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<td class='lines'><pre><code><span class="hl slc">#!/bin/bash</span>
<span class="hl slc"># This script generates normalmaps using The GIMP to do the heavy lifting.</span>
<span class="hl slc"># give any unrecognized switch (say, -h) for usage info.</span>
<span class="hl kwc">rm</span> <span class="hl opt">/</span>tmp<span class="hl opt">/</span>normals_filelist.txt
numprocs<span class="hl opt">=</span><span class="hl num">6</span>
skiptools<span class="hl opt">=</span>false
skipinventory<span class="hl opt">=</span>false
invresolution<span class="hl opt">=</span><span class="hl num">64</span>
dryrun<span class="hl opt">=</span>false
pattern<span class="hl opt">=</span><span class="hl str">"*.png *.jpg"</span>
filter<span class="hl opt">=</span><span class="hl num">0</span>
scale<span class="hl opt">=</span><span class="hl num">8</span>
wrap<span class="hl opt">=</span><span class="hl num">0</span>
heightsource<span class="hl opt">=</span><span class="hl num">0</span>
conversion<span class="hl opt">=</span><span class="hl num">0</span>
invertx<span class="hl opt">=</span><span class="hl num">0</span>
inverty<span class="hl opt">=</span><span class="hl num">0</span>
<span class="hl kwa">while</span> <span class="hl kwb">test -n</span> <span class="hl str">"</span><span class="hl ipl">$1</span><span class="hl str">"</span><span class="hl opt">;</span> <span class="hl kwa">do</span>
<span class="hl kwa">case</span> <span class="hl str">"</span><span class="hl ipl">$1</span><span class="hl str">"</span> <span class="hl kwa">in</span>
<span class="hl kwb">--scale</span>|<span class="hl kwb">-s</span><span class="hl opt">)</span>
<span class="hl kwa">if</span> <span class="hl opt">[</span> <span class="hl kwb">-z</span> <span class="hl str">"</span><span class="hl ipl">$2</span><span class="hl str">"</span> <span class="hl opt">] ;</span> <span class="hl kwa">then</span> <span class="hl kwb">echo</span> <span class="hl str">"Missing scale parameter"</span><span class="hl opt">;</span> <span class="hl kwb">exit</span> <span class="hl num">1</span><span class="hl opt">;</span> <span class="hl kwa">fi</span>
scale<span class="hl opt">=</span><span class="hl kwd">$2</span>
<span class="hl kwb">shift</span>
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--pattern</span>|<span class="hl kwb">-p</span><span class="hl opt">)</span>
<span class="hl kwa">if</span> <span class="hl opt">[</span> <span class="hl kwb">-z</span> <span class="hl str">"</span><span class="hl ipl">$2</span><span class="hl str">"</span> <span class="hl opt">] ;</span> <span class="hl kwa">then</span> <span class="hl kwb">echo</span> <span class="hl str">"Missing pattern parameter"</span><span class="hl opt">;</span> <span class="hl kwb">exit</span> <span class="hl num">1</span><span class="hl opt">;</span> <span class="hl kwa">fi</span>
pattern<span class="hl opt">=</span><span class="hl kwd">$2</span>
<span class="hl kwb">shift</span>
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--skiptools</span>|<span class="hl kwb">-t</span><span class="hl opt">)</span>
skiptools<span class="hl opt">=</span>true
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--skipinventory</span>|<span class="hl kwb">-i</span><span class="hl opt">)</span>
<span class="hl kwa">if</span> <span class="hl opt">[[</span> <span class="hl kwd">$2</span> <span class="hl opt">=</span>~ ^<span class="hl opt">[</span><span class="hl num">0</span><span class="hl kwb">-9</span><span class="hl opt">]+</span>$ <span class="hl opt">]];</span> <span class="hl kwa">then</span>
invresolution<span class="hl opt">=</span><span class="hl kwd">$2</span>
<span class="hl kwb">shift</span>
<span class="hl kwa">fi</span>
skipinventory<span class="hl opt">=</span>true
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--filter</span>|<span class="hl kwb">-f</span><span class="hl opt">)</span>
<span class="hl kwa">if</span> <span class="hl opt">[</span> <span class="hl kwb">-z</span> <span class="hl str">"</span><span class="hl ipl">$2</span><span class="hl str">"</span> <span class="hl opt">] ;</span> <span class="hl kwa">then</span> <span class="hl kwb">echo</span> <span class="hl str">"Missing filter parameter"</span><span class="hl opt">;</span> <span class="hl kwb">exit</span> <span class="hl num">1</span><span class="hl opt">;</span> <span class="hl kwa">fi</span>
