create-shader-program

Compiles, links and returns a shader program from a give vertex and fragment shader

To Install

$ npm install --save create-shader-program

Background / Initial Motivation

create-shader-program hopes to be a small convenience wrapper around shader program creation.

var createShaderProgram = require('create-shader-program')

Usage

var createShaderProgram = require('create-shader-program')
var canvas = document.createElement('canvas')
var gl = canvas.getContext('webgl')

var vertexShaderString = `
  precision mediump float;

  attribute vec2 position;
  attribute vec4   foobar    ;

  void main () {
    gl_Position = vec4(position, 0, 1);
  }
`

var fragmentShaderString = `
  precision mediump float;

  uniform vec4 color;

  void main () {
    gl_FragColor = color;
  }
`

var programObject = createShaderProgram(gl, vertexShaderString, fragmentShaderString)

if (programObject.err) {
  // A vertex shader, fragment shader, or shader program link error
  console.log(programObject.err.message)
} else {
  // Your compiled shader program
  console.log(programObject.program)
}

API

createShaderProgram(gl, vertexShaderString, fragmentShaderString) -> shaderProgram

gl

Required

Type: WebGL Context

Your shader program's WebGL context

vertexShaderString

Required

Type: function

Your GLSL vertex shader

var vertexShader = `
  precision mediump float;

  attribute vec2 position;
  attribute vec4   foobar    ;

  void main () {
    gl_Position = vec4(position, 0, 1);
  }
`

fragmentShaderString

Required

Type: object

Your GLSL fragment shader

var fragmentShader = `
  precision mediump float;

  uniform vec4 color;

  void main () {
    gl_FragColor = color;
  }
`

License

MIT