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/**
* @file bumpF.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
* $/LicenseInfo$
*/
/*[EXTRA_CODE_HERE]*/
out vec4 frag_data[4];
uniform float minimum_alpha;
uniform sampler2D diffuseMap;
uniform sampler2D bumpMap;
in vec3 vary_mat0;
in vec3 vary_mat1;
in vec3 vary_mat2;
in vec4 vertex_color;
in vec2 vary_texcoord0;
vec2 encode_normal(vec3 n);
void main()
{
vec4 col = texture(diffuseMap, vary_texcoord0.xy);
if(col.a < minimum_alpha)
{
discard;
}
col *= vertex_color;
vec3 norm = texture(bumpMap, vary_texcoord0.xy).rgb * 2.0 - 1.0;
vec3 tnorm = vec3(dot(norm,vary_mat0),
dot(norm,vary_mat1),
dot(norm,vary_mat2));
frag_data[0] = vec4(col.rgb, 0.0);
frag_data[1] = vertex_color.aaaa; // spec
//frag_data[1] = vec4(vec3(vertex_color.a), vertex_color.a+(1.0-vertex_color.a)*vertex_color.a); // spec - from former class3 - maybe better, but not so well tested
vec3 nvn = normalize(tnorm);
frag_data[2] = vec4(encode_normal(nvn), vertex_color.a, GBUFFER_FLAG_HAS_ATMOS);
frag_data[3] = vec4(0);
}
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