/usr/share/glmark2/shaders/light-basic-texgen.vert is in glmark2-data 2014.03+git20150611.fa71af2d-0ubuntu4.
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 | attribute vec3 position;
attribute vec3 normal;
uniform mat4 ModelViewProjectionMatrix;
uniform mat4 NormalMatrix;
uniform vec3 CenterPoint;
varying vec4 Color;
varying vec2 TextureCoord;
void main(void)
{
// Transform the normal to eye coordinates
vec3 N = normalize(vec3(NormalMatrix * vec4(normal, 1.0)));
// The LightSourcePosition is actually its direction for directional light
vec3 L = normalize(LightSourcePosition.xyz);
// Multiply the diffuse value by the vertex color (which is fixed in this case)
// to get the actual color that we will use to draw this vertex with
float diffuse = max(dot(N, L), 0.0);
Color = vec4(diffuse * MaterialDiffuse.rgb, MaterialDiffuse.a);
// Compute the texture coordinate and as a varying
vec3 vnorm = normalize(position - CenterPoint);
TextureCoord = asin(vnorm.xy) / PI + 0.5;
// Transform the position to clip coordinates
gl_Position = ModelViewProjectionMatrix * vec4(position, 1.0);
}
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