1 files changed, 32 insertions, 0 deletions
diff --git a/res/effectlib/fresnelLayer.glsllib b/res/effectlib/fresnelLayer.glsllib
index 69a4786..a9b4087 100644
--- a/res/effectlib/fresnelLayer.glsllib
+++ b/res/effectlib/fresnelLayer.glsllib
@@ -1,3 +1,34 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 NVIDIA Corporation.
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
 float simpleFresnel( in vec3 N, in float ior, float fresnelPower )
 {
     float F = ((1.0-ior) * (1.0-ior)) / ((1.0+ior) * (1.0+ior));
@@ -75,3 +106,4 @@ vec4 fresnelLayer( in vec3 N, in vec3 ior, in float weight, in vec3 layercolor,
 
   return( vec4( mix( base.rgb, layer.rgb, fresColor ), mix(alpha, 1.0, luminance(fresColor)) ) );
 }
+