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WebGL masking issue fixed

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WebGL mask objects can now be nested within masked objects
This commit is contained in:
Mat Groves 2013-11-03 10:46:41 +00:00
parent 932ca80032
commit 85f1bd6557
9 changed files with 233 additions and 36 deletions
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49
bin/pixi.dev.js
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@ -4114,6 +4114,7 @@ PIXI.WebGLGraphics.renderGraphics = function(graphics, projection)
PIXI.deactivatePrimitiveShader();
// return to default shader...
// PIXI.activateShader(PIXI.defaultShader);
}
@ -5774,6 +5775,12 @@ PIXI.WebGLRenderGroup.prototype.renderSpecial = function(renderable, projection)
}
}
flip = false;
var maskStack = [];
var maskPosition = 0;
//var usedMaskStack = [];
PIXI.WebGLRenderGroup.prototype.handleFilterBlock = function(filterBlock, projection)
{
/*
@ -5785,24 +5792,27 @@ PIXI.WebGLRenderGroup.prototype.handleFilterBlock = function(filterBlock, projec
{
if(filterBlock.data instanceof Array)
{
//var filter = filterBlock.data[0];
//console.log(filter)
this.filterManager.pushFilter(filterBlock);//filter);
this.filterManager.pushFilter(filterBlock);
// ok so..
}
else
{
{
maskPosition++;
maskStack.push(filterBlock)
gl.enable(gl.STENCIL_TEST);
gl.colorMask(false, false, false, false);
gl.stencilFunc(gl.ALWAYS,1,0xff);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.REPLACE);
gl.stencilFunc(gl.ALWAYS,1,1);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.INCR);
PIXI.WebGLGraphics.renderGraphics(filterBlock.data, projection);
gl.colorMask(true, true, true, true);
gl.stencilFunc(gl.NOTEQUAL,0,0xff);
gl.stencilFunc(gl.NOTEQUAL,0,maskStack.length);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.KEEP);
}
}
@ -5811,11 +5821,26 @@ PIXI.WebGLRenderGroup.prototype.handleFilterBlock = function(filterBlock, projec
if(filterBlock.data instanceof Array)
{
this.filterManager.popFilter();
// PIXI.popShader();
// gl.uniform2f(PIXI.currentShader.projectionVector, projection.x, projection.y);
}
else
{
var maskData = maskStack.pop(filterBlock)
if(maskData)
{
gl.colorMask(false, false, false, false);
gl.stencilFunc(gl.ALWAYS,1,1);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.DECR);
PIXI.WebGLGraphics.renderGraphics(maskData.data, projection);
gl.colorMask(true, true, true, true);
gl.stencilFunc(gl.NOTEQUAL,0,maskStack.length);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.KEEP);
};
gl.disable(gl.STENCIL_TEST);
}
}

2
bin/pixi.dev.js.map
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8
bin/pixi.js
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16
examples/example 14 - Masking/index double mask.html
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@ -27,14 +27,14 @@
bg.position.x = 620/2;
bg.position.y = 380/2;
stage.addChild(bg);
//stage.addChild(bg);
var bgFront = PIXI.Sprite.fromImage("SceneRotate.jpg");
bgFront.anchor.x = 0.5;
bgFront.anchor.y = 0.5;
stage.addChild(bgFront);
//stage.addChild(bgFront);
// create a renderer instance
var renderer = PIXI.autoDetectRenderer(620, 380);
@ -53,15 +53,21 @@
var mask1 = new PIXI.Graphics();
mask1.beginFill(0);
mask1.drawRect(0, 0, 100, 100)
mask1.drawRect(0, 0, 150, 100)
bgFront.mask = mask1;
var mask2 = new PIXI.Graphics();
mask2.beginFill(0);
mask2.drawRect(500, 100, 100, 100)
mask2.drawRect(20, 50, 300, 100)
bg.mask = mask2;
var container = new PIXI.DisplayObjectContainer();
stage.addChild(container);
container.addChild(bg);
container.addChild(bgFront)
container.mask = mask2;
var count = 0;
stage.click = stage.tap = function()

