Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Monitorian - Monitorian is a Windows desktop tool to adjust the brightness of multiple monitors with ease.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Twinkle Tray - Easily manage the brightness of your monitors in Windows from the system tray.
Autodesk Maya - Maya is 3D computer animation software with powerful modeling, rendering, simulation, texturing, and animation tools for artists, modelers, and animators.
Dimmer - A very small and free utility for Windows to reduce brightness on LCD/TFT screens.