Rocky Bennett, blender is a 3d modelling, grpahics, animation and rendering program (pls it has some functions which let you do rgeen screen like compositing of real video mixing with computer generated stuff). It's free and open source. I have been using it since about 2012 in combination with sketchup*, it is, in my opinion, a truly brilliant piece of software. You can get some extraordinary results using it (animations of almost blockbuster movie quality once you have a lot of skill with it and still images good enough to, in some cases, be indistinguishable from photographs)It takes ages to learn though and for those used to other 3d packages the interface might seem strangely different (In the same way that some people who've used photoshop may say about GIMP). It will run on most computers but for dealing with complex "high poly" models or getting fast render times a more powerful machine helps, but slower machines can still do this (only slower and with a little bit of freezing)
I had heard before, back in 2013 ish, that microsoft was planning to implement more 3d stuff into their operating systems, I can't say I know what 3d builder is like and what it does but the fact the 3d things are being built into operating systems is a good sign. It would be interesting to know how this new 3d builder thing relates and compares to other 3d programs, also whether it will import and export common formats like obj, dae and 3ds.
*because modelling in blender is trickier than modelling in sketchup, but blender can do all the rendering and animation where sketchup can only do modelling.
Edited by rp88, 20 September 2015 - 11:08 AM.
Back on this site, for a while anyway, been so busy the last year.
My systems:2 laptops, intel i3 processors, windows 8.1 installed on the hard-drive and linux mint 17.3 MATE installed to USB