<span class="hl kwa">case</span> <span class="hl str">"</span><span class="hl ipl">$2</span><span class="hl str">"</span> <span class="hl kwa">in</span>
sobel3|<span class="hl num">1</span><span class="hl opt">)</span>
filter<span class="hl opt">=</span><span class="hl num">1</span>
<span class="hl opt">;;</span>
sobel5|<span class="hl num">2</span><span class="hl opt">)</span>
filter<span class="hl opt">=</span><span class="hl num">2</span>
<span class="hl opt">;;</span>
prewitt3|<span class="hl num">3</span><span class="hl opt">)</span>
filter<span class="hl opt">=</span><span class="hl num">3</span>
<span class="hl opt">;;</span>
prewitt5|<span class="hl num">4</span><span class="hl opt">)</span>
filter<span class="hl opt">=</span><span class="hl num">4</span>
<span class="hl opt">;;</span>
<span class="hl num">3</span>x3|<span class="hl num">5</span><span class="hl opt">)</span>
filter<span class="hl opt">=</span><span class="hl num">5</span>
<span class="hl opt">;;</span>
<span class="hl num">5</span>x5|<span class="hl num">6</span><span class="hl opt">)</span>
filter<span class="hl opt">=</span><span class="hl num">6</span>
<span class="hl opt">;;</span>
<span class="hl num">7</span>x7|<span class="hl num">7</span><span class="hl opt">)</span>
filter<span class="hl opt">=</span><span class="hl num">7</span>
<span class="hl opt">;;</span>
<span class="hl num">9</span>x9|<span class="hl num">8</span><span class="hl opt">)</span>
filter<span class="hl opt">=</span><span class="hl num">8</span>
<span class="hl opt">;;</span>
<span class="hl opt">*)</span>
filter<span class="hl opt">=</span><span class="hl num">0</span>
<span class="hl opt">;;</span>
<span class="hl kwa">esac</span>
<span class="hl kwb">shift</span>
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--heightalpha</span>|<span class="hl kwb">-a</span><span class="hl opt">)</span>
heightsource<span class="hl opt">=</span><span class="hl num">1</span>
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--conversion</span>|<span class="hl kwb">-c</span><span class="hl opt">)</span>
<span class="hl kwa">if</span> <span class="hl opt">[</span> <span class="hl kwb">-z</span> <span class="hl str">"</span><span class="hl ipl">$2</span><span class="hl str">"</span> <span class="hl opt">] ;</span> <span class="hl kwa">then</span> <span class="hl kwb">echo</span> <span class="hl str">"Missing conversion parameter"</span><span class="hl opt">;</span> <span class="hl kwb">exit</span> <span class="hl num">1</span><span class="hl opt">;</span> <span class="hl kwa">fi</span>
<span class="hl kwa">case</span> <span class="hl str">"</span><span class="hl ipl">$2</span><span class="hl str">"</span> <span class="hl kwa">in</span>
biased|<span class="hl num">1</span><span class="hl opt">)</span>
conversion<span class="hl opt">=</span><span class="hl num">1</span>
<span class="hl opt">;;</span>
red|<span class="hl num">2</span><span class="hl opt">)</span>
conversion<span class="hl opt">=</span><span class="hl num">2</span>
<span class="hl opt">;;</span>
green|<span class="hl num">3</span><span class="hl opt">)</span>
conversion<span class="hl opt">=</span><span class="hl num">3</span>
<span class="hl opt">;;</span>
blue|<span class="hl num">4</span><span class="hl opt">)</span>
conversion<span class="hl opt">=</span><span class="hl num">4</span>
<span class="hl opt">;;</span>
maxrgb|<span class="hl num">5</span><span class="hl opt">)</span>
conversion<span class="hl opt">=</span><span class="hl num">5</span>
<span class="hl opt">;;</span>
minrgb|<span class="hl num">6</span><span class="hl opt">)</span>
conversion<span class="hl opt">=</span><span class="hl num">6</span>
<span class="hl opt">;;</span>
colorspace|<span class="hl num">7</span><span class="hl opt">)</span>
conversion<span class="hl opt">=</span><span class="hl num">7</span>
<span class="hl opt">;;</span>
normalize-only|<span class="hl num">8</span><span class="hl opt">)</span>
conversion<span class="hl opt">=</span><span class="hl num">8</span>
<span class="hl opt">;;</span>
