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authorDave Parks <davep@lindenlab.com>2011-11-15 17:04:37 -0600
committerDave Parks <davep@lindenlab.com>2011-11-15 17:04:37 -0600
commitcfb666e9d9eb8945a79e2f7999459267caca36ee (patch)
treeb02e73c02f6f377c99fffc950d72525516647f52 /indra/newview/app_settings/shaders/class2/environment/waterFogF.glsl
parent09c74484ae0df267f01610ab4b594e50a01c05c1 (diff)
parentb493b8cca491c4b7a76f4c98b34272970d3bb58b (diff)
merge
Diffstat (limited to 'indra/newview/app_settings/shaders/class2/environment/waterFogF.glsl')
-rw-r--r--indra/newview/app_settings/shaders/class2/environment/waterFogF.glsl74
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diff --git a/indra/newview/app_settings/shaders/class2/environment/waterFogF.glsl b/indra/newview/app_settings/shaders/class2/environment/waterFogF.glsl
deleted file mode 100644
index 4bdfce9260..0000000000
--- a/indra/newview/app_settings/shaders/class2/environment/waterFogF.glsl
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@@ -1,74 +0,0 @@
-/**
- * @file waterFogF.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
- * $/LicenseInfo$
- */
-
-
-
-uniform vec4 lightnorm;
-uniform vec4 waterPlane;
-uniform vec4 waterFogColor;
-uniform float waterFogDensity;
-uniform float waterFogKS;
-
-vec3 getPositionEye();
-
-vec4 applyWaterFog(vec4 color)
-{
- //normalize view vector
- vec3 view = normalize(getPositionEye());
- float es = -(dot(view, waterPlane.xyz));
-
- //find intersection point with water plane and eye vector
-
- //get eye depth
- float e0 = max(-waterPlane.w, 0.0);
-
- vec3 int_v = waterPlane.w > 0.0 ? view * waterPlane.w/es : vec3(0.0, 0.0, 0.0);
-
- //get object depth
- float depth = length(getPositionEye() - int_v);
-
- //get "thickness" of water
- float l = max(depth, 0.1);
-
- float kd = waterFogDensity;
- float ks = waterFogKS;
- vec4 kc = waterFogColor;
-
- float F = 0.98;
-
- float t1 = -kd * pow(F, ks * e0);
- float t2 = kd + ks * es;
- float t3 = pow(F, t2*l) - 1.0;
-
- float L = min(t1/t2*t3, 1.0);
-
- float D = pow(0.98, l*kd);
-
- color.rgb = color.rgb * D + kc.rgb * L;
- color.a = kc.a + color.a;
-
- return color;
-}
-