glam/es5/tests/augments/fog-lit-test.js

'use strict';

var _tape = require('tape');

var _tape2 = _interopRequireDefault(_tape);

var _normals = require('normals');

var _normals2 = _interopRequireDefault(_normals);

var _readPixel = require('../read-pixel');

var _readPixel2 = _interopRequireDefault(_readPixel);

var _geo3dBox = require('geo-3d-box');

var _geo3dBox2 = _interopRequireDefault(_geo3dBox);

var _lib = require('../../lib');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

(0, _tape2.default)('Fog Lit Augmentation', function (t) {
  var scene = (0, _lib.Scene)({
    autoStart: false,
    renderer: (0, _lib.ForwardRenderer)({
      autoResizeCanvas: false,
      width: 100,
      height: 100
    })
  });

  var gl = scene.renderer.gl;
  var camera = (0, _lib.PerspectiveCamera)();
  var box = (0, _geo3dBox2.default)({ size: 5 });
  box.normals = _normals2.default.vertexNormals(box.cells, box.positions);
  var geometry = (0, _lib.Geometry)(box);
  var mesh;
  scene.add(camera);
  camera.position[2] = 20;

  t.test('the red box is affected by dark fog', function (t) {
    t.plan(3);

    var material = (0, _lib.FogAugment)((0, _lib.LitMaterial)({ color: [1, 0, 0] }), {
      near: 10,
      far: 30,
      color: [0, 0, 0]
    });
    mesh = (0, _lib.Mesh)(geometry, material);
    mesh.transform.euler[1] = Math.PI * 0.25;
    scene.add(mesh);
    scene.render(camera);

    t.deepLooseEqual((0, _readPixel2.default)(gl, 50, 50), [169, 0, 0], 'The center is mostly red');
    t.deepLooseEqual((0, _readPixel2.default)(gl, 35, 50), [139, 0, 0], 'The left is darker');
    t.deepLooseEqual((0, _readPixel2.default)(gl, 65, 50), [137, 0, 0], 'The right is darker');
  });

  t.test('the red box is affected by light fog', function (t) {
    t.plan(3);

    mesh.material.shading.fog.color = [1, 1, 1];
    scene.render(camera);

    t.deepLooseEqual((0, _readPixel2.default)(gl, 50, 50), [255, 86, 86], 'The center is mostly red');
    t.deepLooseEqual((0, _readPixel2.default)(gl, 35, 50), [255, 116, 116], 'The left is lighter');
    t.deepLooseEqual((0, _readPixel2.default)(gl, 65, 50), [255, 118, 118], 'The right is darker');

    scene.renderer.destroy();
  });
});