| // Copyright 2017 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. |
| |
| #ifndef CHROME_BROWSER_VR_POSE_UTIL_H_ |
| #define CHROME_BROWSER_VR_POSE_UTIL_H_ |
| |
| #include "chrome/browser/vr/vr_base_export.h" |
| #include "ui/gfx/geometry/vector3d_f.h" |
| |
| namespace gfx { |
| class Transform; |
| } |
| |
| namespace vr { |
| |
| // Provides the direction the head is looking towards as a 3x1 unit vector. |
| VR_BASE_EXPORT gfx::Vector3dF GetForwardVector(const gfx::Transform& head_pose); |
| |
| // Returns a vector heading upward from the viewer's head. |
| VR_BASE_EXPORT gfx::Vector3dF GetUpVector(const gfx::Transform& head_pose); |
| |
| } // namespace vr |
| |
| #endif // CHROME_BROWSER_VR_POSE_UTIL_H_ |
