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<title>src/pixi/renderers/webgl/WebGLShaders.js - Pixi.JS</title>
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<h1 class="file-heading">File: src/pixi/renderers/webgl/WebGLShaders.js</h1>
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<pre class="code prettyprint linenums">
/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
PIXI.shaderFragmentSrc = [
"precision mediump float;",
"varying vec2 vTextureCoord;",
"varying float vColor;",
"uniform sampler2D uSampler;",
"void main(void) {",
"gl_FragColor = texture2D(uSampler, vec2(vTextureCoord.x, vTextureCoord.y));",
"gl_FragColor = gl_FragColor * vColor;",
"}"
];
PIXI.shaderVertexSrc = [
"attribute vec2 aVertexPosition;",
"attribute vec2 aTextureCoord;",
"attribute float aColor;",
"uniform mat4 uMVMatrix;",
"varying vec2 vTextureCoord;",
"varying float vColor;",
"void main(void) {",
"gl_Position = uMVMatrix * vec4(aVertexPosition, 1.0, 1.0);",
"vTextureCoord = aTextureCoord;",
"vColor = aColor;",
"}"
];
/*
* primitive shader..
*/
PIXI.CompileVertexShader = function(gl, shaderSrc)
{
return PIXI._CompileShader(gl, shaderSrc, gl.VERTEX_SHADER);
}
PIXI.CompileFragmentShader = function(gl, shaderSrc)
{
return PIXI._CompileShader(gl, shaderSrc, gl.FRAGMENT_SHADER);
}
PIXI._CompileShader = function(gl, shaderSrc, shaderType)
{
var src = shaderSrc.join("\n");
var shader = gl.createShader(shaderType);
gl.shaderSource(shader, src);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
alert(gl.getShaderInfoLog(shader));
return null;
}
return shader;
}
PIXI.activateDefaultShader = function()
{
var gl = PIXI.gl;
var shaderProgram = PIXI.shaderProgram;
gl.useProgram(shaderProgram);
gl.enableVertexAttribArray(shaderProgram.vertexPositionAttribute);
gl.enableVertexAttribArray(shaderProgram.textureCoordAttribute);
gl.enableVertexAttribArray(shaderProgram.colorAttribute);
}
PIXI.activatePrimitiveShader = function()
{
var gl = PIXI.gl;
gl.disableVertexAttribArray(PIXI.shaderProgram.textureCoordAttribute);
gl.disableVertexAttribArray(PIXI.shaderProgram.colorAttribute);
var shaderProgram2 = PIXI.shaderProgram2;
gl.useProgram(shaderProgram2);
gl.enableVertexAttribArray(shaderProgram2.vertexPositionAttribute);
gl.enableVertexAttribArray(PIXI.shaderProgram2.colorAttribute);
}
</pre>
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