heightmap|<span class="hl num">9</span><span class="hl opt">)</span>
conversion<span class="hl opt">=</span><span class="hl num">9</span>
<span class="hl opt">;;</span>
<span class="hl opt">*)</span>
conversion<span class="hl opt">=</span><span class="hl num">0</span>
<span class="hl opt">;;</span>
<span class="hl kwa">esac</span>
<span class="hl kwb">shift</span>
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--wrap</span>|<span class="hl kwb">-w</span><span class="hl opt">)</span>
wrap<span class="hl opt">=</span><span class="hl num">1</span>
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--invertx</span>|<span class="hl kwb">-x</span><span class="hl opt">)</span>
invertx<span class="hl opt">=</span><span class="hl num">1</span>
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--inverty</span>|<span class="hl kwb">-y</span><span class="hl opt">)</span>
inverty<span class="hl opt">=</span><span class="hl num">1</span>
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl kwb">--dryrun</span>|<span class="hl kwb">-d</span><span class="hl opt">)</span>
dryrun<span class="hl opt">=</span>true
<span class="hl kwb">shift</span>
<span class="hl opt">;;</span>
<span class="hl opt">*)</span>
<span class="hl kwb">echo -e</span> <span class="hl str">"</span><span class="hl esc">\n</span><span class="hl str">Usage:</span><span class="hl esc">\n</span><span class="hl str">"</span>
<span class="hl kwb">echo</span> <span class="hl str">"`basename</span> <span class="hl ipl">$0</span><span class="hl str">` [--scale|-s <value>] [--filter|-f <string>]"</span>
<span class="hl kwb">echo</span> <span class="hl str">" [--wrap|-w] [--heightalpha|-a] [--invertx|-x] [--inverty|-y]"</span>
<span class="hl kwb">echo</span> <span class="hl str">" [--conversion|-c <string>] [--skiptools|-t] [--skipinventory|-i [<value>]]"</span>
<span class="hl kwb">echo</span> <span class="hl str">" [--dryrun|-d] [--pattern|-p <pattern>]"</span>
<span class="hl kwb">echo -e</span> <span class="hl str">"</span><span class="hl esc">\n</span><span class="hl str">Defaults to a scale of 8, checking all files in the current directory, and not"</span>
<span class="hl kwb">echo</span> <span class="hl str">"skipping apparent tools or inventory images. Filter, if specified, may be one"</span>
<span class="hl kwb">echo</span> <span class="hl str">"of: sobel3, sobel5, prewitt3, prewitt5, 3x3, 5x5, 7x7, or 9x9, or a value 1"</span>
<span class="hl kwb">echo</span> <span class="hl str">"through 8 (1=sobel3, 2=sobel5, etc.). Defaults to 0 (four-sample). The height"</span>
<span class="hl kwb">echo</span> <span class="hl str">"source is taken from the image's alpha channel if heightalpha is specified.</span><span class="hl esc">\n</span><span class="hl str">"</span>
<span class="hl kwb">echo</span> <span class="hl str">""</span>
<span class="hl kwb">echo</span> <span class="hl str">"If inventory skip is specified, an optional resolution may also be included"</span>
<span class="hl kwb">echo</span> <span class="hl str">"(default is 64). Conversion can be one of: biased, red, green, blue, maxrgb,"</span>
<span class="hl kwb">echo</span> <span class="hl str">"minrgb, colorspace, normalize-only, heightmap or a value from 1 to 9"</span>
<span class="hl kwb">echo</span> <span class="hl str">"corresponding respectively to those keywords. Defaults to 0 (simple"</span>
<span class="hl kwb">echo</span> <span class="hl str">"normalize) if not specified. Wrap, if specified, enables wrapping of the"</span>
<span class="hl kwb">echo</span> <span class="hl str">"normalmap around the edges of the texture (defaults to no). Invert X/Y"</span>
<span class="hl kwb">echo</span> <span class="hl str">"reverses the calculated gradients for the X and/or Y dimensions represented"</span>
<span class="hl kwb">echo</span> <span class="hl str">"by the normalmap (both default to non-inverted)."</span>
<span class="hl kwb">echo</span> <span class="hl str">""</span>
<span class="hl kwb">echo</span> <span class="hl str">"The pattern, can be an escaped pattern string such as \*apple\* or"</span>
<span class="hl kwb">echo</span> <span class="hl str">"default_\*.png or similar (defaults to all PNG and JPG images in the current"</span>
