38: Writing Shaders with Pixel Bender in Java

Printer ean13 in Java 38: Writing Shaders with Pixel Bender
38: Writing Shaders with Pixel Bender
EAN13 creator with java
generate, create ean-13 supplement 2 none for java projects
The second shader is even more data-centric. You can use Pixel Bender s parallelism to process large sets of independent data, so in this case you use it to calculate the new position and velocity of a huge set of independent particles. In this shader, you pass in data as a Vector.<Number> as discussed in the section Preparing data for Pixel Bender. Each sample encodes a single point mass. You use four channels to store the particle s x and y position, and the x and y components of its velocity vector. Then you feed this Vector into the shader as a n 1 image, where n is the number of particles. The shader s code is trivial, if you know the basic equations of motion: dv = a dt dp = v dt You simply unpack the particle s position and velocity, and update them. You nd the force to apply by sampling the force eld at the particle s position. To simplify matters, you assume a unit mass and a unit time step.
Java barcode maker with java
using java toinclude barcode for asp.net web,windows application
<languageVersion : 1.0;> kernel GravitySimStep < namespace : "com.actionscriptbible"; vendor : "ActionScript 3.0 Bible"; version : 1; description : "Gravity simulation step"; > { parameter float2 scale <defaultValue: float2(1.0, 1.0);>; input image3 forcemap; input image4 inpoints; output pixel4 outpoint; void evaluatePixel() { //each input pixel represents a point mass (particle) with mass=1 //inpoint.XY = <x, y> position //inpoint.ZW = <x, y> velocity float4 particle = sampleNearest(inpoints, outCoord()); //the forcemap at a pixel stores the force vector at that point //forcemap[x, y].RG = <x, y> force vector (normalized... 0.5 = 0) float2 force = sampleNearest(forcemap, particle.xy).rg; force = (force - float2(0.5)) * scale; float2 velocity = particle.zw + force; float2 position = particle.xy + velocity; outpoint.xy = position; outpoint.zw = velocity; } }
Barcode recognizer on java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
The shader runs one step of the simulation, so at the end, you set the output pixel with the particle s updated position and velocity. In the ActionScript 3.0 code, you ll run this shader on a large set of particles, once per frame update. Finally, put these two shaders together in Example 38-3.
Control upc - 13 image for .net c#
generate, create ean 13 none with visual c# projects
Part VIII: Graphics Programming and Animation
Control upc - 13 image in .net
use asp.net web european article number 13 generating toinsert ean-13 on .net
EXAMPLE 38-3
.NET Crystal ean13+2 creation for .net
use visual .net crystal ean13+5 encoder toincoporate ean13+2 with .net
http://actionscriptbible.com/ch38/ex3
European Article Number 13 barcode library on vb.net
use .net framework ean13+2 integrated toaccess ean13+2 in vb.net
Using ShaderJob on a Data Set
Control barcode 39 image with java
generate, create 39 barcode none in java projects
package { import flash.display.*; import flash.events.*; import flash.geom.*; import flash.net.*; public class ch38ex3 extends Sprite { protected const URL_BASE:String = "http://actionscriptbible.com/files/"; protected const INITIAL_PARTICLES:int = 1000; protected const WELL_GRAVITY_MAX:Number = 5000; protected var W:int, H:int; protected protected protected protected var var var var generatorShader:Shader; stepShader:Shader; forcemap:BitmapData; particleData:Vector.<Number>; //4 channels: px,py,vx,vy
Control data matrix image with java
use java data matrix barcodes generator toincoporate data matrix ecc200 in java
protected var bmp:BitmapData; protected var bitmap:Bitmap; protected const DIM:ColorTransform = new ColorTransform(.9, .9, .9, .95); public function ch38ex3() { stage.frameRate = 60; loadShader("GravitySimGenerateMap.pbj", onGeneratorShaderReady); } protected function loadShader(url:String, onComplete:Function):void { var loader:URLLoader = new URLLoader(new URLRequest(URL_BASE + url)); loader.dataFormat = URLLoaderDataFormat.BINARY; loader.addEventListener(Event.COMPLETE, onComplete); } protected function onGeneratorShaderReady(event:Event):void { event.target.removeEventListener(Event.COMPLETE, onGeneratorShaderReady); generatorShader = new Shader(URLLoader(event.target).data); forcemap = new BitmapData(stage.stageWidth, stage.stageHeight, false, 0); W = forcemap.width; H = forcemap.height; var forceBitmap:Bitmap = new Bitmap(forcemap); addChild(forceBitmap); bmp = new BitmapData(W, H, false, 0); bitmap = new Bitmap(bmp); addChild(bitmap); bitmap.alpha = .99; initializeParticles(); initializeWells(); loadShader("GravitySimStep.pbj", onStepReady); } protected function onStepReady(event:Event):void { event.target.removeEventListener(Event.COMPLETE, onGeneratorShaderReady); stepShader = new Shader(URLLoader(event.target).data);
Control qr image on java
generate, create qr none on java projects
38: Writing Shaders with Pixel Bender
Add upc code in java
using java todraw gs1 - 12 for asp.net web,windows application
stage.addEventListener(MouseEvent.CLICK, function(event:Event):void{initializeParticles()}); stage.addEventListener(KeyboardEvent.KEY_UP, function(event:Event):void{initializeWells()}); addEventListener(Event.ENTER_FRAME, onEnterFrame); } protected function initializeParticles():void { var r:Function = Math.random; particleData = new Vector.<Number>(); for (var i:int = 0; i < INITIAL_PARTICLES; i++) { particleData.push(r()*W, r()*H, (r()-0.5)*4, (r()-0.5)*4); } } protected function initializeWells():void { var r:Function = Math.random; var data:ShaderData = generatorShader.data; data.power.value = [1.4]; data.star0.value = [r()*W/2 + W/4, r()*H/2 + H/4, r()*WELL_GRAVITY_MAX]; data.star1.value = [r()*W/2 + W/4, r()*H/2 + H/4, r()*WELL_GRAVITY_MAX]; var shaderJob:ShaderJob = new ShaderJob(generatorShader, forcemap); shaderJob.start(true); } protected function step():void { var data:ShaderData = stepShader.data; data.forcemap.input = forcemap; data.inpoints.input = particleData; data.inpoints.height = 1; data.inpoints.width = particleData.length/4; var shaderJob:ShaderJob = new ShaderJob(stepShader, particleData, particleData.length/4, 1); shaderJob.start(true); } protected function draw():void { bmp.colorTransform(bmp.rect, DIM); bmp.lock(); for (var i:int = 0; i < particleData.length; i+=4) { bmp.setPixel(particleData[i], particleData[i+1], 0xffffff); } bmp.unlock(); } protected function onEnterFrame(event:Event):void { step(); draw(); } } }
Control pdf417 2d barcode data for java
to get pdf417 and pdf417 2d barcode data, size, image with java barcode sdk
The two bolded sections in the example show how parameters and data are submitted to two different ShaderJobs. In the stepShader, two inputs are used. One, forcemap, is a BitmapData object, while the other, particleData, is a Vector.<Number>. Note that when you submit a Vector,
Generate planet with java
generate, create planet none in java projects
Control qr code jis x 0510 data with excel
qr code data on excel spreadsheets
2D Barcode barcode library for .net
use vs .net matrix barcode implementation toget 2d matrix barcode for .net
Control code 128 code set c size in .net c#
to attach code 128b and code-128c data, size, image with visual c# barcode sdk