Alloy Graphics Library

Alloy is yet another 2D/3D graphics library written in C++11. As mundane as that sounds, this API provides an extensive collection of UI components and engineering reference implementations of common 2D/3D graphics algorithms for fast prototyping on windows and linux platforms.

Contents

• Anti-aliased 2D graphics drawing (NanoVG).
• Truetype fonts (stb_truetype).
• OpenGL core 3.3 and higher support. Legacy OpenGL will not run, but you won't need it!
• Generic handling of absolute/relative coordinates in pixels, dp, in, and mm.
• Tweenable positions, dimensions, font sizes, and colors.
• UI components: Region, Composite, Border Layout, Vertical Layout, Horizontal Layout, Scroll Bars, Draw 2D Region, Text Button, Icon Button, Text Icon Button, Text Field, Selection Box, Drop Down Box, Menu Bar, Vertical Slider, Horizontal Slider, Color Selection, File Dialog, File Field, File Button, List Box, Window Pane, Graph Plot, Progress Bar, Expand Region, Toggle Box, Check Box, Glass Pane.
• Worker, timer, and recurrent worker.
• Vector types from one to four dimensions.
• Quaternions.
• Color space support for RGBA, HSV, CieLAB, XYZ, Gray, and look-up tables.
• Sparse Matrix, Dense Matrix, Dense Vector, Array, Image, and Volume data structures.
• Data structure serialization to json, binary, and xml (cereal).
• Image IO (stb_image and tinyexr) for PNG, JPEG, TIFF, HDR, PSD, BMP, GIF, PNM, PIC, TGA, EXR, and XML (Mipav's encoding).
• Mesh IO for PLY and OBJ (tinyobj).
• Dense and sparse matrix solvers including SVD, QR, LU, CG, and BiCGstab.
• The "Any" class to enable methods with arbitrary left-hand return types.
• Perspective and orthographic cameras with methods to transform from world to screen or vice versa.
• "Awesome font" icons.
• Window screenshot (F11).
• Arbitrary mouse cursors.
• Common shaders for deferred rendering in OpenGL 3.3 and higher.
• Distance Field 2D/3D (fast-marching method).
• Delaunay Triangulation.
• Point Kd-Tree 2D/3D (libkdtree).
• Approximate Nearest Neighbors in N-dimensions (nanoflann).
• Mesh Kd-Tree (ray-intersection and closest point).
• SHA1, SHA-256, SHA-384, SHA-512.
• Cross-Platform file system IO.
• NURB curves, B-Splines, and Beziers (tinyspline).
• Catmull-Clark and Loop mesh sub-division.
• Mesh primitives for box, icosahedron, sphere, cylinder, torus, plane, cone, pyramid, frustum, capsule, tessellated sphere, grid, and asteroid.

Future Work

• Message pop-ups, number field.
• Active contour segmentation
• Iso-contour / Iso-surface
• Visual programming UI
• Image processing for anisotropic image diffusion, Mumford-Shah, Rudin-Osher-Fatemi, Chan-Esedolgu-Nikolova
• Automatic UV generation (OpenNL)
• 2D fluids (Stam's stable fluid simulator)
• Progressive Meshes
• Gradient Vector Flow
• KAZE features
• DAISY features
• Spring Level Sets
• Force directed graph and other visualizations (Prefuse)
• "One Euro" filter
• 2D physics (box2D)

Dependencies

GLFW 3.1+ and GLEW. Source code for all other libraries is included in the repository and compiles on windows and linux (unsure about mac, buy me a mac and I'll make sure it works ^_^).

License

Alloy is BSD licensed and only uses libraries that also have a permissive license for commercial and academic use.

Absolute/Relative Positioning Example

Composite Example

Events Example

Drag and Drop Example

Tween Animation Example

Image Example

Controls Example

Dialog Example

Expand Bar Example

Mesh with Matcap Shading Example

Mesh Wireframe Example

Mesh Subdivision Example

Mesh Texture Example

Mesh with Per Vertex Color Example

Particles Example

Mesh Depth / Normals / Distances Example

Mesh Phong Shading Example

Laplace Fill Example

Poisson Blend Example

Poisson Fill Example

Image Filter Example

Object/Face Picker Example

Mesh Ray Intersection Example

Mesh Smoothing Example

Color Space Example

Mesh Primitives Example

Menu System Example

Point Locator Example

Graph Example

Window Pane Example

B-Spline Example

Distance Field Example