Filter 'Illustration Look': Add a 'Strength' slider.

include/david_tschumperle.gmic

@@ -47,36 +47,43 @@ median_color :
 #---------------------
 
 #@gui Illustration Look : fx_illustration_look,fx_illustration_look_preview(0)
+#@gui : Strength (%) = float(100,0,100)
 #@gui : Tone Mapping (%) = float(100,0,100)
 #@gui : Desaturate (%) = float(0,0,100)
 #@gui : Vintage Tone (%) = float(0,0,100)
 #@gui : Output as Multiple Layers = bool(0)
 #@gui : sep = separator(), Preview type = choice("Full","Forward horizontal","Forward vertical","Backward horizontal","Backward vertical","Duplicate top","Duplicate left","Duplicate bottom","Duplicate right","Duplicate horizontal","Duplicate vertical","Checkered","Checkered inverse")
 #@gui : sep = separator(), note = note("<small>Authors: <i>Sébastien Guyader</i> and <i>David Tschumperlé</i>.      Latest update: <i>2017/05/01</i>.</small>")
 fx_illustration_look :
-  repeat $! l[$>] nm=${-gui_layer_name}
+  foreach {
+    nm=${-gui_layer_name}
     to_rgb => base_layer
 
     # Create processed layers.
     +fx_smooth_anisotropic[base_layer] 20,0.16,0.63,0.6,2.35,0.8,30,2,0,1,1,0,1,24 => blur_layer
     +blend[base_layer,blur_layer] grainextract => detail_layer
-    if $2 rgb2hsv[blur_layer] sh[blur_layer] 1 -. {$2%} c. 0,1 rm. hsv2rgb[blur_layer] fi
-    if $3 +fx_mix_rgb[blur_layer] 1,10,0,1,0,0,0.7,-10,0,0,10,0 j[blur_layer] .,0,0,0,0,{$3%} rm. fi
-    if $1 +fx_map_tones_fast[blur_layer] 20,0.2,11,0 j[blur_layer] .,0,0,0,0,{$1%} rm. fi
+    if $3 rgb2hsv[blur_layer] sh[blur_layer] 1 -. {$3%} c. 0,1 rm. hsv2rgb[blur_layer] fi
+    if $4 +fx_mix_rgb[blur_layer] 1,10,0,1,0,0,0.7,-10,0,0,10,0 j[blur_layer] .,0,0,0,0,{$4%} rm. fi
+    if $2 +fx_map_tones_fast[blur_layer] 20,0.2,11,0 j[blur_layer] .,0,0,0,0,{$2%} rm. fi
     simplelocalcontrast_p[blur_layer] 25,1,50,1,1,1,1,1,1,1,1,1
     +fx_graphic_novelfxl[blur_layer] 1,2,6,5,20,0,1.02857,200,0,1,0.0761905,0.0857143,0,0,0,2,1,1,1,1.25714,0.371429,1.04762 => graphicnovel_layer
 
     # Order and set layer properties.
     mv[detail_layer] 0 =>[detail_layer] "name("$nm" [Detail]),mode(grainmerge),opacity(100)"
     mv[graphicnovel_layer] 1 =>[graphicnovel_layer] "name("$nm" [Paint]),mode(normal),opacity(50)"
     mv[blur_layer] 2 =>[blur_layer] "name("$nm" [Base]),mode(normal),opacity(100)"
-    rm[base_layer]
-
-    if !$4 gui_merge_layers => "name("$nm"),mode(normal),opacity(100)" fi
-  done done
+    if $1<100
+      mv[base_layer] 0 =>[base_layer] "name("$nm" [Original]),mode(normal),opacity("{round(100-$1)}")"
+    else
+      rm[base_layer]
+    fi
+    if !$5
+      gui_merge_layers => "name("$nm"),mode(normal),opacity(100)"
+    fi
+  }
 
 fx_illustration_look_preview :
-  gui_split_preview "fx_illustration_look ${1-3},0",$-1
+  gui_split_preview "fx_illustration_look ${1-4},0",$-1
 
 #@gui _<b>Colors</b>
 #---------------------