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Mat Groves 2013-11-02 11:37:42 +00:00
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docs/files/src_pixi_textures_RenderTexture.js.html
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@ -2,12 +2,12 @@
<html lang="en">
<head>
<meta charset="utf-8">
<title>src&#x2F;pixi&#x2F;textures&#x2F;RenderTexture.js - Pixi.JS</title>
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<title>src/pixi/textures/RenderTexture.js - Pixi.JS</title>
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<body class="yui3-skin-sam">
@ -15,7 +15,7 @@
<div id="hd" class="yui3-g header">
<div class="yui3-u-3-4">
<h1><img src="http:&#x2F;&#x2F;www.goodboydigital.com&#x2F;pixijs&#x2F;logo_small.png" title="Pixi.JS"></h1>
<h1><img src="http://www.goodboydigital.com/pixijs/logo_small.png" title="Pixi.JS"></h1>
</div>
<div class="yui3-u-1-4 version">
@ -41,71 +41,95 @@
<div id="api-tabview-panel">
<ul id="api-classes" class="apis classes">
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<li><a href="../classes/BaseTexture.html">BaseTexture</a></li>
<li><a href="..&#x2F;classes/BitmapText.html">BitmapText</a></li>
<li><a href="../classes/BitmapFontLoader.html">BitmapFontLoader</a></li>
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<li><a href="..&#x2F;classes/Sprite.html">Sprite</a></li>
<li><a href="../classes/PixelateFilter.html">PixelateFilter</a></li>
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<li><a href="../classes/Polygon.html">Polygon</a></li>
<li><a href="..&#x2F;classes/Text.html">Text</a></li>
<li><a href="../classes/PolyK._convex.html">PolyK._convex</a></li>
<li><a href="..&#x2F;classes/Texture.html">Texture</a></li>
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<li><a href="../classes/PolyK.InteractionManager.html">PolyK.InteractionManager</a></li>
<li><a href="../classes/Rectangle.html">Rectangle</a></li>
<li><a href="../classes/RenderTexture.html">RenderTexture</a></li>
<li><a href="../classes/SepiaFilter.html">SepiaFilter</a></li>
<li><a href="../classes/Spine.html">Spine</a></li>
<li><a href="../classes/Sprite.html">Sprite</a></li>
<li><a href="../classes/SpriteSheetLoader.html">SpriteSheetLoader</a></li>
<li><a href="../classes/Stage.html">Stage</a></li>
<li><a href="../classes/Text.html">Text</a></li>
<li><a href="../classes/Texture.html">Texture</a></li>
<li><a href="../classes/TilingSprite.html">TilingSprite</a></li>
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</ul>
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</div>
@ -142,15 +166,15 @@
<div class="apidocs">
<div id="docs-main">
<div class="content">
<h1 class="file-heading">File: src&#x2F;pixi&#x2F;textures&#x2F;RenderTexture.js</h1>
<h1 class="file-heading">File: src/pixi/textures/RenderTexture.js</h1>
<div class="file">
<pre class="code prettyprint linenums">
&#x2F;**
* @author Mat Groves http:&#x2F;&#x2F;matgroves.com&#x2F; @Doormat23
*&#x2F;
/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
&#x2F;**
/**
A RenderTexture is a special texture that allows any pixi displayObject to be rendered to it.
__Hint__: All DisplayObjects (exmpl. Sprites) that renders on RenderTexture should be preloaded.
@ -160,8 +184,8 @@
var renderTexture = new PIXI.RenderTexture(800, 600);
var sprite = PIXI.Sprite.fromImage(&quot;spinObj_01.png&quot;);
sprite.position.x = 800&#x2F;2;
sprite.position.y = 600&#x2F;2;
sprite.position.x = 800/2;
sprite.position.y = 600/2;
sprite.anchor.x = 0.5;
sprite.anchor.y = 0.5;
renderTexture.render(sprite);
@ -170,25 +194,25 @@
var doc = new PIXI.DisplayObjectContainer();
doc.addChild(sprite);
renderTexture.render(doc); &#x2F;&#x2F; Renders to center of renderTexture
renderTexture.render(doc); // Renders to center of renderTexture
@class RenderTexture
@extends Texture
@constructor
@param width {Number}
@param height {Number}
**&#x2F;
@param width {Number} The width of the render texture
@param height {Number} The height of the render texture
*/
PIXI.RenderTexture = function(width, height)
{
PIXI.EventTarget.call( this );
this.width = width || 100;
this.height = height || 100;
this.indetityMatrix = PIXI.mat3.create();
this.frame = new PIXI.Rectangle(0, 0, this.width, this.height);
if(PIXI.gl)
{
this.initWebGL();
@ -199,19 +223,25 @@ PIXI.RenderTexture = function(width, height)
}
}
PIXI.RenderTexture.constructor = PIXI.RenderTexture;
PIXI.RenderTexture.prototype = Object.create( PIXI.Texture.prototype );
PIXI.RenderTexture.prototype.constructor = PIXI.RenderTexture;
/**
* Initializes the webgl data for this texture
*
* @method initWebGL
* @private
*/
PIXI.RenderTexture.prototype.initWebGL = function()
{
var gl = PIXI.gl;
this.glFramebuffer = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, this.glFramebuffer );
this.glFramebuffer.width = this.width;
this.glFramebuffer.height = this.height;
this.baseTexture = new PIXI.BaseTexture();
this.baseTexture.width = this.width;
@ -219,120 +249,175 @@ PIXI.RenderTexture.prototype.initWebGL = function()
this.baseTexture._glTexture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, this.baseTexture._glTexture);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, this.width, this.height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
this.baseTexture.isRender = true;
gl.bindFramebuffer(gl.FRAMEBUFFER, this.glFramebuffer );
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, this.baseTexture._glTexture, 0);
&#x2F;&#x2F; create a projection matrix..
this.projection = new PIXI.Point(this.width&#x2F;2 , this.height&#x2F;2);
this.projectionMatrix = PIXI.mat4.create();
this.projectionMatrix[5] = 2&#x2F;this.height&#x2F;&#x2F; * 0.5;
this.projectionMatrix[13] = -1;
this.projectionMatrix[0] = 2&#x2F;this.width;
this.projectionMatrix[12] = -1;
&#x2F;&#x2F; set the correct render function..