<span class="hl kwb">echo</span> <span class="hl str">"directory that do not contain</span> <span class="hl esc">\"</span><span class="hl str">_normal</span><span class="hl esc">\"</span> <span class="hl str">or</span> <span class="hl esc">\"</span><span class="hl str">_specular</span><span class="hl esc">\"</span> <span class="hl str">in their filenames)."</span>
<span class="hl kwb">echo</span> <span class="hl str">""</span>
<span class="hl kwb">echo</span> <span class="hl str">"If set for dry-run, the actions this script will take will be printed, but no"</span>
<span class="hl kwb">echo</span> <span class="hl str">"images will be generated. Passing an invalid value to a switch will generally"</span>
<span class="hl kwb">echo</span> <span class="hl str">"cause that switch to revert to its default value."</span>
<span class="hl kwb">echo</span> <span class="hl str">""</span>
<span class="hl kwb">exit</span> <span class="hl num">1</span>
<span class="hl opt">;;</span>
<span class="hl kwa">esac</span>
<span class="hl kwa">done</span>
<span class="hl kwb">echo -e</span> <span class="hl str">"</span><span class="hl esc">\n</span><span class="hl str">Processing files based on pattern</span> <span class="hl esc">\"</span><span class="hl str"></span><span class="hl ipl">$pattern</span><span class="hl str"></span><span class="hl esc">\"</span> <span class="hl str">..."</span>
normalMap<span class="hl opt">()</span>
<span class="hl opt">{</span>
out<span class="hl opt">=</span><span class="hl str">`echo "</span><span class="hl ipl">$1</span><span class="hl str">" | sed 's/.png/_normal.png/' | sed 's/.jpg/_normal.png/'`</span>
<span class="hl kwb">echo</span> <span class="hl str">"Launched process to generate normalmap:</span> <span class="hl esc">\"</span><span class="hl str"></span><span class="hl ipl">$1</span><span class="hl str"></span><span class="hl esc">\"</span> <span class="hl str">--></span> <span class="hl esc">\"</span><span class="hl str"></span><span class="hl ipl">$out</span><span class="hl str"></span><span class="hl esc">\"</span><span class="hl str">"</span> <span class="hl opt">>&</span><span class="hl num">2</span>
gimp <span class="hl kwb">-i -b</span> <span class="hl str">"</span>
<span class="hl str"> (define</span>
<span class="hl str"> (normalMap-fbx-conversion fileName newFileName filter nscale wrap heightsource conversion invertx inverty)</span>
<span class="hl str"> (let*</span>
<span class="hl str"> (</span>
<span class="hl str"> (image (car (gimp-file-load RUN-NONINTERACTIVE fileName fileName)))</span>
<span class="hl str"> (drawable (car (gimp-image-get-active-layer image)))</span>
<span class="hl str"> (drawable (car (gimp-image-flatten image)))</span>
<span class="hl str"> )</span>
<span class="hl str"> (if (> (car (gimp-drawable-type drawable)) 1)</span>
<span class="hl str"> (gimp-convert-rgb image) ()</span>
<span class="hl str"> )</span>
<span class="hl str"></span>
<span class="hl str"> (plug-in-normalmap </span>
<span class="hl str"> RUN-NONINTERACTIVE</span>
<span class="hl str"> image</span>
<span class="hl str"> drawable</span>
<span class="hl str"> filter</span>
<span class="hl str"> 0.0</span>
<span class="hl str"> nscale</span>
<span class="hl str"> wrap</span>
<span class="hl str"> heightsource</span>
<span class="hl str"> 0</span>
<span class="hl str"> conversion</span>
<span class="hl str"> 0</span>
<span class="hl str"> invertx</span>
<span class="hl str"> inverty</span>
<span class="hl str"> 0</span>
<span class="hl str"> 0.0</span>
<span class="hl str"> drawable)</span>
<span class="hl str"> (gimp-file-save RUN-NONINTERACTIVE image drawable newFileName newFileName)</span>
<span class="hl str"> (gimp-image-delete image)</span>
<span class="hl str"> )</span>
<span class="hl str"> )</span>
<span class="hl str"> (normalMap-fbx-conversion</span> <span class="hl esc">\"</span><span class="hl str"></span><span class="hl ipl">$1</span><span class="hl str"></span><span class="hl esc">\" \"</span><span class="hl str"></span><span class="hl ipl">$out</span><span class="hl str"></span><span class="hl esc">\"</span> <span class="hl str"></span><span class="hl ipl">$2</span> <span class="hl str"></span><span class="hl ipl">$3</span> <span class="hl str"></span><span class="hl ipl">$4</span> <span class="hl str"></span><span class="hl ipl">$5</span> <span class="hl str"></span><span class="hl ipl">$6</span> <span class="hl str"></span><span class="hl ipl">$7</span> <span class="hl str"></span><span class="hl ipl">$8</span><span class="hl str">)"</span> <span class="hl kwb">-b</span> <span class="hl str">'(gimp-quit 0)'</span>
