// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// http://mozvr.github.io/webvr-spec/webvr.html#vrstageparameters
[
    RuntimeEnabled=WebVR
] interface VRStageParameters {
  // A 16 element array containing the components of a 4x4 transform
  // matrix.  This matrix transforms the sitting space position
  // returned by get{Immediate}Pose() to a standing space position.
  readonly attribute Float32Array sittingToStandingTransform;

  // Dimensions of the play area bounds. The bounds are defined
  // as an axis aligned rectangle on the floor.
  // The center of the rectangle is at (0,0,0) in standing space
  // coordinates.
  // These bounds are defined for safety purposes.
  // Content should not require the user to move beyond these
  // bounds; however, it is possible for the user to ignore
  // the bounds resulting in position values outside of
  // this rectangle.
  readonly attribute float sizeX;
  readonly attribute float sizeZ;
};