/usr/share/oolite/Shaders/oolite-default-planet.vertex is in oolite-data 1.77.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | /*
oolite-default-planet.vertex
Default vertex shader for Oolite's NEW_PLANETS
© 2009–2013 Jens Ayton
This program 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 2
of the License, or (at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
*/
// No vNormal, because normal is always 0,0,1 in tangent space.
varying vec3 vEyeVector;
varying vec2 vTexCoords;
varying vec3 vLight1Vector;
varying vec3 vCoords;
void main(void)
{
vCoords = gl_Vertex.xyz;
// Build tangent basis.
vec3 normal = normalize(gl_NormalMatrix * gl_Normal);
vec3 binormal = cross(normal, gl_NormalMatrix * vec3(0, 1, 0));
vec3 tangent = -cross(normal, binormal);
mat3 TBN = mat3(tangent, binormal, normal);
vec3 eyeVector = -vec3(gl_ModelViewMatrix * gl_Vertex);
vEyeVector = eyeVector * TBN;
vec3 light1Vector = gl_LightSource[1].position.xyz + eyeVector;
vLight1Vector = light1Vector * TBN;
vTexCoords = gl_MultiTexCoord0.st;
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}
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