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

Carmack's Reverse In Doom 3 Has Work-Around

Gaming

Published on 18 November 2011 06:40 AM EST
Written by Michael Larabel in Gaming
15 Comments

It looks like the patent issue with the open-source Doom 3 game won't severely delay the push of this code to the public. John Carmack has already worked around the legal issue within the id Tech 4 engine.

It was only three days ago that this patent issue came to light and was delaying the push of this open-source code, but yesterday Carmack announced he had a workaround in place for the legal issue surrounding Carmack's Reverse / the stencil buffer implementation of shadow volumes patented by Creative Labs.

The kicker? The workaround for this patent amounts to four lines of new code and two lines of changed code.

Yesterday Carmack had tweeted, "this demonstrates the idiocy of the patent -- the workaround added four lines of code and changed two."

Hopefully this workaround won't severely hamper the performance or reduce the image quality even more than what it's at now in the Mesa/Gallium3D drivers. See yesterday's benchmarks of Doom 3 on Mesa/Gallium3D to see how the game is performing and looking when using the open-source Intel, AMD/ATI, and NVIDIA Linux graphics drivers.

Should there not be any further issues with the Doom 3 / id Tech 4 code, hopefully it will be pushed soon.

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. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  2. Sumo's Omni Gets Reloaded
  3. AMD A10-7800 & A6-7400K APUs Run Great On Linux
  4. Radeon Gallium3D Is Running Increasingly Well Against AMD's Catalyst Driver
Latest Linux Articles
  1. Radeon Graphics Yield Mixed Results With Linux 3.17 Kernel
  2. AMD's RadeonSI Driver Sped Up A Lot This Summer
  3. Intel's Latest Linux Graphics Code Competes Against OS X 10.9
  4. Intel Sandy Bridge Gets A Surprise Boost From Linux 3.17
Latest Linux News
  1. Intel Bay Trail Performance With Linux 3.16/3.17 & Mesa 10.3
  2. EFL Sees A Ton Of Work Following Recent v1.11 Release
  3. ARM Talks Up Wayland For Mali
  4. GNOME/GTK+ Human Interface Guidelines Updated
  5. Robocraft Is Rolling Over To Linux
  6. The Widely-Criticized New Commercial Linux Distro Is Now On Kickstarter
  7. Wayland & Weston 1.6 Alpha Released
  8. A New First-Person Mystery Game Might Be Coming To Linux
  9. Patch By Patch, LLVM Clang Gets Better At Building The Linux Kernel
  10. VC4 Gallium3D Driver Now Handles X With GLAMOR
Latest Forum Discussions
  1. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  2. OSS radeon driver for A10-7850K (Kaveri)
  3. Could be avoid to use flash for show the benchmark on the articles?
  4. Systemd 216 Piles On More Features, Aims For New User-Space VT
  5. American Citizens running AMOK for food stamps
  6. What Linux Distribution Should Be Benchmarked The Most?
  7. Company I work for is looking to contribute to Open Source projects... but wrongly?
  8. Microsoft vs. Campaign