maskedTextureFragmentShader.glsl 730 B

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  1. /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
  2. /*
  3. * This file is part of the LibreOffice project.
  4. *
  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/.
  8. */
  9. #version 130
  10. /*precision mediump float;*/
  11. varying vec2 tex_coord;
  12. varying vec2 mask_coord;
  13. uniform sampler2D sampler;
  14. uniform sampler2D mask;
  15. void main()
  16. {
  17. vec4 texel0, texel1;
  18. texel0 = texture2D(sampler, tex_coord);
  19. texel1 = texture2D(mask, mask_coord);
  20. gl_FragColor = texel0;
  21. gl_FragColor.a = 1.0 - texel1.r;
  22. }
  23. /* vim:set shiftwidth=4 softtabstop=4 expandtab: */