// create a projection matrix..
this.projection = new PIXI.Point(this.width/2 , -this.height/2);
// set the correct render function..
this.render = this.renderWebGL;
}
PIXI.RenderTexture.prototype.resize = function(width, height)
{
this.width = width;
this.height = height;
if(PIXI.gl)
{
this.projection.x = this.width/2
this.projection.y = -this.height/2;
var gl = PIXI.gl;
gl.bindTexture(gl.TEXTURE_2D, this.baseTexture._glTexture);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, this.width, this.height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
}
else
{
this.frame.width = this.width
this.frame.height = this.height;
this.renderer.resize(this.width, this.height);
}
}
/**
* Initializes the canvas data for this texture
*
* @method initCanvas
* @private
*/
PIXI.RenderTexture.prototype.initCanvas = function()
{
this.renderer = new PIXI.CanvasRenderer(this.width, this.height, null, 0);
this.baseTexture = new PIXI.BaseTexture(this.renderer.view);
this.frame = new PIXI.Rectangle(0, 0, this.width, this.height);
this.render = this.renderCanvas;
}
&#x2F;**
/**
* This function will draw the display object to the texture.
* @method render
* @param displayObject {DisplayObject}
*
* @method renderWebGL
* @param displayObject {DisplayObject} The display object to render this texture on
* @param clear {Boolean} If true the texture will be cleared before the displayObject is drawn
*&#x2F;
PIXI.RenderTexture.prototype.renderWebGL = function(displayObject, clear)
* @private
*/
PIXI.RenderTexture.prototype.renderWebGL = function(displayObject, position, clear)
{
var gl = PIXI.gl;
&#x2F;&#x2F; enable the alpha color mask..
// enable the alpha color mask..
gl.colorMask(true, true, true, true);
gl.viewport(0, 0, this.width, this.height);
gl.bindFramebuffer(gl.FRAMEBUFFER, this.glFramebuffer );
if(clear)
{
gl.clearColor(0,0,0, 0);
gl.clear(gl.COLOR_BUFFER_BIT);
}
&#x2F;&#x2F; THIS WILL MESS WITH HIT TESTING!
// THIS WILL MESS WITH HIT TESTING!
var children = displayObject.children;
&#x2F;&#x2F;TODO -? create a new one??? dont think so!
displayObject.worldTransform = PIXI.mat3.create();&#x2F;&#x2F;sthis.indetityMatrix;
&#x2F;&#x2F; modify to flip...
//TODO -? create a new one??? dont think so!
var originalWorldTransform = displayObject.worldTransform;
displayObject.worldTransform = PIXI.mat3.create();//sthis.indetityMatrix;
// modify to flip...
displayObject.worldTransform[4] = -1;
displayObject.worldTransform[5] = this.projection.y * 2;
displayObject.worldTransform[5] = this.projection.y * -2;
if(position)
{
displayObject.worldTransform[2] = position.x;
displayObject.worldTransform[5] -= position.y;
}
PIXI.visibleCount++;
displayObject.vcount = PIXI.visibleCount;
for(var i=0,j=children.length; i&lt;j; i++)
{
children[i].updateTransform();
}
var renderGroup = displayObject.__renderGroup;
if(renderGroup)
{
if(displayObject == renderGroup.root)
{
renderGroup.render(this.projection);
renderGroup.render(this.projection, this.glFramebuffer);
}
else
{
renderGroup.renderSpecific(displayObject, this.projection);
renderGroup.renderSpecific(displayObject, this.projection, this.glFramebuffer);
}
}
else
{
if(!this.renderGroup)this.renderGroup = new PIXI.WebGLRenderGroup(gl);
this.renderGroup.setRenderable(displayObject);
this.renderGroup.render(this.projection);
this.renderGroup.render(this.projection, this.glFramebuffer);
}
displayObject.worldTransform = originalWorldTransform;
}
PIXI.RenderTexture.prototype.renderCanvas = function(displayObject, clear)
/**
* This function will draw the display object to the texture.
*
* @method renderCanvas
* @param displayObject {DisplayObject} The display object to render this texture on
* @param clear {Boolean} If true the texture will be cleared before the displayObject is drawn
* @private
*/
PIXI.RenderTexture.prototype.renderCanvas = function(displayObject, position, clear)
{
var children = displayObject.children;
displayObject.worldTransform = PIXI.mat3.create();
if(position)
{
displayObject.worldTransform[2] = position.x;
displayObject.worldTransform[5] = position.y;
}
for(var i=0,j=children.length; i&lt;j; i++)
{
children[i].updateTransform();
}
if(clear)this.renderer.context.clearRect(0,0, this.width, this.height);
this.renderer.renderDisplayObject(displayObject);
PIXI.texturesToUpdate.push(this.baseTexture);
}
this.renderer.context.setTransform(1,0,0,1,0,0);
// PIXI.texturesToUpdate.push(this.baseTexture);
}
</pre>
</div>
@ -343,13 +428,13 @@ PIXI.RenderTexture.prototype.renderCanvas = function(displayObject, clear)
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