the"
echo -e "base filename of the textures, and an optional overlay. The"
echo -e "<basename> is the first part of the filename that your textures"
echo -e "will use when your mod is done. For example, if you supply the"
echo -e "word 'cotton', this script will produce filenames like cotton_red.png"
echo -e "or 'cotton_dark_blue_s50.png'. The texture that this script will"
echo -e "read and recolor is derived from this parameter, and will be of"
echo -e "the form 'red_base_xxxxx.png', where 'xxxx' is the basename."
echo -e "\nYou can also supply an optional overlay image filename."
echo -e "This image will be composited onto the output files after they"
echo -e "have been colorized, but without being modified. This is useful"
echo -e "when you have some part of your base image that will either get"
echo -e "changed unpredictably or undesirably. Simply draw two images -"
echo -e "one containing the whole image to be colored, and one containing"
echo -e "the parts that should not be changed, with transparency where the"
echo -e "base image should show through.\n"
exit 1
} fi
if [[ ! -z $TEXTURE && ! -e $base_texture ]]; then {
echo -e "\nThe basename 'red_base_"$TEXTURE".png' was not found."
echo -e "\nAborting.\n"
exit 1
} fi
if [[ ! -z $COMPOSITE && ! -e $COMPOSITE ]]; then {
echo -e "\nThe requested composite file '"$COMPOSITE"' was not found."
echo -e "\nAborting.\n"
exit 1
} fi
convert $base_texture -modulate 1,2,3 tempfile.png 1>/dev/null 2>/dev/null
if (( $? )) ; then {
echo -e "\nImagemagick failed while testing the base texture file."
echo -e "\nEither the base file 'red_base_"$TEXTURE".png isn't an image,"
echo "or it is broken, or Imagemagick itself just didn't work."
echo -e "\nPlease check and correct your base image and try again."
echo -e "\nAborting.\n"
exit 1
} fi
composite_file=""
if [ ! -z $COMPOSITE ] ; then {
convert $base_texture -modulate 1,2,3 $COMPOSITE -composite tempfile.png 1>/dev/null 2>/dev/null
if (( $? )) ; then {
echo -e "\nImagemagick failed while testing the composite file."
echo -e "\nEither the composite file '"$COMPOSITE"' isn't an image"
echo "or it is broken, or Imagemagick itself just didn't work."
echo -e "\nPlease check and correct your composite image and try again."
echo -e "\nAborting.\n"
exit 1
} fi
composite_file=$COMPOSITE" -composite"
} fi
rm tempfile.png
base_colors="red orange yellow lime green aqua cyan skyblue blue violet magenta redviolet"
echo -e -n "\nGenerating filenames based on "$base_texture
if [ ! -z $COMPOSITE ] ; then {
echo ","
echo -n "using "$COMPOSITE" as an overlay"
} fi
echo -e "...\n"
rm -rf generated-textures
mkdir generated-textures
hue=0
for name in $base_colors ; do
hue2=`echo "scale=10; ("$hue"*200/360)+100" |bc`
echo $name "("$hue" degrees)"
echo " dark"
convert $base_texture -modulate 33,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_dark_"$name".png"
echo " medium"
convert $base_texture -modulate 66,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_medium_"$name".png"
echo " full"
convert $base_texture -modulate 100,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_"$name".png"
echo " light"
convert $base_texture -modulate 150,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_light_"$name".png"
echo " dark, 50% saturation"
convert $base_texture -modulate 33,50,$hue2 $composite_file "generated-textures/"$TEXTURE"_dark_"$name"_s50.png"
echo " medium, 50% saturation"
convert $base_texture -modulate 66,50,$hue2 $composite_file "generated-textures/"$TEXTURE"_medium_"$name"_s50.png"
echo " full, 50% saturation"
convert $base_texture -modulate 100,50,$hue2 $composite_file "generated-textures/"$TEXTURE"_"$name"_s50.png"
hue=$((hue+30))
done
echo "greyscales"
echo " black"
convert $base_texture -modulate 15,0,0 $composite_file "generated-textures/"$TEXTURE"_black.png"
echo " dark grey"
convert $base_texture -modulate 50,0,0 $composite_file "generated-textures/"$TEXTURE"_darkgrey.png"
echo " medium grey"
convert $base_texture -modulate 100,0,0 $composite_file "generated-textures/"$TEXTURE"_mediumgrey.png"
echo " light grey"
convert $base_texture -modulate 150,0,0 $composite_file "generated-textures/"$TEXTURE"_lightgrey.png"
echo " white"
convert $base_texture -modulate 190,0,0 $composite_file "generated-textures/"$TEXTURE"_white.png"
|
