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+/**
+ * @file class1\environment\terrainV.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 mat3 normal_matrix;
+uniform mat4 texture_matrix0;
+uniform mat4 modelview_matrix;
+uniform mat4 modelview_projection_matrix;
+
+uniform vec4 object_plane_t;
+uniform vec4 object_plane_s;
+
+ATTRIBUTE vec3 position;
+ATTRIBUTE vec3 normal;
+ATTRIBUTE vec2 texcoord0;
+ATTRIBUTE vec2 texcoord1;
+ATTRIBUTE vec4 diffuse_color;
+
+VARYING vec4 vertex_color;
+VARYING vec4 vary_texcoord0;
+VARYING vec4 vary_texcoord1;
+
+void calcAtmospherics(vec3 inPositionEye);
+vec4 calcLighting(vec3 pos, vec3 norm, vec4 color);
+
+vec4 texgen_object(vec4 vpos, vec4 tc, mat4 mat, vec4 tp0, vec4 tp1)
+{
+ vec4 tcoord;
+
+ tcoord.x = dot(vpos, tp0);
+ tcoord.y = dot(vpos, tp1);
+ tcoord.z = tc.z;
+ tcoord.w = tc.w;
+
+ tcoord = mat * tcoord;
+
+ return tcoord;
+}
+
+void main()
+{
+ //transform vertex
+ gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
+
+ vec4 pos = modelview_matrix * vec4(position.xyz, 1.0);
+ vec3 norm = normalize(normal_matrix * normal);
+
+ calcAtmospherics(pos.xyz);
+
+ vec4 color = calcLighting(pos.xyz, norm, vec4(1.0));
+
+ vertex_color.rgb = color.rgb;
+
+ // Transform and pass tex coords
+ vary_texcoord0.xy = texgen_object(vec4(position.xyz, 1.0), vec4(texcoord0,0,1), texture_matrix0, object_plane_s, object_plane_t).xy;
+
+ vec4 t = vec4(texcoord1,0,1);
+
+ vary_texcoord0.zw = t.xy;
+ vary_texcoord1.xy = t.xy-vec2(2.0, 0.0);
+ vary_texcoord1.zw = t.xy-vec2(1.0, 0.0);
+}
+