> For the complete documentation index, see [llms.txt](https://fater.gitbook.io/fater-ai-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fater.gitbook.io/fater-ai-docs/glossary-of-terms.md). # Glossary of Terms This glossary provides definitions for common terms and concepts you'll encounter while using Fater and reading this documentation. *** **A** * **Activity Type (Editor Mode):**\ Refers to the different specialized workspaces within the Fater Editor, such as the Image Editor, Asset Editor, or Video Editor. Each mode tailors the UI and tools for specific tasks. *(See Activity Types (Editor Modes))* * **Agent:**\ Fater's integrated AI assistant, accessible via the Settings Tab. Agents can help with prompts, explain features, and are configurable with different system prompts, LLM models, and temperatures. *(See The Agent & How to Use It)* * **AI Model Directory:**\ A reference section in this documentation listing available AI models, their user-facing names, categories, typical uses, and key parameters. *(Link to AI Model Directory)* * **Aspect Ratio:**\ The proportional relationship between an image's width and its height (e.g., 16:9, 1:1 for square). * **Asset (3D):**\ A three-dimensional model or object, which can be generated using AI in Fater's Asset Editor. * **Auto-Save:**\ Fater's system for automatically saving your project progress in the background after short periods of inactivity. *(See Understanding Auto-Save)* **B** * **Batch (Generation Batch):**\ A set of one or more outputs (images, assets, videos) generated from a single click of the "Generate" button with a specific set of parameters and prompt. * **Bounding Box (Generation Area):**\ The dashed rectangular outline on the Inpaint Canvas that defines the active region for AI processing and masking. *(See The Generation Area (Bounding Box))* **C** * **Canvas (Inpaint Canvas):**\ The main interactive workspace in the Image Editor where layers are displayed, masks are drawn, and direct edits are made. * **Canvas (Asset Canvas / Video Canvas):**\ The main viewing area in the Asset Editor (for 3D assets) or Video Editor (for video playback). * **Checkpoint (Model Checkpoint):**\ A specific version or trained state of an AI model. Some Fater models (like certain upscalers) allow you to choose a checkpoint, which can influence the style or quality of the output. * **Control Layer (Edges/Depth):**\ An image layer (either an Edges map or a Depth map) designated to provide structural or spatial guidance to "Controlled" AI models. *(See Control Layers (Edges/Depth))* * **Credits:**\ The virtual currency used to perform AI generation tasks in Fater. Acquired through plans. *(See Billing & Subscription)* * **Cutter (Edge Drawing Tool):**\ A direct layer editing tool in the Image Editor used for drawing straight white lines, often for creating Edges maps. **D** * **Dashboard:**\ The central hub you see after logging in, used for managing projects, organization settings, and accessing your account. * **Depth Map:**\ A grayscale image where pixel intensity represents distance, used as a Control Layer to guide AI with 3D spatial information. * **Denoising Strength:**\ A concept in some inpainting/image-to-image models that controls how much the AI alters existing pixels under a mask versus generating entirely new content. A strength of 1.0 usually means full replacement. *(See "Destroy Fill Area Behind Mask" parameter)*. * **Destroy Fill Area Behind Mask:**\ A parameter for some "Edit" category AI models. If "Yes," the AI completely ignores original pixels under a mask during inpainting. If "No," original pixels can influence the result. **E** * **Edges Map:**\ A black and white image where white lines represent outlines and contours, used as a Control Layer to guide AI with structural information. * **Editor Modes:** See *Activity Type*. **F** * **Floating Prompt Area:**\ The persistent UI element at the bottom-center of the Editor, containing the text prompt input, Generate button, and Generation Task List. **G** * **Generation Area:** See *Bounding Box*. * **Generation Task List:**\ The row of thumbnails in the Floating Prompt Area displaying recent AI generation results. *(See Working with the Generation Task List)* * **Guidance Scale (CFG Scale):**\ A common AI parameter that controls how strictly the generated output adheres to the text prompt. **I** * **Image Editor:**\ The Fater Editor Mode for 2D image creation, AI generation, and layer-based editing. * **Inpainting:**\ An AI technique where a masked area of an image is filled in or modified based on a prompt and the surrounding image context. * **Inpaint Toolbar:**\ The floating toolbar in the Image Editor providing tools for masking, direct layer editing, and canvas actions. **L** * **Layer:**\ An individual image or element in the Image Editor that can be manipulated independently. Layers are stacked to form a composite image. *(See The Layer Stack)* * **Layers Tab:**\ The tab in the Right Sidebar of the Editor used for managing the layer stack, layer properties, and Layer Workspaces. * **Layer Workspace:**\ A separate, independent layer stack within the Layers Tab, used for organizing complex projects or variations. * **LLM (Large Language Model):**\ The type of AI model that powers Fater's Agent. **M** * **Mask:**\ A selection that defines a specific area of an image for AI operations or targeted edits. Usually visualized as a semi-transparent overlay. *(See Masking for AI)* * **Mask Alpha Radius:**\ A parameter for some AI models (inpainting, upscaling) that controls the transparency feathering at the edge of the generated/affected area for smoother blending. * **Mask Extra Radius:**\ A parameter for some inpainting models where the AI generates content slightly beyond the defined mask to improve blending. * **Model Selector:**\ The UI component in the Left Sidebar of the Editor used to browse and select AI models based on categories and types. **N** * **Negative Prompt:**\ A text description telling the AI what elements, styles, or qualities to *avoid* generating. **O** * **Opacity:**\ The transparency level of a layer. 100% opacity is fully opaque; lower values are semi-transparent. * **Outpainting:**\ An AI technique, often related to inpainting, used to extend the canvas and generate new content beyond the original image boundaries, guided by a prompt and existing image context. **P** * **Parameter:**\ A configurable setting for an AI model that influences its behavior and output (e.g., Steps, Guidance, Seed). * **Pencil Tool:**\ A direct layer editing tool in the Image Editor for freehand drawing on a selected layer. * **Prompt (Text Prompt):**\ The primary textual description given to an AI model to guide its generation. **R** * **Reference Image (External):**\ A separate image uploaded by the user to provide visual guidance (style, content) to certain AI models, in addition to a text prompt. * **Restore Layer Config:**\ A feature on AI-generated layers that reapplies the model and parameters originally used to create that layer. **S** * **Seed:**\ A number that initializes the random process in AI generation. Using the same seed (with other inputs constant) produces the same result. *(See Seeds)* * **Segment Mask (Prompt to Mask):**\ An AI-powered feature where the user provides a text prompt, and the AI generates a new layer representing a mask for the described object/region. * **Steps (Diffusion Steps):**\ A common AI parameter controlling the number of refinement iterations. More steps often mean more detail but longer generation time. **U** * **Upscaling:**\ The process of increasing an image's resolution and enhancing detail using AI.