sgl

simple wrapper on glfw/opengl for use in personal projects. can use go port of imgui for gui.

Todo

• some useful 'premade' shader programs
  • 2d image "splat" (png, jpg, image.Image,...)
  • 3d shapes with vertex colors, normals, textures, point/directional lights
  • skybox
• More opengl features.
• Improve text/font rendering in font.go.
  • should be able to queue all strings into a single vbo with vertex coords and texture coords, then draw all in a single draw call.
• rename some types and functions.
• add utilites (from my gaia stars program)
• make Texture2D more flexible
• program->vao mapper?
  • to do foreach program { enable program; foreach vao { draw vao } }
• change all "load" funcs that take a string path to also accept a fs.FS as the root
  • this will allow me to use pkg embed or os.DirFS, etc

Changelog

• 0.6.0 todo
  • mouse and camera structs (when finalized).
  • keyboard/mouse somehow integrated into Window or other "input" manager?
  • map of pressed keys/mouse buttons so don't pass *Window to ChordSet.
• 0.6.0
  • update go version: 1.14 -> 1.18
  • update dependency: imgui v2.3.0 -> v4.4.0 (imgui v1.85)
• 0.5.0
  • ChordSet functionality changed so chords are executed until all matching chords are executed or a chord with "Stop" set to true is executed.
  • icon loading window option.
  • convienience function to get font names from FontMap for use in Selecter.
  • real fix for imgui renderer to display images in color (from v0.3.0)
  • function to check opengl errors, and error type.
• 0.4.0
  • skybox
  • resizable window option at creation
  • small api changes to Texture2D
  • Selecter uitility, basically for easier imgui combo and list boxes
  • changes to Chord/ChordSet that simplfy api and fix a subtle timing bug.
  • addition to Window of "Timer" named Clock
  • additions to Window for use in rendering loop control
  • addition of "IsNthFrame()" to Timer
  • simplify Vao to make mostly-unused params to Set*() and Draw() use defaults.
• 0.3.0
  • changed/"fixed" imgui renderer to display images in color
  • modified window creation api to allow for fonts with imgui
  • package level function to set "default" (for me) opengl settings
  • a few useful utility types (Timer, Cycler, AnimationMap...)
• 0.2.0
  • screen capture to image.Image
  • added simple framebuffer object.
  • renamed main data structure.
  • different api for window/platform creation.