Libraries that interact with Blender also have to be compatible with the GPL and its four freedoms. The only limitation is that you can’t re-license the code or distribute it under a more restrictive license. Most importantly you can share all of this with others. You are free to keep Blender forever in as many PCs as you want, peek around the source code, change anything. All components are compatible with the GPL 3 though, which is the license used for the final executable files the Blender Foundation distributes. Most of the code is developed under the GPL2 license, while some modules have more permissive licenses. Free as in freedomįree as in freedom is the licensing part of the equation. The income comes from donations of users, sponsorship of companies and foundations, sales of DVDs/ USB Sticks, merch, manuals (in the old days when we read books and such), fundraising campaigns and subscriptions to the Blender Cloud. You can see this numbers at any time on the fund page. ![]() This lets the Blender Foundation employ 20 Developers to work on Blender full time. At the time of writing this the Blender Foundation is receiving roughly US$122,000 per month from ~5,000 individuals and 45 corporations. Let’s look at how this is possible but before we dive in, let’s see what free really means here.īlender is free in both meanings: free of charge ( as in beer) and free as in freedom.īeing gratis or Open Source doesn’t mean developing Blender doesn’t cost any money. It’s no wonder that in all these years there have been very few open source modelling suites besides Blender, and none of them seemed to grow beyond basic polygon modelling. ![]() We’re talking about one of the most math intensive problem domains in software.
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