Salmon Viewer is a 3D model viewer (currently only 3ds files). It is written in C# and runs on Windows, Linux, and OSX. Models are rendered in OpenGL using the

Usage
The viewer must be used from the command line with a single argument which is the path to the 3ds file:
SalmonViewer.exe c:\path\to\file.3ds
Mono users would preface that command with 'mono'
Once loaded, you can interact with the interface with the following commands:
'w','s' move forward and backward
'a','d' turn left and right
'z','x' move up and down
'-','=' move light source along x-axis
click and drag the mouse to change direction
As of 0.2, rotation is supported:
'[',']' rotate object on x axis
';',''' rotate object on y-axis
'.','/' rotate object on z-axis

It's basically like a first-person game.

The license of this software is Free, you can free download and free use this 3d graphic software.