KlakSpout is a Unity plugin that allows sharing rendered frames with other applications with using the Spout protocol.
The Spout protocol is supported by several frameworks (Processing, openFrameworks, etc.) and software packages (Resolume, AfterEffects, etc.). The plugin allows Unity to interoperate with them in real time without incurring much overhead.
- KlakSpout requires Unity 5.6.0 or later.
- KlakSpout only supports Direct3D 11 (DX11) graphics API mode. Other APIs (DX9, DX12, OpenGL core, etc.) are not supported at the moment.
You can send rendered frames from a camera in a scene with attaching the SpoutSender component to it.
You can receive frames from other applications and store them into a render texture, or set them to a material property as an animating texture.
Download one of the unitypackage files from the Releases page and import it to a project.
SpoutSender is a component for sending rendered frames to other Spout-compatible applications.
SpoutSender has only one property. Clear Alpha controls whether if contents of the alpha channel are to be shared or discarded. When it's set to true, it clears up the contents of the alpha channel with 1.0 (100% opacity). It's useful when the alpha channel doesn't have any particular use.
SpoutReceiver is a component for receiving frames sent from other Spout-compatible applications.
Name Filter is used to select which Spout sender to connect to. The receiver only tries to connect to a sender that has the given string in its name. For instance, when Name Filter is set to "resolume", it doesn't connect to "Processing 1" nor "maxSender", but "resolumeOut". When Name Filter is kept empty, it tries to connect to the first found sender without name filtering.
SpoutReceiver supports two ways of storing received frames. When a render
texture is set to Target Texture, it updates the render texture with the
received frames. When Target Texture is kept null, it automatically allocates
a temporary render texture for storing frames. These render textures are
accessible from scripts with the sharedTexture property.
Received frames can be rendered with using material overriding. To override a material, set a renderer to Target Renderer, then select a property to be overridden from the drop-down list.
The Spout Sender List window is available from the menu "Window" -> "Spout" -> "Spout Sender List". It shows the names of the senders that are currently available.