1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

OpenGL ES 2.0, GLSL Support For Open Doom 3

Gaming

Published on 17 July 2012 10:12 AM EDT
Written by Michael Larabel in Gaming
3 Comments

There's finally some open-source id Tech 4 / Doom 3 advancements to report on today. Oliver McFadden has released his new OpenGL ES 2.0 renderer with GLSL support for Doom 3.

Oliver McFadden, the developer previously behind the Revenge program for ATI reverse-engineering, previously brought the ioquake3 engine to the Nokia N900 with OpenGL ES 2.0 on the PowerVR SGX graphics core. A few months back he then started on a new GLSL back-end for the idTech4-based Doom 3 open-source engine and OpenGL ES 2.0 and EGL support for this once-popular game.

Oliver McFadden wrote this morning today on the Phoronix IRC channel (#phoronix on freenode.net), "michaellarabel: I've released the Doom 3 ES2.0 code and GLSL shaders (GPLv3.) There are still a few bugs and unimplemented features so it's more for developers at this point..."

The code for McFadden's modified ioDoom3 engine can be found in his idTech4 GitHub repository. This provides initial OpenGL ES 2.0 rendering support and the GL Shading Language (GLSL) renderer back-end.

Oliver additionally said on Phoronix IRC, "the default configuration is to match the Doom 3 ARB2 renderer pixel-for-pixel (i.e. Blinn-Phong) but I've also implemented the Phong shading model...at least as much as possible within the constraints of the existing media; Doom 3's specular maps are really gloss maps so the specularity power is still a fixed value...you could probably get some nice improvements by adjusting the factor based on the surface type (similar to how you have different sound effects for bullet hits)."

In terms of upstream improvements for the ioDoom3 engine, there sadly doesn't appear to be anything particularly exciting going on lately. If you're wanting to find a visually-impressive game to work on right now, it's worth looking at Unvanquished.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  2. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  3. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
  4. 6-Way Winter 2014 Linux Distribution Comparison
Latest Linux News
  1. New 64-bit Linux Kernel Vulnerabilities Disclosed This Week
  2. PostgreSQL 9.4 Brings JSONB & Many Other New Features
  3. That Nasty Linux Kernel Lockup Bug Is Still Unresolved
  4. KDE's Krita Loses Its Main Backer
  5. Inline Data Support Comes To CephFS With Linux 3.19
  6. VC4 Gallium3D Adds DMA-BUF Support, Yields Working DRI3
  7. GNOME Builder Is Still Building Up To A New IDE For Developers
  8. Raspberry Pi's Gallium3D Driver Could Now Run Significantly Faster
  9. CMake 3.1 Brings Windows Additions, Target Compile Feature
  10. KDE Applications 14.12 Released
Latest Forum Discussions
  1. Bench specific mount point
  2. XLennart: A Game For Systemd Haters With Nothing Better To Do
  3. Tool for measuring FPS in games
  4. Need some hand holding with upgrading xserver
  5. Ubuntu Developers Still Thinking What To Do About Adobe Flash Support
  6. Microsoft buying Mojang
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. Premium subscription "login" times out much faster than forum