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/indra/newview/app_settings/shaders/class1/windlight/atmosphericsHelpersV.glsl

https://bitbucket.org/lindenlab/viewer-beta/
Unknown | 55 lines | 48 code | 7 blank | 0 comment | 0 complexity | 73cbfeb118af3adfe0708a9f02bd0279 MD5 | raw file
Possible License(s): LGPL-2.1
  1. /**
  2. * @file atmosphericsHelpersV.glsl
  3. *
  4. * $LicenseInfo:firstyear=2005&license=viewerlgpl$
  5. * Second Life Viewer Source Code
  6. * Copyright (C) 2005, Linden Research, Inc.
  7. *
  8. * This library is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU Lesser General Public
  10. * License as published by the Free Software Foundation;
  11. * version 2.1 of the License only.
  12. *
  13. * This library is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16. * Lesser General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU Lesser General Public
  19. * License along with this library; if not, write to the Free Software
  20. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21. *
  22. * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
  23. * $/LicenseInfo$
  24. */
  25. uniform vec4 sunlight_color_copy;
  26. uniform vec4 light_ambient;
  27. vec3 atmosAmbient(vec3 light)
  28. {
  29. return light + light_ambient.rgb;
  30. }
  31. vec3 atmosAffectDirectionalLight(float lightIntensity)
  32. {
  33. return sunlight_color_copy.rgb * lightIntensity;
  34. }
  35. vec3 atmosGetDiffuseSunlightColor()
  36. {
  37. return sunlight_color_copy.rgb;
  38. }
  39. vec3 scaleDownLight(vec3 light)
  40. {
  41. /* stub function for fallback compatibility on class1 hardware */
  42. return light;
  43. }
  44. vec3 scaleUpLight(vec3 light)
  45. {
  46. /* stub function for fallback compatibility on class1 hardware */
  47. return light;
  48. }