xrFrame_getPose.https.html

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This test has a WPT meta file that expects 4 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /webxr/xrFrame_getPose.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="resources/webxr_test_constants.js"></script>

<script src="resources/webxr_util.js"></script>

<script src="resources/webxr_test_asserts.js"></script>

<script>

let immersiveTestName = "XRFrame.getPose works for immersive sessions";

let nonImmersiveTestName = "XRFrame.getPose works for non-immersive sessions";

let fakeDeviceInitParams = TRACKED_IMMERSIVE_DEVICE;

let testFunction = function(session, fakeDeviceController, t) {

  return Promise.all([

    session.requestReferenceSpace('local'),

    session.requestReferenceSpace('local')

  ]).then((spaces) => new Promise((resolve) => {

    function onFrame(time, xrFrame) {

      const radians = Math.PI / 2.0; // 90 degrees

      // Both eye-level spaces start out with originOffset = identity matrix.

      let space1 = spaces[0];

      let space2 = spaces[1];

      let offset = new XRRigidTransform(

        DOMPointReadOnly.fromPoint({

          x: 2,

          y: 3,

          z: 4,

          w: 1,

        }));

      let translatedSpace1 = space1.getOffsetReferenceSpace(offset);

      let translated_from_base = xrFrame.getPose(translatedSpace1, space1);

      // Getting the transform of an offset space from the space it was based on

      // should be the same as the initially applied offset.

      t.step(() => {

        assert_matrix_approx_equals(translated_from_base.transform.matrix, offset.matrix, FLOAT_EPSILON);

});

      // Rotate 90 degrees about x axis, then move 1 meter along y axis.

      space1 = space1.getOffsetReferenceSpace(new XRRigidTransform(

        DOMPointReadOnly.fromPoint({

          x : 0,

          y : 1,

          z : 0,

          w : 1

}),

        DOMPointReadOnly.fromPoint({

          x : Math.sin(radians / 2),

          y : 0,

          z : 0,

          w : Math.cos(radians / 2)

})

));

      // Rotate 90 degrees about z axis, then move 1 meter along x axis.

      space2 = space2.getOffsetReferenceSpace(new XRRigidTransform(

        DOMPointReadOnly.fromPoint({

          x : 1,

          y : 0,

          z : 0,

          w : 1

}),

        DOMPointReadOnly.fromPoint({

          x : 0,

          y : 0,

          z : Math.sin(radians / 2),

          w : Math.cos(radians / 2)

})

));

      let space2_from_space1 = xrFrame.getPose(space1, space2);

      const EXPECTED_POSE_MATRIX = [

         0, -1, 0, 0, // 1st column

         0,  0, 1, 0, // 2nd column

        -1,  0, 0, 0, // 3rd column

         1,  1, 0, 1 // 4th column

];

      t.step(() => {

        assert_matrix_approx_equals(space2_from_space1.transform.matrix, EXPECTED_POSE_MATRIX, FLOAT_EPSILON);

});

      // Finished test.

      resolve();

    session.requestAnimationFrame(onFrame);

  }));

};

xr_session_promise_test(immersiveTestName, testFunction,

  fakeDeviceInitParams, 'immersive-vr');

xr_session_promise_test(nonImmersiveTestName, testFunction,

  fakeDeviceInitParams, 'inline', { 'requiredFeatures': ['local'] });

</script>