From: kramm Date: Sun, 21 Jan 2007 21:19:28 +0000 (+0000) Subject: added filters, blend modes X-Git-Tag: release-0-8-0~17 X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=commitdiff_plain;h=01b3fac78f03337c05c4b46edae5cc45630c6ca6 added filters, blend modes --- diff --git a/doc/swfc.xml b/doc/swfc.xml index 278ac55..c5c49d2 100644 --- a/doc/swfc.xml +++ b/doc/swfc.xml @@ -335,8 +335,8 @@ which is used here together with the alpha parameter of .change: .flash filename="text6.swf" .font times "Times.swf" -.text hello text="HELLO" font=times size=100% color=blue -.text world text="WORLD" font=times size=100% color=red +.text hello text="HELLO" font=times size=200% color=blue +.text world text="WORLD" font=times size=200% color=red .frame 1 .put hello pin=center x=50 y=50 @@ -351,32 +351,28 @@ which is used here together with the alpha parameter of .change:
+Another example for clipping against text: -.flash filename="xorclip.swf" bbox=640x480 background=black version=6 +.flash filename="textclip.swf" bbox=400x120 background=black version=6 .font times "Times.swf" -.textshape helloworld text="HELLO WORLD" font=times size=500% +.textshape helloworld text="HELLO WORLD" font=times size=300% .filled helloworld1 outline=helloworld fill=blue line=0 .filled helloworld2 outline=helloworld fill=green line=0 .frame 1 - .box background width=640 height=480 fill=white line=0 - .sprite twotexts - .put h1=helloworld1 y=200 - .put h2=helloworld2 y=200 - .frame 1000 - .change h1 x=-500 - .change h2 x=-1000 - .end - - .startclip twotexts - .put background - .end +.put h3=helloworld1 y=100 +.startclip h1=helloworld1 y=100 + .put h2=helloworld2 y=100 +.end + .frame 1000 +.change h1 x=-1000 +.change h2 x=-500 +.change h3 x=-1000 .end -
@@ -387,10 +383,10 @@ and set from ActionScript (see below). You can generate this type of text with the .edittext command: -.flash filename="edittext.swf" bbox=210x110 +.flash filename="edittext.swf" bbox=410x210 .font Arial "Arial.swf" - .edittext myedittext font=Arial size=20% - width=200 height=100 + .edittext myedittext font=Arial size=50% + width=400 height=200 color=blue border multiline wordwrap text="Edit me!\nClick with your mouse on this text to edit it." .put myedittext x=3 y=3 @@ -770,4 +766,216 @@ outside the active area, it's easy to generate tooltips or subtitles. + + +Blend modes were introduced in Flash 8. They allow to use different alrithmetrics when +it comes to putting transparent (or semi transparent) shapes or images on top of each +other. +The diffent blend modes are: + + +normal +layer +multiply +screen +lighten +darken +add +substract +difference +invert +alpha +erase +overlay +hardlight + + +For example, in order to set a "invert" blend mode: + + +.flash filename="invert.swf" fps=50 bbox=511x127 +.jpeg pic stripe.jpg +.put pic +.font arial Arial.ttf +.text txt font=arial text="Test inverted blend mode... ABCDEFGHIJKLMNOPQRSTUVWXYZ" size=200% + +.put txt x=512 y=120 blend=invert +.frame 700 +.change txt x=-4096 +.end + + +The layer blend modes is especially useful, if you want to +make sprite transparent. Compare the two stacks of rectangles +in the next example. In the left one (set without layer), when +the sprite is made transparent via alpha=50%, the rectangles +also are transparent in respect to each other- i.e., you don't get +a transparent image of a stack of rectangles, you get an image +of a stack of transparent rectangles. On the right side, the +stack is set with layer, and only the whole sprite get's +transparent. + + +.flash filename="layer.swf" fps=50 bbox=511x127 +.jpeg background stripe.jpg +.put background + +.box b1 fill=green width=100 height=100 +.box b2 fill=cyan width=100 height=100 +.box b3 fill=blue width=100 height=100 +.sprite s1 + .put b1 + .put b2 x=25 y=25 + .put b3 x=50 y=50 +.end +.sprite s2 + .put b1 + .put b2 x=25 y=25 + .put b3 x=50 y=50 +.end + +.put s1 alpha=50% +.put s2 alpha=50% x=300 blend=layer + +.end + + + + + + +

