When comparing Crystal Space 3D vs Blender, the Slant community recommends Blender for most people. In the question“What are the best 100% free and easy game engines for beginners?” Blender is ranked 10th while Crystal Space 3D is ranked 33rd. The most important reason people chose Blender is:
Blender is licensed under the GPL.
Ranked in these QuestionsQuestion Ranking
Pro Scripting language bindings (via swig) python, perl, tcl
Scripting language biddings are available via swig, supposedly any swig target could be used If you are okay with building, and probably maintaining, the project for your own needs then you may be able to build bindings for your favorite scripting platform.
As noted in a slant "con", there are no binary releases, including no prebuilt bindings.
Pro Cross platform
Runs on all major desktop platforms.
Pro Free and open source
Blender is licensed under the GPL.
Pro Python extensibility
Blender embeds Python 3, which can be used to write add-ons, tools, extend the interface, rig characters and automate tasks.
Pro Powerful animation suite
Blender provides a full rigging system, and automates animation by interpolating between keyframe positions.
Pro Wide import and export format support
Support lots of modern 3D formats including DAE and FBX - ideal for game developers.
Pro Regular release schedule
Releases are made every ~3 months.
Pro Has a good rendering engine
Blender runs the Cycles path tracing engine under the hood. Cycles is a very powerful rendering engine capable of full path tracing (light fall off, caustics, volumetrics). It is mostly compatible with OpenCL and CUDA rendering, and is implementing mycropolygon displacement features. The upcoming release has a viewport engine called EEVEE whereby you can see and interact with your work in render mode in real time!
Pro Supports both low-poly and hi-poly modeling
Pro Includes video editing & compositing tools
Blender's node-based compositor has comprehensive video sequencing and post-processing features.
Pro Keyboard shortcuts
Good keyboard shortcuts for everything. Keep your left hand on the keyboard and your right hand on the mouse.
Pro It has sculpting and 3D painting features
Although blenders 3d painting and sculpting tools (mostly painting) are not at par with specialized software like Substance painter, z brush, or mari; it is more than capable of getting most jobs done if the user takes the time to learn and understand it.
Pro Node based modeling support
Pro Very useful for a freelancer
It offers a round solution (it covers many areas and professional fields) for a freelancer, for free, constantly updated, very polished, and allowing high quality results that clients do require. After some learning, it becomes very useful for professional work.
Pro Coherent and streamlined workflow / internal use logic
The trick with Blender is to get used to its usage philosophy, as it keeps consistent through all the application. Once you get it, every feature or addition is learnt naturally, almost effortlessly.
Pro Has a large community
There's a huge community to help you get started immediately.
Con No binary releases.
Expect to compile this from source if your want to play with it.
Ubuntu has a package for it, but that package appears to be missing it's scripting language bindings. I expect the build is also quite old and i fear may be dropped in coming Ubuntu releases.
Con Difficult learning curve
Blender is not a very intuitive 3D modeling software. It has its own ways of doing things, and it is often hard to guess how to achieve simple tasks.
Con Too many possibilities, no unified workflow
The operations are not optimized enough for specific tasks.
Con Ugly interface
It has a not-so-good interface out-of-the-box. It's hard to see things on it.
Sure you can use custom themes, but themes that look good are not always up-to-date.
And building your own theme is confusing and time-consuming.
It's just my own opinion. If you have got a good theme, you can just ignore this.
Con Poor particle system
The Blender particle system can at times be a little limiting and finicky (and buggy) to get working. Even if it can get most straight forward jobs done, it is far from the most advanced system, and could benefit largely from advancements.