misc/tools/autoshader.sh

   1 #!/bin/sh
   2
   3 if ! [ -d "textures" ] && ! [ -d "env" ]; then
   4         echo "Sorry, must be run from a directory with a textures subfolder. Giving up."
   5         exit 1
   6 fi
   7
   8 case "$0" in
   9         */*)
  10                 mydir=${0%/*}
  11                 ;;
  12         *)
  13                 mydir=.
  14                 ;;
  15 esac
  16
  17 makeshader()
  18 {
  19         s=`texnormalize "$1"`
  20         dir=${s#textures/}
  21         dir=${dir%%/*}
  22         echo scripts/$dir.shader
  23         mkdir -p scripts
  24         cat <<EOF >>"scripts/$dir.shader"
  25 $s
  26 {
  27         qer_editorimage $1
  28         qer_trans 0.5
  29         // maybe: surfaceparm nonsolid
  30         surfaceparm trans
  31         surfaceparm alphashadow
  32         surfaceparm nomarks
  33         cull disable
  34         {
  35                 map $s
  36                 blendfunc blend
  37                 // or: alphafunc GE128
  38         }
  39         {
  40                 map \$lightmap
  41                 blendfunc filter
  42                 rgbGen identity
  43         }
  44 }
  45 EOF
  46 }
  47
  48 makeskyshader()
  49 {
  50         coords=`sh "$mydir/brightspot.sh" "$1"`
  51         s=`texnormalize "$1"`
  52         case "$coords" in
  53                 *\ *)
  54                         ;;
  55                 *)
  56                         coords="-42 -42"
  57                         echo >&2 "NOTE: brightspot tool did not work"
  58                         ;;
  59         esac
  60         s=${s%_up}
  61         s=${s#env/}
  62         dir=${s%%/*}
  63         echo >&2 "appending to scripts/$dir.shader"
  64         echo scripts/$dir.shader
  65         mkdir -p scripts
  66         cat <<EOF >>"scripts/$dir.shader"
  67 textures/$s
  68 {
  69         qer_editorimage $1
  70         surfaceparm noimpact
  71         surfaceparm nolightmap
  72         surfaceparm sky
  73         surfaceparm nomarks
  74         q3map_sunExt .5 .5 .7 $coords 2 16 // red green blue intensity degrees elevation deviance samples
  75         q3map_surfacelight 150 // intensity
  76         skyparms env/$s - -
  77 }
  78 EOF
  79 }
  80
  81 texnormalize()
  82 {
  83         echo "$1" | sed 's/\.[Jj][Pp][Gg]$\|\.[Tt][Gg][Aa]$\|\.[Pp][Nn][Gg]$//;'
  84 }
  85
  86 allshadernames() # prints all shader names or texture names
  87 {
  88         cat scripts/*.shader 2>/dev/null | tr '\r' '\n' | {
  89                 mode=root
  90                 while IFS= read -r LINE; do
  91                         LINE=`echo "$LINE" | sed 's,//.*,,; s/\s\+/ /g; s/^ //; s/ $//; s/"//g;'`
  92                         [ -n "$LINE" ] || continue
  93                         set -- $LINE
  94                         case "$mode:$1" in
  95                                 root:'{')
  96                                         mode=shader
  97                                         ;;
  98                                 root:*)
  99                                         texnormalize "$1"
 100                                         ;;
 101
 102                                 shader:'{')
 103                                         mode=stage
 104                                         ;;
 105                                 shader:'}')
 106                                         mode=root
 107                                         ;;
 108                                 shader:skyparms)
 109                                         echo "`texnormalize "$1"`_up"
 110                                         ;;
 111
 112                                 stage:'}')
 113                                         mode=shader
 114                                         ;;
 115                                 stage:map)
 116                                         texnormalize "$2"
 117                                         ;;
 118                                 stage:clampmap)
 119                                         texnormalize "$2"
 120                                         ;;
 121                                 stage:animmap)
 122                                         shift
 123                                         shift
 124                                         for X in "$@"; do
 125                                                 texnormalize "$X"
 126                                         done
 127                                         ;;
 128                         esac
 129                 done
 130         }
 131 }
 132
 133 allshaders=`allshadernames`
 134 lf="
 135 "
 136
 137 has_shader()
 138 {
 139         sh=`texnormalize "$1"`
 140         case "$lf$allshaders$lf" in
 141                 *"$lf$sh$lf"*)
 142                         return 0
 143                         ;;
 144         esac
 145         return 1
 146 }
 147
 148 has_alpha()
 149 {
 150         [ -f "${1%.jpg}_alpha.jpg" ] || convert "$1" -depth 8 RGBA:- | xxd -c 4 -g 1 | grep -v " ff  " >/dev/null
 151 }
 152
 153 autoshaders()
 154 {
 155         {
 156                 [ -d "textures" ] && find textures -type f \( -iname \*.tga -o -iname \*.png \) -print | while IFS= read -r TEX; do
 157                         case `texnormalize "$TEX"` in
 158                                 *_norm|*_shirt|*_pants|*_glow|*_gloss|*_bump)
 159                                         # ignore these (they are used implicitly)
 160                                         continue
 161                                         ;;
 162                         esac
 163                         if has_shader "$TEX"; then
 164                                 echo>&2 "    $TEX has an associated shader, ignoring."
 165                         else
 166                                 if has_alpha "$TEX"; then
 167                                         echo>&2 "*** $TEX has alpha but no shader, creating default alpha shader."
 168                                         makeshader "$TEX"
 169                                 else
 170                                         echo>&2 "    $TEX has no shader and no alpha, fine."
 171                                 fi
 172                         fi
 173                 done
 174                 [ -d "env" ] && find env -type f \( -iname \*_up.tga -o -iname \*_up.png -o -iname \*_up.jpg \) -print | while IFS= read -r TEX; do
 175                         if has_shader "$TEX"; then
 176                                 echo>&2 "    $TEX has an associated shader, ignoring."
 177                         else
 178                                 echo>&2 "*** $TEX is sky but has no shader, creating default sky shader."
 179                                 makeskyshader "$TEX"
 180                         fi
 181                 done
 182         } | sort -u
 183 }
 184
 185 aashaders=`autoshaders`
 186
 187 if [ -n "$aashaders" ]; then
 188         cat <<EOF
 189 The following shader files have been automatically created or appended to:
 190
 191 $aashaders
 192
 193 Please edit them to your needs, and possibly rename them.
 194 EOF
 195 fi