+An especially nice new feature of Flash 8 are filters. +

+

+The current version of swfc supports the following filters: +

+ + +dropshadow +blur +gradientglow +bevel + + +
The "dropshadow" filter + +dropsshadow can be used to add shadows below (or above) flash +objects. +Every shadow has a color, and a direction/distance parameter (angle,distance), +which controls where the shadow will be placed. +The shadow is calculated by blurring (radios blur the alpha layer of the corresponding object, +strengthening it (multiplication with strength), filling it with color +and then merging it with the background. +If the optional knockout option is given, the original object is removed, only the shadow +is visible. If the innershadow parameter is given, the shadow will be inside the +object. + + +.flash filename="shadow.swf" version=8 bbox=430x140 background=blue + .font myfont "Times.ttf" + .text mytext text="SHADOW" font=myfont size=140% color=yellow + .dropshadow myshadow color=black blur=5 angle=45 distance=50 passes=2 strength=1 + .put mytext filter=myshadow y=75 +.end + + +
+
The "bevel" filter + +

+The bevel filter essentially applies two shadows at once, at opposite directions. +It supports the same arguments as the dropshadow filter, and also the optional +ontop argument, which, if given, moves the "shadows" above the image. (useful +together with knockout). +

+ +The following example demonstrates another feature of the swfc filter implementation: filters +can also be animated. + + +.flash filename="bevel.swf" version=8 background=blue fps=12 + .font arial "Arial.ttf" + .text abc text="FILTERS" font=arial size=130% color=red + .text beveltxt text="BEVEL" font=arial size=130% color=red + + .bevel bevel0 highlight=white shadow=black blur=9 angle=45 distance=4 passes=2 strength=2 knockout + .bevel bevel1 highlight=white shadow=black blur=14 angle=45 distance=6 passes=2 strength=2 knockout + + .bevel bevel2 highlight=white shadow=black blur=7 angle=0 distance=6 passes=2 strength=1 innershadow knockout + .bevel bevel3 highlight=white shadow=black blur=7 angle=360 distance=6 passes=2 strength=1 innershadow knockout + + .put beveltxt filter=bevel0 + .put abc filter=bevel2 y=80 + .frame 50 + .change beveltxt filter=bevel1 + .frame 100 + .change beveltxt filter=bevel0 + .change abc filter=bevel3 +.end + + +
+
The "blur" filter + +The blur filter is probably the most simple filter- it only +takes a blur radius and a number of passes. It then performs a blur effect +by smoothening an area of blurx times blury pixels. + + +.flash filename="blur.swf" version=8 fps=50 bbox=200x200 + .font arial "Arial.ttf" + .blur myblur1 blur=100 passes=2 # blur=100 is an abbreviation for blurx=100 blury=100 + .blur myblur2 blurx=0 blury=0 passes=2 + .blur myblur3 blurx=0 blury=100 passes=2 + .textshape abc text="BLUR" font=arial size=100% + .filled fabc outline=abc line=2 color=blue fill=white + .filled fabc2 outline=abc line=2 color=red fill=yellow + .sprite mysprite + .put fabc pin=center x=100 y=100 + .put fabc2 pin=center x=100 y=100 + .frame 200 + .change fabc pin=center rotate=360 + .change fabc2 pin=center rotate=-360 + .end + .put mysprite filter=myblur1 + .frame 200 + .change mysprite filter=myblur2 + .frame 400 + .change mysprite filter=myblur3 +.end + + +
+
The "gradientglow" filter + +gradientglow is like the shadow filter, only that the +resulting shadow color is calculated from a gradient instead of a single color. + + +.flash filename="filters.swf" version=8 + .font times "Times.ttf" + .text abc text="Gradientglow" font=times size=100% color=blue + .gradient fire: + 0% black/00 + 25% red/40 + 50% orange/80 + 75% yellow/c0 + 100% white/ff + .end + .gradientglow fireglow1 gradient=fire blur=20 innershadow angle=1 distance=20 + .gradientglow fireglow2 gradient=fire blur=20 angle=0 distance=2 passes=1 knockout + .gradientglow fireglow3 gradient=fire blur=20 angle=0 distance=2 passes=1 ontop + + .put abc1=abc filter=fireglow1 + .put abc2=abc y=50 filter=fireglow2 + .put abc3=abc y=100 filter=fireglow3 +.end + + + +
+ + +