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Merge pull request #12 from netgrind/master

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fixed chromatic~
This commit is contained in:
Лu Лinveгa
2017-01-12 14:30:49 -07:00
committed by GitHub
parent b6a61cd0d5 747e736073
commit 35eabf2183
1 changed files with 62 additions and 37 deletions
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99
scripts/filters/chromatic.js
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@@ -2,42 +2,67 @@ function Filter_Chromatic()
{
Filter.call(this);
this.parameters = [];
this.parameters = [Value, Position];
//value is maximum distance pixels are shifted
//position is where the pixels are shifted from, defaults to half the image
this.render = function(cmd)
{
var position = cmd.position() ? cmd.position() : new Position(ronin.surface.size.width,ronin.surface.size.height);
var value = cmd.value() ? cmd.value().float : 5;
ronin.overlay.clear();
this.draw(this.context(),value,position);
ronin.overlay.clear();
}
this.preview = function(cmd)
{
if(cmd.position()){
ronin.overlay.clear();
ronin.overlay.draw_pointer(cmd.position());
}
}
this.draw = function(context = this.context(), value, position)
{
var w = ronin.surface.size.width;
var h = ronin.surface.size.height;
//no longer letting you set how far each chanel is shifted, not sure how to receive extra data any more
var s = {r:value,g:value*.5,b:0};
var context = ronin.surface.active_layer.context();
//now need two imagedatas to sample off of, for some reason I cant just dump the new pixels into an empty array :/
var originalData = context.getImageData(0, 0, w*2, h*2);
var imageData = context.getImageData(0, 0, w*2, h*2);
var maxLength = Math.sqrt(w*w+h*h);
for (var i=0; i<w*2; i++) {
for(var j=0; j<h*2; j++){
var x = i-position.x;
var y = j-position.y;
var a = Math.atan2(y,x);
var d = Math.sqrt(x*x+y*y);
var f = (d-s.r*d/maxLength);
x = Math.cos(a)*f+position.x;
y = Math.sin(a)*f+position.y;
var r = this.get_color_bilinear(originalData, x, y);
f = (d-s.g*d/maxLength);
x = Math.cos(a)*f+position.x;
y = Math.sin(a)*f+position.y;
var g = this.get_color_bilinear(originalData, x, y);
f = (d-s.b*d/maxLength);
x = Math.cos(a)*f+position.x;
y = Math.sin(a)*f+position.y;
var b = this.get_color_bilinear(originalData, x, y);
var c = {r:r.r, g:g.g, b:b.b,a:Math.max(r.a, Math.max(g.a,b.a))};
this.set_color(imageData, c, i,j);
}
}
ronin.surface.active_layer.clear();
context.putImageData(imageData, 0, 0);
}
// var pixels = this.pixels();
// var s;
// if(p.length === 0)
// s = {r:2,g:2,b:2};
// else if(p.length < 3)
// s = {r:parseFloat(p[0]), g:parseFloat(p[0])*.5, b:0};
// else
// s = {r:parseFloat(p[0]), g:parseFloat(p[1]), b:parseFloat(p[2])};
// var hw = pixels.width*.5;
// var hh = pixels.height*.5;
// var maxLength = Math.sqrt(hw*hw+hh*hh);
// var output = new ImageData(pixels.width, pixels.height);
// for (var i=0; i<pixels.width; i++) {
// for(var j=0; j<pixels.height; j++){
// var x = i-hw;
// var y = j-hh;
// var a = Math.atan2(y,x);
// var d = Math.sqrt(x*x+y*y);
// var f = (d-s.r*d/maxLength);
// x = Math.cos(a)*f+hw;
// y = Math.sin(a)*f+hh;
// var r = this.get_color_bilinear(pixels, x, y);
// f = (d-s.g*d/maxLength);
// x = Math.cos(a)*f+hw;
// y = Math.sin(a)*f+hh;
// var g = this.get_color_bilinear(pixels, x, y);
// f = (d-s.b*d/maxLength);
// x = Math.cos(a)*f+hw;
// y = Math.sin(a)*f+hh;
// var b = this.get_color_bilinear(pixels, x, y);
// var c = {r:r.r, g:g.g, b:b.b,a:Math.max(r.a, Math.max(g.a,b.a))};
// this.set_color(output, c, i,j);
// }
// }
// ronin.canvas.clear();
// ronin.surface.context().putImageData(output, 0, 0, 0, 0, pixels.width, pixels.height);
}