XreaL:About

Overview

XreaL is a heavily improved Quake 3 Arena engine. It's bundled with new tools and a demo game that was never finished.

Modern OpenGL 3.2 renderer with all deprecated OpenGL calls removed
Clever usage of vertex buffer objects (VBO) to speed up rendering of everything
Avoids geometry processing each frame using the CPU (worst bottleneck with the Q3A engine)
Renders up to 500 000 - 1 000 000 polygons at 80 - 200 fps on current hardware (DX10 generation)
Optional GPU occlusion culling (improved Coherent Hierarchy Culling) useful for rendering large city scenes
Doom 3 .MD5mesh/.MD5anim skeletal model and animation support
Unreal Actor X .PSK/.PSA skeletal model and animation support
True 64 bit HDR lighting with adaptive tone mapping
Advanced projective and omni-directional soft shadow mapping methods like EVSM
Real-time sun lights with parallel-split shadow maps
Optional deferred shading
Relief mapping that can be enabled by materials
Optional uniform lighting and shadowing model like in Doom 3 including globe mapping
Supports almost all Quake 3, Enemy Territory and Doom 3 material shader keywords
TGA, PNG, JPG and DDS format support for textures
Usage of frame buffer objects (FBO) to perform offscreen rendering effects
Improved TrueType font support that does not require external tools
Linux 64-bit support
Linux sound backend using SDL
.avi recorder from ioquake3 including sound support
Optimized collision detection routines
Support for Omni-bot