ogrecave/ogre

★ 4,561C++Audience · developerComplexity · 4/5LicenseSetup · hard

Mindmap

mindmap
  root((ogre))
    What it does
      3D rendering engine
      Cross-platform
      Graphics API abstraction
    Rendering Features
      Physically based shading
      Shadow techniques
      Particle systems
      Post-processing
    Integrations
      Bullet physics
      Dear ImGui
      ROS rviz
    Language Bindings
      C++
      Python
      C# and Java

mindmap root((ogre)) What it does 3D rendering engine Cross-platform Graphics API abstraction Rendering Features Physically based shading Shadow techniques Particle systems Post-processing Integrations Bullet physics Dear ImGui ROS rviz Language Bindings C++ Python C# and Java

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Things people build with this

USE CASE 1

Build a 3D game or simulation that runs on Windows, Mac, and Linux without rewriting graphics code for each platform

USE CASE 2

Add realistic 3D rendering to a robotics project or visualization tool using OGRE's Python bindings in just a few lines

USE CASE 3

Create a 3D scene with physics, particle effects, and character animation using OGRE's built-in integrations

Tech stack

C++PythonC#JavaWebAssembly

Getting it running

Difficulty · hard Time to first run · 1h+

A prebuilt Windows SDK is available for quick trials, full builds require a C++ toolchain and can take significant time.

Use freely for any purpose including commercial use, as long as you keep the copyright notice.

In plain English

OGRE, which stands for Object-Oriented Graphics Rendering Engine, is a long-running open-source library for building 3D graphics applications. It acts as a rendering backend: rather than drawing 3D scenes directly using low-level graphics APIs like Vulkan, Direct3D, or OpenGL, developers write code against OGRE's API and it handles the differences between those backends. This makes it easier to build applications that run across different operating systems and hardware configurations without rewriting graphics code for each one. The library includes a wide range of 3D rendering features: physically based shading for realistic material surfaces, multiple shadow techniques, skeletal character animation, particle systems for effects like fire and smoke, terrain rendering with level-of-detail handling, post-processing effects like bloom and HDR, and volumetric rendering. It also integrates with the Dear ImGui toolkit for building in-app user interfaces and with the Bullet physics library for simulating rigid body dynamics. These are shown in the README with screenshots of each feature. OGRE is written in C++ but also has Python bindings that let you get a 3D scene running in just a few lines of Python code. The README shows an example that creates a window, loads a 3D model in glTF format, adds a light, and runs a render loop. There is also support for C# and Java. A WebAssembly demo can be run directly in a browser, and a prebuilt Windows SDK is available for trying it without compiling from source. The library has been in active use since 2001 and appears in robotics simulation tools, the ROS visualization tool rviz, OpenCV's visualization module, and several commercial and open-source games including Torchlight II. It is licensed under the MIT license and accepts community contributions.

Copy-paste prompts

Prompt 1

Show me the Python code to create a basic OGRE 3D window, load a glTF model, add a light, and run the render loop

Prompt 2

How do I integrate the Bullet physics library with OGRE in C++ to add rigid body collision to a 3D scene?

Prompt 3

How do I get started with the prebuilt OGRE Windows SDK to try 3D rendering without compiling from source?

Prompt 4

Show me how to set up skeletal character animation in OGRE using the C++ API

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