diff options
| -rwxr-xr-x | gentextures.sh | 135 |
1 files changed, 82 insertions, 53 deletions
diff --git a/gentextures.sh b/gentextures.sh index 596ec83..5717d91 100755 --- a/gentextures.sh +++ b/gentextures.sh @@ -1,36 +1,49 @@ #!/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 +if [ $1 = "-t" ] ; then { + TINT_OVERLAY=$1 + BASE=$2 + COMPOSITE=$3 +} else { + TINT_OVERLAY="" + BASE=$1 + COMPOSITE=$2 } fi +if [ -z $1 ] || [ $1 == "--help" ] || [ $1 == "-h" ] || [[ $1 == "-t" && -z $3 ]] ; then { + + echo -e "\nUsage: +\ngentextures.sh basename [overlay_filename] +gentextures.sh -t basename overlay_filename +\nThis script requires up to three parameters which supply the base filename +of the textures, an optional overlay, and possibly the '-t' switch. The +'basename' is the first part of the filename that your textures will use when +your mod is done, which should almost always be the same as the one-word name +of your mod. For example, if you supply the word 'mymod', this script will +produce filenames like mymod_red.png or 'mymod_dark_blue_s50.png'. The +texture that this script will read and recolor is derived from this parameter, +and will be of the form 'basename_base.png', i.e. 'mymod_base.png'. +\nYou can also supply an optional overlay image filename. This image will be +composited onto the output files after they have been colorized, but without +being modified. This is useful when you have some part of your base image +that will either get changed undesirably (for example, the mortar among +several bricks, or the shading detail of a stone pattern). Simply draw two +images: one containing the whole image to be colored, and one containing the +parts that should not be changed, with either full or partial alpha +transparency where the re-colored base image should show through. Skilled use +of color and alpha on this overlay can lead to some interesting effects. +\nIf you add '-t' as the first parameter, the script will switch to 'tint +overlay' mode. For this mode to work, you must also supply the base name as +usual, and you must include an overlay image filename. Rather than re-color +the base texture, the script will alter the hue/saturation/value of the +overlay texture file instead, and leave the base texture unchanged. When +using this mode, the base texture should be drawn in some neutral color, but +any color is fine if it results in what you wanted.\n" + exit 1 +} fi -if [[ ! -z $TEXTURE && ! -e $base_texture ]]; then { - echo -e "\nThe basename 'red_base_"$TEXTURE".png' was not found." +if [[ ! -e $BASE"_base.png" ]]; then { + echo -e "\nThe basename '"$BASE"_base.png' was not found." echo -e "\nAborting.\n" exit 1 } fi @@ -41,22 +54,19 @@ if [[ ! -z $COMPOSITE && ! -e $COMPOSITE ]]; then { exit 1 } fi - -convert $base_texture -modulate 1,2,3 tempfile.png 1>/dev/null 2>/dev/null +convert $BASE"_base.png" -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 -e "\nEither the base file '"$BASE"_base.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 + convert $BASE"_base.png" -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." @@ -66,53 +76,72 @@ if [ ! -z $COMPOSITE ] ; then { echo -e "\nAborting.\n" exit 1 } fi - - composite_file=$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 "$base_texture +echo -e -n "\nGenerating filenames based on "$BASE"_base.png" if [ ! -z $COMPOSITE ] ; then { echo "," echo -n "using "$COMPOSITE" as an overlay" } fi + +if [ ! -z $TINT_OVERLAY ] ; then { + echo "," + echo -n "and tinting the overlay instead of the base texture" +} fi + echo -e "...\n" -rm -rf generated-textures -mkdir generated-textures +mkdir -p generated-textures + +function generate_texture () { + name=$1 + h=$2 + s=$3 + v=$4 + if [ -z $TINT_OVERLAY ]; then { + if [ -z $COMPOSITE ]; then { + convert $BASE"_base.png" -modulate $v,$s,$h "generated-textures/"$BASE"_"$name".png" + } else { + convert $BASE"_base.png" -modulate $v,$s,$h $COMPOSITE -composite "generated-textures/"$BASE"_"$name".png" + } fi + } else { + convert $COMPOSITE -modulate $v,$s,$h MIFF:- | composite MIFF:- $BASE"_base.png" "generated-textures/"$BASE"_"$name".png" + } fi +} hue=0 -for name in $base_colors ; do +for color_name in $base_colors ; do hue2=`echo "scale=10; ("$hue"*200/360)+100" |bc` - echo $name "("$hue" degrees)" + echo $color_name "("$hue" degrees)" echo " dark" - convert $base_texture -modulate 33,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_dark_"$name".png" + generate_texture "dark_"$color_name $hue2 100 33 echo " medium" - convert $base_texture -modulate 66,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_medium_"$name".png" + generate_texture "medium_"$color_name $hue2 100 66 echo " full" - convert $base_texture -modulate 100,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_"$name".png" + generate_texture $color_name $hue2 100 100 echo " light" - convert $base_texture -modulate 150,100,$hue2 $composite_file "generated-textures/"$TEXTURE"_light_"$name".png" + generate_texture "light_"$color_name $hue2 100 150 echo " dark, 50% saturation" - convert $base_texture -modulate 33,50,$hue2 $composite_file "generated-textures/"$TEXTURE"_dark_"$name"_s50.png" + generate_texture "dark_"$color_name"_s50" $hue2 50 33 echo " medium, 50% saturation" - convert $base_texture -modulate 66,50,$hue2 $composite_file "generated-textures/"$TEXTURE"_medium_"$name"_s50.png" + generate_texture "medium_"$color_name"_s50" $hue2 50 66 echo " full, 50% saturation" - convert $base_texture -modulate 100,50,$hue2 $composite_file "generated-textures/"$TEXTURE"_"$name"_s50.png" + generate_texture $color_name"_s50" $hue2 50 100 hue=$((hue+30)) done echo "greyscales" echo " black" -convert $base_texture -modulate 15,0,0 $composite_file "generated-textures/"$TEXTURE"_black.png" +generate_texture black 0 0 15 echo " dark grey" -convert $base_texture -modulate 50,0,0 $composite_file "generated-textures/"$TEXTURE"_darkgrey.png" +generate_texture darkgrey 0 0 50 echo " medium grey" -convert $base_texture -modulate 100,0,0 $composite_file "generated-textures/"$TEXTURE"_grey.png" +generate_texture grey 0 0 100 echo " light grey" -convert $base_texture -modulate 150,0,0 $composite_file "generated-textures/"$TEXTURE"_lightgrey.png" +generate_texture lightgrey 0 0 150 echo " white" -convert $base_texture -modulate 190,0,0 $composite_file "generated-textures/"$TEXTURE"_white.png" +generate_texture white 0 0 190 |