linebender/vello
Vello
Vello is a cross-platform graphics library and GPU-accelerated 2D vector renderer. It functions as an engine for drawing high-performance 2D scenes, rendering scalable vector graphics files, and playing Lottie animations.
The project utilizes GPU compute shaders for rasterization and stores vector geometry in a GPU-resident scene graph to minimize data transfer. It employs a tiled rendering architecture and parallelized path rendering to process complex imagery across diverse graphics APIs.
The library provides hardware-accelerated compositing and enables the output of rendered 2D visual data directly to native operating system windows across different hardware platforms.
Features
- Vector Graphics Rendering - Provides high-performance rendering of 2D scenes and complex vector imagery using GPU compute shaders.
- Cross-Platform Graphics Frameworks - Functions as a high-performance drawing system for hardware-accelerated visuals across multiple platforms.
- Compute Shader Pipelines - Implements compute shader pipelines to calculate pixel coverage and color for high-performance vector rasterization.
- 2D Rendering Engines - Provides an engine optimized for drawing two-dimensional graphics and animations using GPU hardware acceleration.
- Parallelized Path Rendering - Breaks complex vector paths into small segments processed simultaneously across thousands of GPU cores.
- Tiled Rasterization Architectures - Divides the screen into small grids to optimize memory access and reduce redundant pixel calculations.
- GPU-Resident Scene Graphs - Stores vector geometry and drawing commands directly in GPU memory to minimize data transfer during frames.
- Vector Animation Libraries - Ships tools for animating vector paths and shapes to create fluid motion graphics.
- Graphics API Abstractions - Provides a unified interface via wgpu to translate compute commands across Vulkan, Metal, and DirectX.
- SVG-Based Vector Rendering - Renders scalable vector graphics files by parsing XML data into visual elements.
- Lottie Players - Includes a dedicated rendering engine for playing vector-based Lottie animation files.
- GPU Compositing - Uses the GPU to assemble and paint visual layers and transparency effects for high frame rates.
