# Prefabs Overview [View as Markdown](https://docs.banuba.com/far-sdk/effects/prefabs/overview.md)[![](/far-sdk/img/ai-guide/chatgpt.svg)Open in ChatGPT](https://chatgpt.com/?q=Read%20https%3A%2F%2Fdocs.banuba.com%2Ffar-sdk%2Feffects%2Fprefabs%2Foverview.md%20\(Prefabs%20Overview\)%20and%20help%20me%20with%20it%20in%20my%20Banuba%20Face%20AR%20SDK%20project.)[![](/far-sdk/img/ai-guide/claude.svg)Open in Claude](https://claude.ai/new?q=Read%20https%3A%2F%2Fdocs.banuba.com%2Ffar-sdk%2Feffects%2Fprefabs%2Foverview.md%20\(Prefabs%20Overview\)%20and%20help%20me%20with%20it%20in%20my%20Banuba%20Face%20AR%20SDK%20project.)Install tools A prefab is a high-level object that represents a set of rendering and SDK features. Prefabs are divided into several types: * [On Face](/far-sdk/effects/prefabs/face.md) - prefabs that depend on a face. * [Makeup](/far-sdk/effects/prefabs/makeup.md) - prefabs that represent makeup features and also depend on a face. * [Top Level](/far-sdk/effects/prefabs/top_level.md) - prefabs that affect the entire screen and are not attached to a face. * [On Hands](/far-sdk/effects/prefabs/hands.md) - prefabs that apply effects to hands. * [Sprites](/far-sdk/effects/prefabs/sprites.md#sprites) - prefabs that represent simple 2D sprites. * [Sounds](/far-sdk/effects/prefabs/sounds.md) - prefabs that represent audio. Example prefab configuration: ``` { "scene": "effect name", "version": "2.0.0", "camera": {}, // Top level prefabs "background": { // ... }, "foreground": { // ... }, "lut": { // ... }, "lights": { // ... }, "msaa": { // ... }, // On Face "faces": [ { // first face "face_prefab1": { //... }, "makeup_prefab1": { //... } // ... }, { // second face } // .. ], // Sounds "sounds": [ { "sound_prefab1": { //... }, "sound_prefab2": { //... } // ... } ], // Sprites "sprites": [ { "sprite_prefab1": { //... }, "sprite_prefab2": { //... } // ... } // ... ] } ``` Where: * `scene` - the name of your effect. * `version` - the version of this configuration file. Always set it to `2.0.0`. Earlier versions are intended for complex legacy effects. * `camera` - indicates that the camera feed will be rendered on the screen. * `faces` - an array of JSON objects describing the features to place on each face. For each face, define a JSON object whose keys are prefab names and whose values are the parameters for those prefabs. * `top_level_prefab` - one of the top-level prefabs. * `sprites` - an array of JSON objects describing sprite features. * `sounds` - an array of JSON objects describing sound features. tip You can create an effect with any set of prefabs. tip You can change an effect at runtime by calling the `reload_config()` or `reloadConfig()` method: * C++ * Java * Swift * JavaScript ``` constexpr auto new_config = R"( { "camera" : {}, "background" : { // ... } } )"; effect_player->effect_manager()->reload_config(new_config); ``` ``` import com.banuba.sdk.player.Player // ... val newConfig = "" " { "camera" : {}, "background" : { // ... } } "" "; player.effectPlayer.effectManager() .reloadConfig(newConfig) ``` ``` import BanubaEffectPlayer // ... let newConfig = """ { "camera": {}, "background": { // ... } } """; player.effectPlayer?.effectManager().reloadConfig(newConfig) ``` ``` const new_config = `{ "camera": {}, "background": { // ... } }` player._effectManager.reloadConfig(new_config) ``` note Colors are represented as three- or four-component strings. Each component is a value in the range *\[0, 1]* or *\[0, 255]*, and components are separated by spaces. For example, `1 0 0 1` represents red. HTML-style hex strings are also accepted. For example, `#00FF00` represents green; an alpha value of `FF` is assumed when omitted.