GLSL source for shader 107:
// @Begin License@// This file is part of Coldest.
//
// Coldest is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Coldest 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Coldest.  If not, see <http://www.gnu.org/licenses/>.
//
// Copyright 2008, 2010 Ben Nemec
// @End License@
void basiclighting(inout vec3, in vec3, out vec4, out vec4, out vec4, in float);
void shadow(vec4, vec4, float, inout vec4);
void fog(float, inout vec4);

uniform sampler2D tex;
uniform float reflectval;

varying float dist;
varying vec3 normal;
varying vec3 worldcoords;

void main()
{
   // Reflection
   if (worldcoords.y < 0. && reflectval > .5) discard;
   
   // Texturing
   vec4 color;
   vec4 ambient, diffuse;
   vec3 localnorm = vec3(0., 0., 1.);
   
   // Always light as though we're pointed directly at the light
   basiclighting(localnorm, vec3(0., 0., -1.), color, ambient, diffuse, 1.);
   
   shadow(diffuse, vec4(0.), dist, color);
   
   color *= texture2D(tex, gl_TexCoord[0].st);
   
   fog(dist, color);
   
   gl_FragColor = color;
}