5 ms·

UE4 is free to use, with a 5% royalty on gross product revenue after the first $3,000 per game per calendar quarter from commercial products. It's not exactly

by joesb 10y ago

UE4 is free to use, with a 5% royalty on gross product revenue after the first $3,000 per game per calendar quarter from commercial products. It's not exactly the usual definition of open source.

philipov 10y ago
It is the usual definition of open source: you can download, modify, and compile the source for the entire engine. It's not free software, which is different from being open source. A common misunderstanding does not a definition justify.
- dispose13432 10y ago
  It's not. See https://opensource.org/osd https://opensource.org/osd (which is Open Source, not Free Software): 1. Free Redistribution The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale. 2. Source Code The program must include source code, and must allow distribution in source code as well as compiled form. Where some form of a product is not distributed with source code, there must be a well-publicized means of obtaining the source code for no more than a reasonable reproduction cost, preferably downloading via the Internet without charge. The source code must be the preferred form in which a programmer would modify the program. Deliberately obfuscated source code is not allowed. Intermediate forms such as the output of a preprocessor or translator are not allowed. 3. Derived Works The license must allow modifications and derived works, and must allow them to be distributed under the same terms as the license of the original software.
- mindcrime 10y ago
  It is the usual definition of open source: you can download, modify, and compile the source for the entire engine. That doesn't make something "open source". That's closer to "Shared source" if you don't also have the right to modify and redistribute the code. The UnrealEngine 4 license is definitely not open source by any commonly used definition of "open source" and absolutely isn't using the OSD.

by joesb 10y ago

UE4 is free to use, with a 5% royalty on gross product revenue after the first $3,000 per game per calendar quarter from commercial products. It's not exactly the usual definition of open source.

philipov 10y ago

It is the usual definition of open source: you can download, modify, and compile the source for the entire engine. It's not free software, which is different from being open source. A common misunderstanding does not a definition justify.

dispose13432 10y ago
It's not. See https://opensource.org/osd https://opensource.org/osd (which is Open Source, not Free Software): 1. Free Redistribution The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale. 2. Source Code The program must include source code, and must allow distribution in source code as well as compiled form. Where some form of a product is not distributed with source code, there must be a well-publicized means of obtaining the source code for no more than a reasonable reproduction cost, preferably downloading via the Internet without charge. The source code must be the preferred form in which a programmer would modify the program. Deliberately obfuscated source code is not allowed. Intermediate forms such as the output of a preprocessor or translator are not allowed. 3. Derived Works The license must allow modifications and derived works, and must allow them to be distributed under the same terms as the license of the original software.
mindcrime 10y ago
It is the usual definition of open source: you can download, modify, and compile the source for the entire engine. That doesn't make something "open source". That's closer to "Shared source" if you don't also have the right to modify and redistribute the code. The UnrealEngine 4 license is definitely not open source by any commonly used definition of "open source" and absolutely isn't using the OSD.