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Rewrite gentextures.sh a bit, added an option to allow the overlay to be
colored while the base remains unmodified. Clarified usage information regarding the use of alpha translucency.
This commit is contained in:
Vanessa Ezekowitz
parent
e27c093d14
commit
132c1ec9f4
131
gentextures.sh
131
gentextures.sh
@ -1,36 +1,49 @@
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#!/bin/bash
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TEXTURE=$1
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COMPOSITE=$2
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if [ $1 = "-t" ] ; then {
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TINT_OVERLAY=$1
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BASE=$2
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COMPOSITE=$3
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} else {
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TINT_OVERLAY=""
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BASE=$1
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COMPOSITE=$2
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} fi
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base_texture="red_base_"$TEXTURE".png"
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if [ -z $1 ] || [ $1 == "--help" ] || [ $1 == "-h" ] || [[ $1 == "-t" && -z $3 ]] ; then {
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if [ -z $TEXTURE ] || [ $TEXTURE == "--help" ] || [ $TEXTURE == "-h" ] ; then {
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echo -e "\nUsage:"
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echo -e "\ngentextures.sh basename [overlay filename]"
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echo -e "\nThis script requires one or two parameters which supply the"
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echo -e "base filename of the textures, and an optional overlay. The"
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echo -e "<basename> is the first part of the filename that your textures"
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echo -e "will use when your mod is done. For example, if you supply the"
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echo -e "word 'cotton', this script will produce filenames like cotton_red.png"
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echo -e "or 'cotton_dark_blue_s50.png'. The texture that this script will"
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echo -e "read and recolor is derived from this parameter, and will be of"
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echo -e "the form 'red_base_xxxxx.png', where 'xxxx' is the basename."
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echo -e "\nYou can also supply an optional overlay image filename."
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echo -e "This image will be composited onto the output files after they"
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echo -e "have been colorized, but without being modified. This is useful"
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echo -e "when you have some part of your base image that will either get"
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echo -e "changed unpredictably or undesirably. Simply draw two images -"
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echo -e "one containing the whole image to be colored, and one containing"
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echo -e "the parts that should not be changed, with transparency where the"
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echo -e "base image should show through.\n"
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echo -e "\nUsage:
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\ngentextures.sh basename [overlay_filename]
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gentextures.sh -t basename overlay_filename
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\nThis script requires up to three parameters which supply the base filename
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of the textures, an optional overlay, and possibly the '-t' switch. The
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'basename' is the first part of the filename that your textures will use when
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your mod is done, which should almost always be the same as the one-word name
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of your mod. For example, if you supply the word 'mymod', this script will
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produce filenames like mymod_red.png or 'mymod_dark_blue_s50.png'. The
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texture that this script will read and recolor is derived from this parameter,
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and will be of the form 'basename_base.png', i.e. 'mymod_base.png'.
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\nYou can also supply an optional overlay image filename. This image will be
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composited onto the output files after they have been colorized, but without
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being modified. This is useful when you have some part of your base image
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that will either get changed undesirably (for example, the mortar among
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several bricks, or the shading detail of a stone pattern). Simply draw two
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images: one containing the whole image to be colored, and one containing the
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parts that should not be changed, with either full or partial alpha
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transparency where the re-colored base image should show through. Skilled use
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of color and alpha on this overlay can lead to some interesting effects.
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\nIf you add '-t' as the first parameter, the script will switch to 'tint
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overlay' mode. For this mode to work, you must also supply the base name as
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usual, and you must include an overlay image filename. Rather than re-color
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the base texture, the script will alter the hue/saturation/value of the
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overlay texture file instead, and leave the base texture unchanged. When
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using this mode, the base texture should be drawn in some neutral color, but
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any color is fine if it results in what you wanted.\n"
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exit 1
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} fi
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if [[ ! -z $TEXTURE && ! -e $base_texture ]]; then {
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echo -e "\nThe basename 'red_base_"$TEXTURE".png' was not found."
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if [[ ! -e $BASE"_base.png" ]]; then {
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echo -e "\nThe basename '"$BASE"_base.png' was not found."
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echo -e "\nAborting.\n"
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exit 1
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} fi
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@ -41,22 +54,19 @@ if [[ ! -z $COMPOSITE && ! -e $COMPOSITE ]]; then {
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exit 1
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} fi
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convert $base_texture -modulate 1,2,3 tempfile.png 1>/dev/null 2>/dev/null
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convert $BASE"_base.png" -modulate 1,2,3 tempfile.png 1>/dev/null 2>/dev/null
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if (( $? )) ; then {
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echo -e "\nImagemagick failed while testing the base texture file."
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echo -e "\nEither the base file 'red_base_"$TEXTURE".png isn't an image,"
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echo -e "\nEither the base file '"$BASE"_base.png' isn't an image,"
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echo "or it is broken, or Imagemagick itself just didn't work."
