Demo for Volume Raycasting using ModernGL

A simple Volume Raycasting demo using PyQT5 and ModernGL. The demo requires OpenGL >=4.1 and has been tested on OSX (planned Linux/Win)

Author: Ulrich Eck https://github.com/ulricheck

Code for OpenGL Camera Control copied from: https://github.com/pyqtgraph/pyqtgraph/blob/develop/pyqtgraph/opengl/GLViewWidget.py

Code and example data for Volume Raycasting copied from: https://github.com/toolchainX/Volume_Rendering_Using_GLSL

Dependencies

• Python >=3.5
• PyQt5 (>=5.6)
• PyOpenGL
• numpy
• ModernGL wrapper docs
• Pyrr Math library docs

Installation

git clone https://github.com/ulricheck/ModernGL-Volume-Raycasting-Example.git
cd ModernGL-Volume-Raycasting-Example
pip3 install -r requirements.txt

Running the demo

python3 volume_raycasting_example.py

This will open an opengl window

Further Reading

• A simple and flexible volume rendering framework for graphics-hardware-based raycasting
• Acceleration Techniques for GPU-based Volume Rendering
• Real-time Volume Rendering for High Quality Visualization in Augmented Reality