From the Indigo Renderer Forums. For names of contributors to this list, visit the thread originally started by tungee here.
Key:
if anyone has any information on platform compatibility please contact me.
Runs under Windows
Runs under Linux
Runs under Linux running Wine
Runs under OSX
Freeware
Free software.
Acme Online Masonry Designer
Brick face generator. Must have for anyone who does architectural visualization!http://www.brick.com/md/md2.swf
Chaoscope
A 3D strange attractors rendering software
http://www.chaoscope.org
Genetica
Seamless texture viewer
Lets you get the free libraries and export them as jpegs.
http://www.spiralgraphics.biz/viewer/index.htm
Indigo
The best free unbiased renderer ever in the world ever.
Ever.
http://www.indigorenderer.com
Irfanview
Image viewer and corrector
http://www.irfanview.com
Lego digital designer
Erm.., it's a digital designer for Lego
http://ldd.lego.com/
Mapzone
http://www.mapzoneeditor.com/index.php?PAGE=HOME
Moment of Inspiration
http://moi3d.com
Picasa
Picture library viewer and organizer
Plasma pong(being developed)
You will get hooked
http://www.plasmapong.com
Poseray
Supported Import Formats:Wavefront(OBJ & MTL),3D studio(3DS), LightWave(LWO), AutoCAD(DXF), POV-Ray 3.X mesh or mesh2, VRML(WRL, GZ), Raw Triangle(RAW)
Supported Export Formats: POV-Ray full scene with camera, lights, materials and geometry, Wavefront (OBJ & MTL), Moray(UDO, INC)
http://mysite.verizon.net/sfg0000
SBC Archiver
Archiver (command line only - no GUI) with advanced encryption
http://www.geocities.com/sbcarchiver
ShapeShop v002
A very curious modeller. Check the demo reel
http://unknownroad.com/index.html
Super ©
Video format convertor
http://www.erightsoft.com/SUPER.html
TopMod
http://www-viz.tamu.edu/faculty/ergun/research/topology
Voodoo camera tracker
Does what it says on the tin
http://www.digilab.uni-hannover.de/docs/manual.html
Xnormal
normal / ambient occlusion / parallax displacement map generator
http://www.xnormal.net/
Open Source
Free to use and modify software (check the license)
Apophysis
Really fun fractal generator. Renders at extremely high res
http://www.apophysis.org
Arbaro
Tree generator
http://arbaro.sourceforge.net/
Ardour
HD Recorder with unlimited audio tracks, a lot of plug-ins and surround mixing inclusive!
http://www.ardour.org
Audacity
Audio editor
Ayam
Nurbs modelling software
http://ayam.sourceforge.net/ayam.html
Bacula
Network backup solution
http://bacula.org
Blender
Full featured 3D graphics suite
http://blender.org/cms/Home.2.0.html
ClamWin
Free antivirus for windows
http://www.clamwin.com
DVD Flick
Quick and simple video file to DVD convertor
http://www.dvdflick.net/
Electric sheep
Evolving and awesome screen saver
Eraser
File shredder
http://www.tolvanen.com/eraser
Freestyle NPR
For non-photographic renders
GIMP
Somebody had to post it sooner or later.
GREYCstoration
Noise remover
http://www.greyc.ensicaen.fr/~dtschump/greycstoration
Filezilla
File Transfer Protocol (FTP) client and server
http://filezilla.sourceforge.net/
Hugin
GUI for Panotools (see further down in this list)
http://hugin.sourceforge.net/
ImageMagick
Batch image processor
http://www.imagemagick.org/script/index.php
Inkscape
free vector drawing app
http://www.inkscape.org
You can import svg into blender and use it for further modelling. There's a great tutorial on how to use inkscape to draw a floorplan and then import it into blender here:
http://www.opendimension.org/ida/inkscape.php
Ivy Generator
A vegetation creator
http://graphics.uni-konstanz.de/%7Eluft/ivy_generator
Jahshaka
http://www.jahshaka.org
Jedit
http://www.jedit.org
K3DSurf
Visualize and manipulate Mathematical models in three, four, five and six dimensions
http://k3dsurf.sourceforge.net/
Makehuman
http://www.dedalo-3d.com
MeshLab
An open source, portable, and extendible system for the processing and editing of unstructured 3D triangular meshes
http://meshlab.sourceforge.net
MySQL
SQL database that's very fast and versatile
http://www.mysql.org
NGPlant(source code is platform independent)
Plant modelling software
http://ngplant.sourceforge.net/
Notepad++
Source code editor and Notepad replacement
http://notepad-plus.sourceforge.net
Openlaszlo
Website authoring with flash
http://www.openlaszlo.org
OpenOffice
90% the functionality, 0% of the price
http://www.openoffice.org
Paint.net
Image and photo manipulation software
http://www.getpaint.net/index.html
Panotools
Panoramic imaging tools. See also Open Source: Hugin
http://panotools.sourceforge.net/
Plantstudio
Tool for creating 3D plant models and 2D illustrations
http://www.kurtz-fernhout.com/PlantStudio/
SciTE
http://www.scintilla.org/SciTE.html
Screenweaver
Turns flash into .exe executable
http://screenweaver.com
Scribus
Award-winning professional page layout application
http://www.scribus.net/
Smartision ScreenCopy
Screenshot utility
http://smartision-sc.sourceforge.net/
Swftools
Allows you to author .swf in various ways
http://www.swftools.org
TA Springs
Open Source real time strategy
http://taspring.clan-sy.com
TortoiseSVN
All you ever need for versioning
http://tortoisesvn.net
Truecrypt
For encryption
http://www.truecrypt.org
Ubuntu(obviously)
http://www.ubuntu.com
VirtualBox
OS virtualization package
http://www.virtualbox.org/
Virtualdub
For linear video editing
http://www.virtualdub.org
Wings 3D
Subdivision modeller
http://www.wings3d.com
Free Versions
Free versions of commercial software
Alibre Express
2D/3D solid modeller
http://www.alibre.com/xpress/software/alibre-design-xpress.asp
ArtRage
Free EditionPaint program for sketches etc.
http://www.artrage.com/artrage.html
Autostitch
An image stitching program that requires no user-input whatsoever. Fully automatic but, apparently, only a demo.
http://www.cs.ubc.ca/~mbrown/autostitch/autostitch.html
Bricks 'n' tiles
http://www.3d-rekonstruktionen.de/bricksntiles
Google Earth
Has mapquest functionality (directions, point-of-interests, etc.)
http://earth.google.com/download-earth.html
Sketch-based 3D modelling
http://sketchup.google.com
HDRShop
High Dynamic Range image editor
http://www.hdrshop.com
Medusa4
CAD program
Noiseware(OSX as a plug-in only)
Noise remover
http://www.imagenomic.com/nwsa.aspx
Landscape generator
http://www.planetside.co.uk/terragen
Vmware
Server/player for all your virtualisation needs
http://www.vmware.com
WinTopo
http://wintopo.com