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Anonymous
August 24, 2017
Question

Increment Opacity and Flow

  • August 24, 2017
  • 2 replies
  • 1291 views

I'm trying to make a script to increment Opacity and Flow. I jumbled together the script fromRe: Is it possible to script brush opacity?  and Re: brush opacity for scripting

Opacity Increment:

  1. function SetPaintBrush(opacity) {    
  2.   var idset = stringIDToTypeID( "set" );    
  3.   var desc226 = new ActionDescriptor();    
  4.   var idnull = stringIDToTypeID( "null" );    
  5.   var ref170 = new ActionReference();    
  6.     var idPbTl = stringIDToTypeID( "paintbrushTool" );    
  7.     ref170.putClass( idPbTl );    
  8.     desc226.putReference( idnull, ref170 );    
  9.     var id12 = stringIDToTypeID( "to" );    
  10.     var desc5 = new ActionDescriptor();    
  11.     // opacity    
  12.     var id13 = stringIDToTypeID( "opacity" );    
  13.     var id14 = stringIDToTypeID( "percentUnit" );    
  14.   desc5.putUnitDouble( id13, id14, opacity );      
  15.     var id18 = stringIDToTypeID( "null" );    
  16.     desc226.putObject( id12, id18, desc5 );    
  17.   executeAction( idset, desc226, DialogModes.NO );    
  18.   }  
  19.   
  20.   
  21. function BrushOpacityGet()  
  22. {  
  23.   var ref = new ActionReference();  
  24.   ref.putEnumerated(charIDToTypeID("capp"),   
  25.                     charIDToTypeID("Ordn"),   
  26.                     charIDToTypeID("Trgt")  
  27.                     );   
  28.   var AD = executeActionGet(ref);  
  29.   AD = AD.getObjectValue(stringIDToTypeID("currentToolOptions"));  
  30.   return(AD.getInteger(stringIDToTypeID("opacity")));  
  31. }  
  32.   
  33.   
  34. opacity = BrushOpacityGet();  
  35. var op = opacity+5;  
  36. SetPaintBrush(op); 

Flow Increment:

  1. function SetPaintBrush(flow) {    
  2.   var idset = stringIDToTypeID( "set" );    
  3.   var desc226 = new ActionDescriptor();    
  4.   var idnull = stringIDToTypeID( "null" );    
  5.   var ref170 = new ActionReference();    
  6.     var idPbTl = stringIDToTypeID( "paintbrushTool" );    
  7.     ref170.putClass( idPbTl );    
  8.     desc226.putReference( idnull, ref170 );    
  9.     var id12 = stringIDToTypeID( "to" );    
  10.     var desc5 = new ActionDescriptor();    
  11.     // flow    
  12.     var id14 = stringIDToTypeID( "percentUnit" );  
  13.     var id19 = stringIDToTypeID( "flow" );    
  14.   desc5.putUnitDouble( id19, id14, flow );    
  15.     var id18 = stringIDToTypeID( "null" );    
  16.     desc226.putObject( id12, id18, desc5 );    
  17.   executeAction( idset, desc226, DialogModes.NO );    
  18.   }  
  19.   
  20.   
  21. function BrushOpacityGet()  
  22. {  
  23.   var ref = new ActionReference();  
  24.   ref.putEnumerated(charIDToTypeID("capp"),   
  25.                     charIDToTypeID("Ordn"),   
  26.                     charIDToTypeID("Trgt")  
  27.                     );   
  28.   var AD = executeActionGet(ref);  
  29.   AD = AD.getObjectValue(stringIDToTypeID("currentToolOptions"));  
  30.   return(AD.getInteger(stringIDToTypeID("flow")));  
  31. }  
  32.   
  33.   
  34. flow = BrushOpacityGet();  
  35. var flo = flow+5;  
  36. SetPaintBrush(flo); 

It almost works, but there's two major issues on the script

1. It turns on Shape Dynamics and Scattering and turns off any other parameters (Transfer, Dual Brush, etc.)

2. The script is pretty slow the first time it runs

Anyone know what is causing this, and how to fix it?

Any help will be appreciated!

    2 replies

    tomzag
    tomzag
    Inspiring
    September 11, 2017

    Gelicider  schrieb

    1. It turns on Shape Dynamics and Scattering and turns off any other parameters (Transfer, Dual Brush, etc.)

    This is also a big problem for me. As I can see "Scattering" and "Smoothing" will be turned on, all others off.

    I'm using this function (found in the forum here):

        function SetPaintBrush(mode, opacity, flow, penopacity, pensize, penair) {
            var idset = stringIDToTypeID("set");
            var desc226 = new ActionDescriptor();
            var idnull = stringIDToTypeID("null");
            var ref170 = new ActionReference();
            var idPbTl = stringIDToTypeID("paintbrushTool");
            ref170.putClass(idPbTl);
            desc226.putReference(idnull, ref170);
            var id12 = stringIDToTypeID("to");
            var desc5 = new ActionDescriptor();
            // opacity  
            var id13 = stringIDToTypeID("opacity");
            var id14 = stringIDToTypeID("percentUnit");
            desc5.putUnitDouble(id13, id14, opacity);
            // blend mode  
            var id15 = stringIDToTypeID("mode");
            var id16 = stringIDToTypeID("blendModel");
            var id17 = stringIDToTypeID(mode);
            desc5.putEnumerated(id15, id16, id17);
            // flow  
            var id19 = stringIDToTypeID("flow");
            desc5.putUnitDouble(id19, id14, flow);
            // pressure for opacity  
            desc5.putBoolean(stringIDToTypeID("usePressureOverridesOpacity"), penopacity);
            // pressure for size  
            desc5.putBoolean(stringIDToTypeID("usePressureOverridesSize"), pensize);
            // enable air brush  
            desc5.putBoolean(stringIDToTypeID("repeat"), penair);
            var id18 = stringIDToTypeID("null");
            desc226.putObject(id12, id18, desc5);
            executeAction(idset, desc226, DialogModes.NO);
        }

    It happens the same.

    My plugins: https://plugins.pixelsucht.net/
      Naoki-Hada
      Naoki-Hada
      Known Participant
      November 16, 2017

      tomzag​ Gelicider​

      I had same issue.

      r-bin​ 's code at following thread seems working without resetting issue.

      Thank you,

      Naoki

      Flowgun
      Flowgun
      Inspiring
      July 14, 2025

      Hello,
      I know this is an old post, but I can't find rbin's code that changes blend modes without affecting scattering and other settings. can you please share it or share a link to it?

      Davide_Barranca12040269
      Davide_Barranca12040269
      Legend
      August 24, 2017

      Hi,

      very likely problem #2 (the slowness of the first time run) is due to the fact that the BrushOpacityGet is getting the entire Application's descriptor (which contains lots of information that you don't really need). The following implementation gets the tool only, so it should be faster:

      function BrushOpacityGet()    
      {    
        var ref = new ActionReference();    
        ref.putProperty (stringIDToTypeID ("property"), stringIDToTypeID ("tool")); // Gets only the "tool"
        ref.putEnumerated(charIDToTypeID("capp"),     
                          charIDToTypeID("Ordn"),     
                          charIDToTypeID("Trgt")    
                          );     
        var AD = executeActionGet(ref);    
        AD = AD.getObjectValue(stringIDToTypeID("currentToolOptions"));    
        return(AD.getInteger(stringIDToTypeID("opacity")));    
      }

      Let me think about problem #1...

      Davide

      Davide Barranca - PS developer and authorwww.ps-scripting.com
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