Josh's Graphics Library

Yet Another C++ Rendering Toolkit

Features

• Modern C++ (20).
• Cross Platform (Linux & Windows 10 1909 or newer).
• Provides single-function-calls to render various graphics in 2D and 3D.
• Integrates right into an existing OpenGL rendering system.
• Quick Rendering of Text, Shapes, Sprites / Textures, etc.
• High-performance text rendering.
• Little-to-no overhead.

API Overview

J2D

• DrawPoint
• DrawLine / DrawGradientLine / DrawDottedLine / DrawDashedLine / DrawLines
• DrawSprite / DrawPartialSprite
• DrawRenderTarget / DrawPartialRenderTarget
• OutlineRect / OutlineRoundedRect / OutlineChamferRect
• FillRect / FillGradientRect / FillRoundedRect / FillChamferRect
• OutlineCircle / FillCircle
• OutlineTriangle / FillTriangle / FillGradientTriangle
• DrawString
• DrawCubicBezierCurve
• DrawArc
• OutlineEllipse / FillEllipse

J3D

• DrawLine
• DrawString
• DrawMatrixGizmo (WIP)
• DrawAxisAngleGizmo (WIP)
• DrawQuaternionGizmo (WIP)

Types

• RenderTarget
• VRamList
• Texture
• Font

Usage

// Makes sure the glViewport will be the correct size.
// Typically done once per frame.
JGL::Update(window_size);

JGL::J2D::Begin();
    JGL::J2D::FillRect(Colors::Blue, {0,0}, {16,16});
JGL::J2D::End();

// See the example program in main.cpp for more in-depth usage.

Requirements

An OpenGL 2.1 or newer accelerator with at-least two texture mappers that supports the GL_ARB_framebuffer_object extension or an implementation that can provide those features through alternative means (common on ArmSoC and Risc-V).

Compatability

• AMD ✓
• NVIDIA ✓
• Intel ✓
• Zink (OpenGL-on-Vulkan) ✓
• GL4ES ✓

Documentation

Documentation is available here.

Contributing

Contributions to JGL are welcome! If you find a bug, have a feature request, or would like to contribute code, please submit an issue or pull request to our repository!

Acknowledgements

JGL is developed and maintained by Josh O'Leary @ Co from Redacted Software and contributors. Special thanks to Redacted.