pex-context command

command.js

const createContext = require('pex-context')
const ctx = createContext({ width: 1280, height: 720})

const drawCmd = {
  pass: ctx.pass({
    clearColor: [0.5, 0.5, 0.5, 1],
    clearDepth: 1
  }),
  pipeline: ctx.pipeline({
    vert: vertSrc,
    frag: fragSrc,
    depthEnabled: true
  }),
  attributes: {
    aPosition: ctx.vertexBuffer(cube.positions),
    aTexCoord: ctx.vertexBuffer(cube.uvs)
  },
  indices: ctx.indexBuffer(cube.cells),
  uniforms: {
    uProjectionMatrix: camera.projectionMatrix,
    uViewMatrix: camera.viewMatrix,
    uModelMatrix: mat4.create(),
    uTexture: ctx.texture2D(img)
  }
}

ctx.submit(cmd)