/indra/newview/app_settings/shaders/class1/lighting/sumLightsSpecularV.glsl
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Possible License(s): LGPL-2.1
- /**
- * @file sumLightsSpecularV.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
- * $/LicenseInfo$
- */
-
- float calcDirectionalLightSpecular(inout vec4 specular, vec3 view, vec3 n, vec3 l, vec3 lightCol, float da);
- vec3 atmosAmbient(vec3 light);
- vec3 atmosAffectDirectionalLight(float lightIntensity);
- vec3 atmosGetDiffuseSunlightColor();
- vec3 scaleDownLight(vec3 light);
- uniform vec4 light_position[8];
- uniform vec3 light_diffuse[8];
- vec4 sumLightsSpecular(vec3 pos, vec3 norm, vec4 color, inout vec4 specularColor, vec4 baseCol)
- {
- vec4 col = vec4(0,0,0, color.a);
-
- vec3 view = normalize(pos);
-
- /// collect all the specular values from each calcXXXLightSpecular() function
- vec4 specularSum = vec4(0.0);
- col.rgb += light_diffuse[1].rgb * calcDirectionalLightSpecular(specularColor, view, norm, light_position[1].xyz,light_diffuse[1].rgb, 1.0);
- col.rgb = scaleDownLight(col.rgb);
- col.rgb += atmosAmbient(baseCol.rgb);
- col.rgb += atmosAffectDirectionalLight(calcDirectionalLightSpecular(specularSum, view, norm, light_position[0].xyz,atmosGetDiffuseSunlightColor()*baseCol.a, 1.0));
- col.rgb = min(col.rgb * color.rgb, 1.0);
- specularColor.rgb = min(specularColor.rgb * specularSum.rgb, 1.0);
- col.rgb += specularColor.rgb;
- return col;
- }