diff --git a/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl b/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl
deleted file mode 100644
index c6ea3ec9d43a60a469cc0acf47c84ef5857539b9..0000000000000000000000000000000000000000
--- a/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl
+++ /dev/null
@@ -1,73 +0,0 @@
-/**
- * @file class3\wl\advancedAtmoF.glsl
- *
- * $LicenseInfo:firstyear=2005&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2005, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-#ifdef DEFINE_GL_FRAGCOLOR
-out vec4 frag_color;
-#else
-#define frag_color gl_FragColor
-#endif
-
-in vec3 view_dir;
-
-uniform vec3 cameraPosLocal;
-uniform vec3 sun_dir;
-uniform float sun_size;
-
-uniform sampler2D transmittance_texture;
-uniform sampler3D scattering_texture;
-uniform sampler3D mie_scattering_texture;
-uniform sampler2D irradiance_texture;
-
-vec3 GetSolarLuminance();
-vec3 GetSkyLuminance(vec3 camPos, vec3 view_dir, float shadow_length, vec3 sun_dir, out vec3 transmittance);
-vec3 GetSkyLuminanceToPoint(vec3 camPos, vec3 pos, float shadow_length, vec3 sun_dir, out vec3 transmittance);
-vec3 GetSunAndSkyIlluminance(vec3 pos, vec3 norm, vec3 sun_dir, out vec3 sky_irradiance);
-
-void main()
-{
- vec3 view_direction = normalize(view_dir);
-
- vec3 camPos = cameraPosLocal;
- vec3 transmittance;
- vec3 sky_illum;
- vec3 radiance = GetSkyLuminance(camPos, view_direction, 0.0f, sun_dir, transmittance);
- vec3 radiance2 = GetSunAndSkyIlluminance(camPos, view_direction, sun_dir, sky_illum);
-
- //radiance *= transmittance;
-
- // If the view ray intersects the Sun, add the Sun radiance.
- if (dot(view_direction, sun_dir) >= sun_size)
- {
- radiance = radiance + transmittance * GetSolarLuminance();
- }
-
- //vec3 color = vec3(1.0) - exp(-radiance);
- //color = pow(color, vec3(1.0 / 2.2));
-
- frag_color.rgb = radiance;
-
- frag_color.a = 1.0;
-}
-
diff --git a/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoV.glsl b/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoV.glsl
deleted file mode 100644
index 65bb00b1f6ea8166ffb524adaaa16ccf309b2b99..0000000000000000000000000000000000000000
--- a/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoV.glsl
+++ /dev/null
@@ -1,43 +0,0 @@
-/**
- * @file class3\wl\advancedAtmoV.glsl
- *
- * $LicenseInfo:firstyear=2005&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2005, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-uniform mat4 modelview_projection_matrix;
-
-ATTRIBUTE vec3 position;
-
-// Inputs
-uniform vec3 camPosLocal;
-
-out vec3 view_dir;
-
-void main()
-{
- // World / view / projection
- gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
-
- // this will be normalized in the frag shader...
- view_dir = position.xyz - camPosLocal.xyz;
-}
-
diff --git a/indra/newview/app_settings/shaders/class3/windlight/atmosphericsF.glsl b/indra/newview/app_settings/shaders/class3/windlight/atmosphericsF.glsl
deleted file mode 100644
index 2b70ba76dcf26dda524c5d50f16e791bd94114ec..0000000000000000000000000000000000000000
--- a/indra/newview/app_settings/shaders/class3/windlight/atmosphericsF.glsl
+++ /dev/null
@@ -1,46 +0,0 @@
-/**
- * @file class3\wl\atmosphericsF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2007, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-vec3 getAdditiveColor();
-vec3 getAtmosAttenuation();
-vec3 scaleSoftClipFrag(vec3 light);
-
-uniform int no_atmo;
-
-vec3 atmosFragLighting(vec3 light, vec3 additive, vec3 atten)
-{
- if (no_atmo == 1)
- {
- return light;
- }
- light *= atten.r;
- light += additive;
- return light * 2.0;
-}
-
-vec3 atmosLighting(vec3 light)
-{
- return atmosFragLighting(light, getAdditiveColor(), getAtmosAttenuation());
-}
diff --git a/indra/newview/app_settings/shaders/class3/windlight/atmosphericsV.glsl b/indra/newview/app_settings/shaders/class3/windlight/atmosphericsV.glsl
deleted file mode 100644
index b76192d73f63964b664ca847dc7b3e8f2d25fac0..0000000000000000000000000000000000000000
--- a/indra/newview/app_settings/shaders/class3/windlight/atmosphericsV.glsl
+++ /dev/null
@@ -1,51 +0,0 @@
-/**
- * @file class3\wl\atmosphericsV.glsl
- *
- * $LicenseInfo:firstyear=2005&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2005, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-// VARYING param funcs
-void setSunlitColor(vec3 v);
-void setAmblitColor(vec3 v);
-void setAdditiveColor(vec3 v);
-void setAtmosAttenuation(vec3 v);
-void setPositionEye(vec3 v);
-
-vec3 getAdditiveColor();
-
-void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten, bool use_ao);
-
-void calcAtmospherics(vec3 inPositionEye) {
-
- vec3 P = inPositionEye;
- setPositionEye(P);
- vec3 tmpsunlit = vec3(1);
- vec3 tmpamblit = vec3(1);
- vec3 tmpaddlit = vec3(1);
- vec3 tmpattenlit = vec3(1);
- calcAtmosphericVars(inPositionEye, vec3(0), 1, tmpsunlit, tmpamblit, tmpaddlit, tmpattenlit, true);
- setSunlitColor(tmpsunlit);
- setAmblitColor(tmpamblit);
- setAdditiveColor(tmpaddlit);
- setAtmosAttenuation(tmpattenlit);
-}
-
diff --git a/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl b/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl
deleted file mode 100644
index 545a32a227453028da553139c9d1f17a348a997b..0000000000000000000000000000000000000000
--- a/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl
+++ /dev/null
@@ -1,68 +0,0 @@
-/**
- * @file class3\wl\transportF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2007, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-//////////////////////////////////////////////////////////
-// The fragment shader for the terrain atmospherics
-//////////////////////////////////////////////////////////
-
-vec3 getAdditiveColor();
-vec3 getAtmosAttenuation();
-
-uniform int no_atmo;
-
-vec3 atmosTransportFrag(vec3 light, vec3 additive, vec3 atten)
-{
- if (no_atmo == 1)
- {
- return light;
- }
- // fullbright responds minimally to atmos scatter effects
- light *= min(15.0 * atten.r, 1.0);
- light += (0.1 * additive);
- return light * 2.0;
-}
-
-vec3 atmosTransport(vec3 light)
-{
- return atmosTransportFrag(light, getAdditiveColor(), getAtmosAttenuation());
-}
-
-vec3 fullbrightAtmosTransportFrag(vec3 light, vec3 additive, vec3 atten)
-{
- float brightness = dot(light.rgb, vec3(0.33333));
- return vec3(1,0,1);
- //return atmosTransportFrag(light * 0.5, additive * (brightness * 0.5 + 0.5), atten);
-}
-
-vec3 fullbrightAtmosTransport(vec3 light)
-{
- return atmosTransportFrag(light, getAdditiveColor(), getAtmosAttenuation());
-}
-
-vec3 fullbrightShinyAtmosTransport(vec3 light)
-{
- float brightness = dot(light.rgb, vec3(0.33333));
- return atmosTransportFrag(light * 0.5, getAdditiveColor() * (brightness * brightness), getAtmosAttenuation());
-}