PhotoSpills - Easy to use PC collage software with unlimited design possibilities.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
PhotoCollage - PhotoCollage allows you to create photo collage posters from a list of photographs.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Shape Collage - Shape Collage is a photo collage maker software program. Automatically create picture collages in a variety of shapes with just a few mouse clicks. Available for Windows, Mac OS X, and Linux.
Autodesk Maya - Maya is 3D computer animation software with powerful modeling, rendering, simulation, texturing, and animation tools for artists, modelers, and animators.