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echo -e "\nPlease check and correct your base image and try again."
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echo -e "\nAborting.\n"
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exit 1
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} fi
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composite_file=""
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if [ ! -z $COMPOSITE ] ; then {
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convert $base_texture -modulate 1,2,3 $COMPOSITE -composite tempfile.png 1>/dev/null 2>/dev/null
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convert $BASE"_base.png" -modulate 1,2,3 $COMPOSITE -composite tempfile.png 1>/dev/null 2>/dev/null
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if (( $? )) ; then {
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echo -e "\nImagemagick failed while testing the composite file."
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@ -66,53 +76,72 @@ if [ ! -z $COMPOSITE ] ; then {
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echo -e "\nAborting.\n"
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exit 1
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} fi
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composite_file=$COMPOSITE" -composite"
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} fi
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rm tempfile.png
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base_colors="red orange yellow lime green aqua cyan skyblue blue violet magenta redviolet"
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echo -e -n "\nGenerating filenames based on "$base_texture
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echo -e -n "\nGenerating filenames based on "$BASE"_base.png"
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if [ ! -z $COMPOSITE ] ; then {
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echo ","
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echo -n "using "$COMPOSITE" as an overlay"
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} fi
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if [ ! -z $TINT_OVERLAY ] ; then {
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echo ","
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echo -n "and tinting the overlay instead of the base texture"
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} fi
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echo -e "...\n"
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rm -rf generated-textures
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mkdir generated-textures
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mkdir -p generated-textures
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function generate_texture () {
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name=$1
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h=$2
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s=$3
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v=$4
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if [ -z $TINT_OVERLAY ]; then {
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if [ -z $COMPOSITE ]; then {
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convert $BASE"_base.png" -modulate $v,$s,$h "generated-textures/"$BASE"_"$name".png"
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} else {
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convert $BASE"_base.png" -modulate $v,$s,$h $COMPOSITE -composite "generated-textures/"$BASE"_"$name".png"
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} fi
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} else {
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convert $COMPOSITE -modulate $v,$s,$h MIFF:- | composite MIFF:- $BASE"_base.png" "generated-textures/"$BASE"_"$name".png"
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} fi
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}
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hue=0
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for name in $base_colors ; do
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for color_name in $base_colors ; do
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hue2=`echo "scale=10; ("$hue"*200/360)+100" |bc`
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echo $name "("$hue" degrees)"
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echo $color_name "("$hue" degrees)"
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echo " dark"
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convert $base_texture -modulate 33,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_dark_"$name".png"
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generate_texture "dark_"$color_name $hue2 100 33
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echo " medium"
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convert $base_texture -modulate 66,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_medium_"$name".png"
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generate_texture "medium_"$color_name $hue2 100 66
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echo " full"
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convert $base_texture -modulate 100,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_"$name".png"
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generate_texture $color_name $hue2 100 100
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echo " light"
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convert $base_texture -modulate 150,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_light_"$name".png"
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generate_texture "light_"$color_name $hue2 100 150
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echo " dark, 50% saturation"
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convert $base_texture -modulate 33,50,$hue2 $composite_file "generated-textures/"$TEXTURE"_dark_"$name"_s50.png"
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generate_texture "dark_"$color_name"_s50" $hue2 50 33
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echo " medium, 50% saturation"
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convert $base_texture -modulate 66,50,$hue2 $composite_file "generated-textures/"$TEXTURE"_medium_"$name"_s50.png"
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generate_texture "medium_"$color_name"_s50" $hue2 50 66
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echo " full, 50% saturation"
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convert $base_texture -modulate 100,50,$hue2 $composite_file "generated-textures/"$TEXTURE"_"$name"_s50.png"
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generate_texture $color_name"_s50" $hue2 50 100
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hue=$((hue+30))
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done
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echo "greyscales"
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echo " black"
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convert $base_texture -modulate 15,0,0 $composite_file "generated-textures/"$TEXTURE"_black.png"
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generate_texture black 0 0 15
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echo " dark grey"
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convert $base_texture -modulate 50,0,0 $composite_file "generated-textures/"$TEXTURE"_darkgrey.png"
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generate_texture darkgrey 0 0 50
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echo " medium grey"
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convert $base_texture -modulate 100,0,0 $composite_file "generated-textures/"$TEXTURE"_grey.png"
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generate_texture grey 0 0 100
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echo " light grey"
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convert $base_texture -modulate 150,0,0 $composite_file "generated-textures/"$TEXTURE"_lightgrey.png"
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generate_texture lightgrey 0 0 150
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echo " white"
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convert $base_texture -modulate 190,0,0 $composite_file "generated-textures/"$TEXTURE"_white.png"
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generate_texture white 0 0 190
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