/usr/share/gem/examples/10.glsl/geo.frag is in gem-doc 1:0.93.3-13.
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 | void main()
{
vec4 tmp = gl_Color;
tmp.a /= 10.;
gl_FragColor = tmp;
// set color but alpha is 20 time less
}
|