/usr/src/castle-game-engine-4.1.1/x3d/opengl/glsl/variance_shadow_map_generate.fs.inc is in castle-game-engine-src 4.1.1-1.
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 | { -*- buffer-read-only: t -*- }
{ DON'T EDIT -- this file was automatically generated from "variance_shadow_map_generate.fs" }
'#ifdef ALPHA_TEST' + LineEnding +
'uniform sampler2D tex;' + LineEnding +
'#endif' + LineEnding +
'' + LineEnding +
'void main(void)' + LineEnding +
'{' + LineEnding +
'' + LineEnding +
'#ifdef ALPHA_TEST' + LineEnding +
' /* work with alpha test textures.' + LineEnding +
' For now we ssume the texture is only in 0th channel. */' + LineEnding +
' if (texture2D(tex, gl_TexCoord[0].st).a < 0.5)' + LineEnding +
' discard;' + LineEnding +
'#endif' + LineEnding +
'' + LineEnding +
' /* No need to divide gl_FragCoord.z by gl_FragCoord.w,' + LineEnding +
' as far as I understand GLSL spec. */' + LineEnding +
' gl_FragColor = vec4(gl_FragCoord.z, gl_FragCoord.z * gl_FragCoord.z, 0.0, 1.0);' + LineEnding +
'}' + LineEnding +
''
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