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https://github.com/ec-/Quake3e

Improved Quake III Arena engine
https://github.com/ec-/Quake3e

opengl quake3 qvm vulkan

Last synced: 18 days ago
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Improved Quake III Arena engine

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README 

        
# Quake3e



[![build](../../workflows/build/badge.svg)](../../actions?query=workflow%3Abuild) * Discord server



This is a modern Quake III Arena engine aimed to be fast, secure and compatible with all existing Q3A mods.

It is based on last non-SDL source dump of [ioquake3](https://github.com/ioquake/ioq3) with latest upstream fixes applied.



Go to [Releases](../../releases) section to download latest binaries for your platform or follow [Build Instructions](#build-instructions)



*This repository does not contain any game content so in order to play you must copy the resulting binaries into your existing Quake III Arena installation*



**Key features**:



* optimized OpenGL renderer

* optimized Vulkan renderer

* raw mouse input support, enabled automatically instead of DirectInput(**\in_mouse 1**) if available

* unlagged mouse events processing, can be reverted by setting **\in_lagged 1**

* **\in_minimize** - hotkey for minimize/restore main window (win32-only, direct replacement for Q3Minimizer)

* **\video-pipe** - to use external ffmpeg binary as an encoder for better quality and smaller output files

* significally reworked QVM (Quake Virtual Machine)

* improved server-side DoS protection, much reduced memory usage

* raised filesystem limits (up to 20,000 maps can be handled in a single directory)

* reworked Zone memory allocator, no more out-of-memory errors

* non-intrusive support for SDL2 backend (video, audio, input), selectable at compile time

* tons of bug fixes and other improvements



## Vulkan renderer



Based on [Quake-III-Arena-Kenny-Edition](https://github.com/kennyalive/Quake-III-Arena-Kenny-Edition) with many additions:



* high-quality per-pixel dynamic lighting

* very fast flares (**\r_flares 1**)

* anisotropic filtering (**\r_ext_texture_filter_anisotropic**)

* greatly reduced API overhead (call/dispatch ratio)

* flexible vertex buffer memory management to allow loading huge maps

* multiple command buffers to reduce processing bottlenecks

* [reversed depth buffer](https://developer.nvidia.com/content/depth-precision-visualized) to eliminate z-fighting on big maps

* merged lightmaps (atlases)

* multitexturing optimizations

* static world surfaces cached in VBO (**\r_vbo 1**)

* useful debug markers for tools like [RenderDoc](https://renderdoc.org/)

* fixed framebuffer corruption on some Intel iGPUs

* offscreen rendering, enabled with **\r_fbo 1**, all following requires it enabled:

* `screenMap` texture rendering - to create realistic environment reflections

* multisample anti-aliasing (**\r_ext_multisample**)

* supersample anti-aliasing (**\r_ext_supersample**)

* per-window gamma-correction which is important for screen-capture tools like OBS

* you can minimize game window any time during **\video**|**\video-pipe** recording

* high dynamic range render targets (**\r_hdr 1**) to avoid color banding

* bloom post-processing effect

* arbitrary resolution rendering

* greyscale mode



In general, not counting offscreen rendering features you might expect from 10% to 200%+ FPS increase comparing to KE's original version



Highly recommended to use on modern systems



## OpenGL renderer



Based on classic OpenGL renderers from [idq3](https://github.com/id-Software/Quake-III-Arena)/[ioquake3](https://github.com/ioquake/ioq3)/[cnq3](https://bitbucket.org/CPMADevs/cnq3)/[openarena](https://github.com/OpenArena/engine), features:



* OpenGL 1.1 compatible, uses features from newer versions whenever available

* high-quality per-pixel dynamic lighting, can be triggered by **\r_dlightMode** cvar

* merged lightmaps (atlases)

* static world surfaces cached in VBO (**\r_vbo 1**)

* all set of offscreen rendering features mentioned in Vulkan renderer, plus:

* bloom reflection post-processing effect



Performance is usually greater or equal to other opengl1 renderers



## OpenGL2 renderer



Original ioquake3 renderer, performance is very poor on non-nvidia systems, unmaintained



## [Build Instructions](BUILD.md)



## Contacts



Discord channel: https://discordapp.com/invite/X3Exs4C



## Links



* https://bitbucket.org/CPMADevs/cnq3

* https://github.com/ioquake/ioq3

* https://github.com/kennyalive/Quake-III-Arena-Kenny-Edition

* https://github.com/OpenArena/engine