/usr/share/octave/packages/vrml-1.0.13/vrml_material.m is in octave-vrml 1.0.13-2.
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 51 52 53 54 55 56 57 58 59 60 61 | ## Copyright (C) 2002 Etienne Grossmann <etienne@egdn.net>
##
## 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 3 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, see <http://www.gnu.org/licenses/>.
## s = vrml_material (dc,ec,tr) - Returns a "material" vrml node
##
## dc : 3x1 : diffuseColor
## ec : 3x1 : emissiveColor
## or 1x1 : use dc as emissiveColor if ec is true. Default = 0
## tr : 1x1 : transparency Default = 0
function s = vrml_material (dc, ec, tran,DEF)
if nargin < 1, dc = [0.3 0.4 0.9] ; # Default color
elseif prod (size (dc)) != 3,
error ("dc should have length 3 (it is %i x %i)",size (dc));
end
emit = 1;
if nargin < 2, ec = 0; end
if nargin < 3, tran = 0; end
if nargin < 4, DEF = ""; end
if prod (size (ec)) == 1 && !isnan (ec) , emit = ec ; ec = dc ; end
if isnan (tran)
tran = 0;
end
if emit && !isnan (ec)
se = sprintf (" emissiveColor %8.3g %8.3g %8.3g\n",ec);
else
se = "";
end
if ! isnan (tran) && tran
st = sprintf (" transparency %8.3g\n",tran);
else
st = "";
end
if isempty (DEF), sd = "";
else sd = ["DEF ",DEF];
end
s = sprintf ([" material ",sd," Material {\n",\
se,st,\
" diffuseColor %8.3g %8.3g %8.3g \n",\
" }\n"],\
dc);
endfunction
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