Real-time 3D Upscaling Demo

Real-time upscaling demo using C++ and OpenGL

This project is a simple real-time upscaling demo using C++ and OpenGL.
It implements classic spatial upscalers and AMD-style techniques:

• Nearest Neighbor
• Bilinear
• EASU (Edge-Adaptive Spatial Upscaling)
• RCAS (Robust Contrast-Adaptive Sharpening)

The project includes a small demo app (textured cube + ImGui controls).

Table of contents

• Features
• Folder Structure
• Build Instructions
• Controls
• Library Usage
• License

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✨ Features

• Render at a lower resolution and upscale to your display.
• Switch between upscaling modes at runtime (via ImGui).
• Adjustable sharpening strength (for RCAS).

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📂 Folder Structure

upscaler-demo/
├── dependencies/                   # Project dependencies (e.g., third-party libraries)
│   ├── include/                       
│   └── lib/               
├── public/                         # Static assets like images                       
│   └── images                      
├── src/
│   ├── shaders/                    # GLSL shader files
│   └── main.cpp                    # Main application entry point
└── CMakeLists.txt                  # CMake build script

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🔧 Build Instructions

Requirements:

• CMake ≥ 3.29
• OpenGL 3.3+
• A C++23 compiler (GCC/Clang/MSVC)

Steps:

git clone https://github.com/Yojda/upscaler-demo.git
cd upscaler-demo
mkdir build && cd build
cmake ..
make

Run the demo:

./upscaler-demo

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📜 License

MIT License – free to use and modify.