CinePaint is a collection of free open source software tools for deep paint manipulation and image processing. CinePaint is used for motion picture frame-by-frame retouching, dirt removal, wire rig removal, render repair, background plates, and 3d model textures. It's been used on many feature films, including THE LAST SAMURAI where it was used to add flying arrows.

CinePaint is fundamentally different from other painting tools because it handles high fidelity image formats such as Kodak Cineon, SMPTE DPX, and ILM/NVIDIA OpenEXR. To do that properly requires a 32-bit per channel color core so that data isn't crushed into an 8-bit color channel. The CinePaint core is 8-bit, 16-bit, and 32-bit as needed.