<span class="hl opt">}</span>
<span class="hl kwb">export -f</span> normalMap
<span class="hl kwa">for</span> <span class="hl kwc">file</span> <span class="hl kwa">in</span> <span class="hl str">`ls</span> <span class="hl ipl">$pattern</span> <span class="hl str">|grep -v "_normal.png"|grep -v "_specular"`</span> <span class="hl opt">;</span> <span class="hl kwa">do</span>
invtest<span class="hl opt">=</span><span class="hl str">`file "</span><span class="hl ipl">$file</span><span class="hl str">" |grep "</span><span class="hl ipl">$invresolution</span> <span class="hl str">x</span> <span class="hl ipl">$invresolution</span><span class="hl str">"`</span>
<span class="hl kwa">if</span> <span class="hl kwd">$skipinventory</span> <span class="hl opt">&& [</span> <span class="hl kwb">-n</span> <span class="hl str">"</span><span class="hl ipl">$invtest</span><span class="hl str">"</span> <span class="hl opt">] ;</span> <span class="hl kwa">then</span>
<span class="hl kwb">echo</span> <span class="hl str">"Skipped presumed "</span><span class="hl kwd">$invresolution</span><span class="hl str">"px inventory image:</span> <span class="hl ipl">$file</span><span class="hl str">"</span> <span class="hl opt">>&</span><span class="hl num">2</span>
<span class="hl kwb">continue</span>
<span class="hl kwa">fi</span>
tooltest<span class="hl opt">=</span><span class="hl str">`echo "</span><span class="hl ipl">$file</span><span class="hl str">" \</span>
<span class="hl str"> | grep -v "_tool" \</span>
<span class="hl str"> | grep -v "_shovel" \</span>
<span class="hl str"> | grep -v "_pick" \</span>
<span class="hl str"> | grep -v "_axe" \</span>
<span class="hl str"> | grep -v "_sword" \</span>
<span class="hl str"> | grep -v "_hoe" \</span>
<span class="hl str"> | grep -v "bucket_"`</span>
<span class="hl kwa">if</span> <span class="hl kwd">$skiptools</span> <span class="hl opt">&& [</span> <span class="hl kwb">-z</span> <span class="hl str">"</span><span class="hl ipl">$tooltest</span><span class="hl str">"</span> <span class="hl opt">] ;</span> <span class="hl kwa">then</span>
<span class="hl kwb">echo</span> <span class="hl str">"Skipped presumed tool image:</span> <span class="hl ipl">$file</span><span class="hl str">"</span> <span class="hl opt">>&</span><span class="hl num">2</span>
<span class="hl kwb">continue</span>
<span class="hl kwa">fi</span>
<span class="hl kwa">if</span> <span class="hl kwd">$dryrun</span> <span class="hl opt">;</span> <span class="hl kwa">then</span>
<span class="hl kwb">echo</span> <span class="hl str">"Would have generated a normalmap for</span> <span class="hl ipl">$file</span><span class="hl str">"</span> <span class="hl opt">>&</span><span class="hl num">2</span>
<span class="hl kwb">continue</span>
<span class="hl kwa">else</span>
<span class="hl kwb">echo</span> <span class="hl esc">\"</span><span class="hl kwd">$file</span><span class="hl esc">\"</span> <span class="hl kwd">$filter $scale $wrap $heightsource $conversion $invertx $inverty</span>
<span class="hl kwa">fi</span>
<span class="hl kwa">done</span> | <span class="hl kwc">xargs</span> <span class="hl kwb">-P</span> <span class="hl kwd">$numprocs</span> <span class="hl kwb">-n</span> <span class="hl num">8</span> <span class="hl kwb">-I</span><span class="hl opt">{}</span> bash <span class="hl kwb">-c</span> normalMap\ \<span class="hl opt">{</span>\<span class="hl opt">}</span>\ \<span class="hl opt">{</span>\<span class="hl opt">}</span>\ \<span class="hl opt">{</span>\<span class="hl opt">}</span>\ \<span class="hl opt">{</span>\<span class="hl opt">}</span>\ \<span class="hl opt">{</span>\<span class="hl opt">}</span>\ \<span class="hl opt">{</span>\<span class="hl opt">}</span>\ \<span class="hl opt">{</span>\<span class="hl opt">}</span>\ \<span class="hl opt">{</span>\<span class="hl opt">}</span>
</code></pre></td></tr></table>
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