Full user review
"Not as good as previous versions"
Free. Powerful modeling. Decent rendering.
Buggy. Bad texture size limits. Takes longer to do things than previous versions did.
I've been using trueSpace for over a decade. I started with trueSpace 2 somewhere around the year 2000-2001. I've also used trueSpace 3.2 (the previous free version) and trueSpace 4. Sadly, trueSpace 7.6 is a poor successor to the previous versions I've used. If you factor in the fact that it's free and it has many of the functions of software that costs well over $1000, it is a good program. However, it is full of bugs.
Things like using multithreading (support for multiple processor cores) will crash the program pretty often when rendering single objects. I also get a lot of "fatal error" and even "out of memory" messages, even though I'm running this on Windows 7 64-bit with more than enough RAM. There is also a bad bug where (sometimes) gluing objects together or hitting "undo" will remove materials (textures, etc.) from the mesh you're working with. Also, aside from the bugs, it has a lot of other issues. Loading .cob meshes (trueSpace 6.6 and older format meshes) takes a lot longer than it does in previous versions. Gluing objects together takes much longer than it should, as does undoing things. The worst part about it is that it has a texture image size limit of 2000x2000 pixels. Anybody who knows 3D art knows that 2000x2000 isn't very high, especially when other programs can use 16000x16000 and higher. Previous versions of trueSpace could use 4000x4000, I have no idea why this was downgraded for version 7. This texture limit makes doing high quality and large renders very difficult, since high resolution rendering requires higher resolution textures.
The other bad thing about trueSpace is that it is no longer updated or developed. In 2008, Microsoft purchased Caligari and claimed they intended to keep developing trueSpace, though they cut the project shortly thereafter. So, the legacy that is left behind by Caligari is an extremely buggy release of previously solid software. It's actually quite sad for a longtime trueSpace user such as myself.
If you want to use trueSpace, you might want to try and see if you can find a free version of trueSpace 3.2 somewhere and use that for modeling and this version for texturing and rendering. It does decent for rendering, but the slowdowns and bugs while modeling can be a real pill.