Open Shading Language
Open Shading Language is a shading language developed by Sony Pictures Imageworks for use in its Arnold Renderer. It is also supported by Illumination Research's 3Delight renderer, Otoy's Octane Render, V-Ray 3, and by the Cycles render engine in Blender. OSL's surface and volume shaders define how surfaces or volumes scatter light in a way that allows for importance sampling; thus, it is well suited for physically-based renderers that support ray tracing and global illumination.Movies
Many movies made in 2012 or later have used OSL, including
