1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
3 * This file is part of the LibreOffice project.
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
12 uniform sampler2D slideTexture;
13 varying vec2 v_texturePosition;
14 varying vec3 v_normal;
17 vec3 lightVector = vec3(0.0, 0.0, 1.0);
18 float light = max(dot(lightVector, v_normal), 0.0);
19 vec4 fragment = texture2D(slideTexture, v_texturePosition);
20 vec4 black = vec4(0.0, 0.0, 0.0, fragment.a);
21 gl_FragColor = mix(black, fragment, light);
24 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */