Stroke alpha - drawing with lineStyle on shape graphics

[andrewskorik]

stroke alpha isn't used. upd: * - drawing with lineStyle on shape graphics

[IonSwitz]

In what scenario?

In this scenario, both the alpha supplied in the addVertex method call, and the alpha set on the stroke itself result in transparency, and yield expected results.

        var stroke:Stroke = new Stroke();
        stroke.addVertex(100, 100, 1, 0xFFFFFF, 0, 0xFFFFFF, 0);
        stroke.addVertex(150, 150);
        stroke.addVertex(250, 200);
        stroke.addVertex(250, 200);
        stroke.addVertex(400, 300);
        stroke.addVertex(400, 400, 1, 0xFFFFFF, 0, 0xFFFFFF, 0);
        stroke.alpha = 0.3;
        addChild(stroke);

Do you have an example where the alpha isn't used?

[AlBirdie]

Alpha is working properly for me as well. Never had an issue with that.

[andrewskorik]

var sh:Shape = new Shape () addChild (sh); ... sh.graphics.clear(); sh.graphics.lineStyle((1/scale) * thickness, 0x325d63, 0.2); sh.graphics.drawCircle(0, 0, radius); sh.graphics.endFill ();

Circle drawed with full 1.0 alpha. seems sh.alpha = 0.2 also don't affects this.

[IonSwitz]

Ok, thank you for reporting this.

I will look into this asap. Always easier with a test case to find the problem :)

EDIT: Not knowing your values for "scale", "thickness" and "radius", I replaced those with static values. In this test case, alpha works flawlessly:

var sh:Shape = new Shape (); addChild (sh);

sh.graphics.clear(); sh.graphics.lineStyle(3, 0x325d63, 0.6); sh.graphics.drawCircle(200, 200, 80); sh.graphics.endFill ();

Also, setting the alpha value on the Shape works for me too:

sh.alpha = 1; v.s. sh.alpha = 0;

Yield a visible v.s an invisible circle.

Are you running off the SWC or off the source tree?

[andrewskorik]

:) thank you! Nice extension anyway!

[IonSwitz]

Thanks for using and enjoying the extension and for reporting issues :)

As I wrote above here, I am unable to reproduce the problem, using the static scale, thickness, and radius values above.

What platform are you running on? I don't have a mobile platform to run on, but in a Windows Flash Player, the code works fine.

[andrewskorik]

Flex app with starling scene. It's have nested structure.. shape placed in several nested sprites, and root sprite is scaled. drawing on shape graphics done with 1/scale to achive correct thickness of lines on screen. screenshot from app

For now i used another color of lines, to compensate alpha :)

System info : Capabilities playerType:"StandAlone", version:"WIN 12,0,0,38", screenColor:"color", isEmbeddedInAcrobat:false, language:"ru", hasEmbeddedVideo:true, screenDPI:72, hasAudio:true, screenResolutionX:1920, avHardwareDisable:false, screenResolutionY:1080, hasAccessibility:false, touchscreenType:"none", hasAudioEncoder:true, pixelAspectRatio:1, hasMP3:true, hasTLS:true, hasPrinting:true, maxLevelIDC:"5.1", hasScreenBroadcast:false, supports32BitProcesses:true, hasScreenPlayback:false, supports64BitProcesses:false, hasStreamingAudio:true, hasIME:true, hasStreamingVideo:true, hasVideoEncoder:true, prototype:{Object }, isDebugger:true, localFileReadDisable:false, manufacturer:"Adobe Windows", _internal:4, os:"Windows 7", cpuArchitecture:"x86"}

[IonSwitz]

Could you please check what the values of scale, thickness and radius is in your example? If I get the same values that you use when things don't work, maybe I will be able to get a reproduction case on my machine as well...

Oh, and also, I see that you use Flash Player 12. I am using 11.9. Would it be hard for you to run it in Flash Player 11.8 or 11.9? I am on my work computer now, and am unable to run FP 12.

[andrewskorik]

tested on 11.8 - same result. added another shape to root without any scale - and catched strange results with 1px width - it looks as stroke without any smoothing.. but if I increase value to 10 px

var sh:Shape = new Shape (); sh.graphics.lineStyle(10, 0xffffff, 0.1); sh.graphics.drawCircle(400,400,200); sh.graphics.endFill(); addChild(sh);

It's look like gradient-filled stroke

[andrewskorik]

same with lines in scaled nested shape if i increase value

sh.graphics.lineStyle((1/scale) * 10, 0x325d63, 0.2);

seems it's not scale or something else issue..

[IonSwitz]

Not sure why I didn't ask this before, but why the endFill, when you do not have a beginFill of any kind?

[andrewskorik]

old stupid habit :) but not sure if this has effect

[IonSwitz]

Could you check if you have any filters applied to any displayObjects in the parent chain? I really am unable to reproduce this, even if I create a object hierarchy and set scaling etc on the parent objects. Have you used "flatten" on any parent Sprites? Anything like that?

For me: the strokes that gets drawn are uniform in color, with the same alpha set over the entire Shape. :(

I mean, I guess that's good, but it's super annoying to not be able to reproduce a problem :)

[andrewskorik]

Hi, ok I will try to isolate this and provide sample. No, filters not used. I've used blend mode "SCREEN" on underlaying texture pattern (several layers with stars on bg) And yes. Active stars - flattened (sprites with image and textfield)

ó Õ×ÁÖÅÎÉÅÍ, óËÏÒÉË áÎÄÒÅÊ. andrewskorik@gmail.com