eleev / jtoolkit

☕️ Collection of various utilities, classes and shaders for Java + OpenGL + GLSL development.

jToolkit

Last Update: 22/April/2022.

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✍️ About

A collection of various utilities, classes and shaders for Java+OpenGL+GLSL(fixed function pipeline mostly) programming. The sources were originally developed for education pusposes and then I decided to open source everything.

⚠️ Warning

• The sources are legacy and were originally developed using JDK 5.0, JDK 6.0, OpenGL 1.0, OpenGL 1.1, OpenGL 1.2, OpenGL 2.0, and OpenGL 3.1 - take it into consideration if you decide to use the sources.
• The used assets were found on the Web and cannot be used in commertial purposes.

🏗 How to Get Started

Simply copy-paste shader programms and classes into your project. Import them to class(es) that you need to and you're good to go.

📝 Notes

• You might see that the author in some places is Virus. This is my nickname.
• The used assets were found on the Web. Do not use them for commertial purposes. They are only used for demostration.
• My appologies for the lack of comments and proper explanation of what is going on inside of complex shaders and classes.
• The main reason for publishing this code was to share some groundwork related to OpenGL's fixed function pipeline, which may be useful for some developers or early stage learnerns.

📚 Contents

[*] The term Object referes to the commonly used naming convention in OpenGL (Vertex Buffer Object, Vertex Index Object etc.) and has no relation to Object-Oriented Paradigm.

Tools, Data Structures and Utilities:

• Accumulation Buffer - high-level tool for OpenGL's Accumulation Buffer
• Stencil Buffer - high-level tool for OpenGL's Stencil Buffer
• Walkable Goblin Demo - demonstrates an animation approach related to 3D model and how programmatically you can build mirrors
• Various drawing methods - high-level tools for immediate mode drawing, display lists, VAO and VBO
• Camera PP - implementation of a camera for programmable rendering pipeline
• Image Loader
• Model Loader
• Model Object
• Texture Object
• Timer Utility
• Matrix Utility
• Buffer Tools
• Various Camera Implementations for FPP - First person and Euler camera implementations
• Color Objects
• FPS Meter
• GLUT
• Meth Tools
• Shader Program Object
• Timer
• Buffer Utils 1
• Buffer Utils 2
• Image Processor
• Screenshooter
• JPEG Drawer
• Various Image Readers: PNG, RAW, TWL, TARGA, Height Map
• Sprite Sheet and Entity Rendering
• Texture Loader/Uploader Objects
• Ketframe Animation Utilities
• Lightning
• Shadow Mapping and Gereration
• Matrix Utilities
• Model Representation: Face and Model
• OBJ Drawer, Loader and Parser
• Particle System
• Physics Primitives: AABB2d, AABB3d, Bounding Boxes, Bounding Volumes and vairous physics shapes
• Point Data Structure
• Primitive Geometric Objects
• Quaternion Data Structure
• Cubic and Spheric Skyboxes
• Terrain
• Vector Data Structre

Examples of:

• Prgrammable Rendering Pipeline
• Fixed Function Rendering Pipeline

Shaders:

• Base Rendering
• Texturing
• Twist Effect
• NVIDIA'S GPU Gems Implementation for Wave Simulation
• Lamberian Light Model
• Phong Light Model
• Ambient Light
• Colorize
• Diffuse Light
• Flatten Shading
• Landscape/Hightmap Helper
• Per-fragment Phong Light Model
• Per-fragment Lighting
• Per-pixel Phong Light Model
• Per-pixel Point Light Model
• Per-pixel Spot Light
• Per-pixel Toon Shading
• Plastic Lighing
• Specular Lighting 01
• Specular Lighting 02
• Toon Shading

👨‍💻 Author

Astemir Eleev

🔖 License

jToolkit is realeased under the MIT License