A quick question about Freedoom and DOOM

[TheNooBringeR]

Would it be ok for someone to make wad which uses textures from Freedoom and Sprites from DOOM II?

[d1337r]

Freedoom is released under a permissive license, so the only requirement you have to follow when releasing your WADs is to credit the Freedoom team.

Technically, you can extract the necessary patches from freedoom's wad file and just include them into your wad.

Or you can use the freedoom_textures.wad from http://free.doomers.org/ . It only contains patches and texture definitions, so you could use it along with any other WAD to have Freedoom textures.

[fraggle]

It's okay to reuse Freedoom material in your own WADs, and there's no kind of restriction about them "only being able to run under Freedoom" or anything like that. As a simple example, KDIZD used some material from Freedoom.

To do it properly, include this text in your text file:

This file includes material from the Freedoom project.

Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Contributors to the Freedoom project.  All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

  * Redistributions of source code must retain the above copyright 
    notice, this list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright 
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
  * Neither the name of the freedoom project nor the names of its 
    contributors may be used to endorse or promote products derived from
    this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

[Memfis]

fraggle said:

Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

This looks funny, why not just write 2001-2010 I wonder?

[andrewj]

Memfis said:

This looks funny, why not just write 2001-2010 I wonder?

The GNU people suggest listing each year individually.

I think it's being pedantic ad absurdum.