138
examples/example 14 - Masking/index nested masks.html Normal file
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@ -0,0 +1,138 @@
<!DOCTYPE HTML>
<html>
<head>
<title>pixi.js example 14 - Masking</title>
<style>
body {
margin: 0;
padding: 0;
background-color: #000000;
}
</style>
<script src="../../bin/pixi.dev.js"></script>
</head>
<body>
<script>
// create an new instance of a pixi stage
var stage = new PIXI.Stage(0xFFFFFF, true);
stage.interactive = true;
var bg = PIXI.Sprite.fromImage("BGrotate.jpg");
bg.anchor.x = 0.5;
bg.anchor.y = 0.5;
bg.position.x = 620/2;
bg.position.y = 380/2;
//stage.addChild(bg);
//stage.addChild(bgFront);
// create a renderer instance
var renderer = PIXI.autoDetectRenderer(620, 380);
renderer.view.style.position = "absolute"
renderer.view.style.marginLeft = "-310px";
renderer.view.style.marginTop = "-190px";
renderer.view.style.top = "50%";
renderer.view.style.left = "50%";
renderer.view.style.display = "block";
// add render view to DOM
document.body.appendChild(renderer.view);
// lets create moving shape
var mask2 = new PIXI.Graphics();
mask2.beginFill(0);
mask2.drawCircle(620/2, 380/2, 300)
var container = new PIXI.DisplayObjectContainer();
stage.addChild(container);
container.addChild(bg);
container.mask = mask2;
for (var i = 0; i < 4; i++)
{
var bear = PIXI.Sprite.fromImage("panda.png");
var mask1 = new PIXI.Graphics();
mask1.beginFill(0);
mask1.drawRect(20, 40, 100, 100)
bear.mask = mask1;
bear.addChild(mask1);
container.addChild(bear);
bear.position.x = i * 50;
};
var count = 0;
stage.click = stage.tap = function()
{
if(!container.filter)
{
container.mask = thing;
PIXI.runList(stage);
}
else
{
container.mask = null;
}
}
/*
* Add a pixi Logo!
*/
var logo = PIXI.Sprite.fromImage("../../logo_small.png")
stage.addChild(logo);
logo.anchor.x = 1;
logo.position.x = 620
logo.scale.x = logo.scale.y = 0.5;
logo.position.y = 320
logo.interactive = true;
logo.buttonMode = true;
logo.click = logo.tap = function()
{
window.open("https://github.com/GoodBoyDigital/pixi.js", "_blank")
}
var help = new PIXI.Text("Click to turn masking on / off.", {font:"bold 12pt Arial", fill:"white"});
help.position.y = 350;
help.position.x = 10;
stage.addChild(help);
requestAnimFrame(animate);
function animate() {
bg.rotation += 0.01;
count += 0.1;
renderer.render(stage);
requestAnimFrame( animate );
}
</script>
</body>
</html>

5
examples/example 14 - Masking/index.html
View file

@ -133,7 +133,7 @@
count += 0.1;
thing.clear();
thing.lineStyle(5, 0x16f1ff, 1);
thing.beginFill(0x8bc5ff, 0.4);
thing.moveTo(-120 + Math.sin(count) * 20, -100 + Math.cos(count)* 20);
thing.lineTo(120 + Math.cos(count) * 20, -100 + Math.sin(count)* 20);
@ -142,6 +142,9 @@
thing.lineTo(-120 + Math.sin(count) * 20, -100 + Math.cos(count)* 20);
thing.rotation = count * 0.1;
//var mask1 = new PIXI.Graphics();
renderer.render(stage);
requestAnimFrame( animate );
}

2
examples/example 15 - Filters/indexAll.html
View file

@ -32,7 +32,7 @@
var gui = new dat.GUI({
//height : 5 * 32 - 1,
width : 350
//width : 350
});
var blurFilter = new PIXI.BlurFilter();

1
src/pixi/renderers/webgl/WebGLGraphics.js
View file

@ -80,6 +80,7 @@ PIXI.WebGLGraphics.renderGraphics = function(graphics, projection)
PIXI.deactivatePrimitiveShader();
// return to default shader...
// PIXI.activateShader(PIXI.defaultShader);
}

48
src/pixi/renderers/webgl/WebGLRenderGroup.js
View file

@ -284,6 +284,12 @@ PIXI.WebGLRenderGroup.prototype.renderSpecial = function(renderable, projection)
}
}
flip = false;
var maskStack = [];
var maskPosition = 0;
//var usedMaskStack = [];
PIXI.WebGLRenderGroup.prototype.handleFilterBlock = function(filterBlock, projection)
{
/*
@ -295,24 +301,27 @@ PIXI.WebGLRenderGroup.prototype.handleFilterBlock = function(filterBlock, projec
{
if(filterBlock.data instanceof Array)
{
//var filter = filterBlock.data[0];
//console.log(filter)
this.filterManager.pushFilter(filterBlock);//filter);
this.filterManager.pushFilter(filterBlock);
// ok so..
}
else
{
{
maskPosition++;
maskStack.push(filterBlock)
gl.enable(gl.STENCIL_TEST);
gl.colorMask(false, false, false, false);
gl.stencilFunc(gl.ALWAYS,1,0xff);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.REPLACE);
gl.stencilFunc(gl.ALWAYS,1,1);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.INCR);
PIXI.WebGLGraphics.renderGraphics(filterBlock.data, projection);
gl.colorMask(true, true, true, true);
gl.stencilFunc(gl.NOTEQUAL,0,0xff);
gl.stencilFunc(gl.NOTEQUAL,0,maskStack.length);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.KEEP);
}
}
@ -321,11 +330,26 @@ PIXI.WebGLRenderGroup.prototype.handleFilterBlock = function(filterBlock, projec
if(filterBlock.data instanceof Array)
{
this.filterManager.popFilter();
// PIXI.popShader();
// gl.uniform2f(PIXI.currentShader.projectionVector, projection.x, projection.y);
}
else
{
var maskData = maskStack.pop(filterBlock)
if(maskData)
{
gl.colorMask(false, false, false, false);
gl.stencilFunc(gl.ALWAYS,1,1);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.DECR);
PIXI.WebGLGraphics.renderGraphics(maskData.data, projection);
gl.colorMask(true, true, true, true);
gl.stencilFunc(gl.NOTEQUAL,0,maskStack.length);
gl.stencilOp(gl.KEEP,gl.KEEP,gl.KEEP);
};
gl.disable(gl.STENCIL_TEST);
}
}