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Battlefield 4 + Frostbite + Mantle

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Technical talk from the AMD GPU14 Tech Day by Johan Andersson in the Frostbite team at DICE/EA about Battlefield 4 on PC which is the first title that will use 'Mantle' - a very high-performance low-level graphics API being in close collaboration by AMD and DICE/EA to get the absolute best performance and experience in Frostbite games on PC.

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Battlefield 4 + Frostbite + Mantle

  1. 1. Johan Andersson Technical Director Frostbite AMD GPU’14 Tech Day BF4 + FROSTBITE + MANTLE
  2. 2.  Long term relationship & collaboration  Worked together for 9 years  Started with Battlefield 2 back in 2004  Work very closely with multiple AMD teams  Developer relations, technology & driver teams  Focus areas: Quality, performance & robustness  Special features: Eyefinity, Stereo 3D, Crossfire  Special events: BF4 GDC demo – 2x 7990 and 4k @ 60 fps  Regular meetings with AMD hardware architects & key staff  Amazing & fun discussions to adapt & align future hardware & software  One can (and have!) affect GPU hardware design! DICE & AMD
  3. 3.  Our next-generation engine  Mission: Empower game creators and create great games  The platform across Electronic Arts for shooters, RPGs, RTS, racing games and more FROSTBITE OVERVIEW
  4. 4.  15+ games in development! FROSTBITE GAMES
  5. 5.  Levolution BATTLEFIELD 4 - QUICK HIGHLIGHTS
  6. 6.  Levolution  Multiplayer water simulation BATTLEFIELD 4 - QUICK HIGHLIGHTS
  7. 7.  Levolution  Multiplayer water simulation  VFX BATTLEFIELD 4 - QUICK HIGHLIGHTS
  8. 8.  Levolution  Multiplayer water simulation  VFX  Compute shader lighting BATTLEFIELD 4 - QUICK HIGHLIGHTS
  9. 9.  Levolution  Multiplayer water simulation  VFX  Compute shader lighting  Post FX  Bokeh DOF  Subsurface scattering  Velocity motion blur  SSAA BATTLEFIELD 4 - QUICK HIGHLIGHTS
  10. 10.  Optimized for DirectX 11.1 & Radeon GPUs  Been working closely with AMD on performance & quality – CPU & GPU  Microsoft added optimizations on our request to DX11.1 in Windows 8, thx!  64-bit native multi-core executable  32-bit fallback for the 9% that do not have a modern CPU  Frostbite has been parallelized further to run on up to 8 CPU cores  Scalability: From APU to multi-GPU  Optimized both for low-end & high-end  Scalable graphics  Crossfire & Eyefinity BATTLEFIELD 4 - TECH
  11. 11.  An amazing platform with unique strengths  From the lowest-end integrated laptop  To quad-GPU super high-end desktops   PC is in our DNA at DICE  It’s where we come from: Battlefield 1942  We strongly believe in & will continue to support PC as a gaming platform PC
  12. 12.  Performance  Support both the slowest and fastest hardware  Not possible to utilize all CPU cores in DX & GL  Heavy CPU draw, state & resource overhead is holding back complex game scenes & content  Programmability  PC is still stuck in software & memory model of CPU spoon-feeding discrete GPU – no longer required!  CPU/GPU collaboration barely possible  Not all modern GPU functionality is exposed  PC CHALLENGES  Hardware & software abstractions  Necessary to support a rich varied PC hardware ecosystem, but…  Want to adapt our use cases & engine to the capabilities of the hardware – not limit it to the software layer on top of it  Have high-level information in the engine and could do smarter & more efficient decisions than the OS, driver or black box API can  APIs & abstractions evolve too slowly (there are quite a few of them) Limits how we can use modern GPUs & what game worlds we can build
  13. 13.  As a contrast..  Develop only for a single hardware & system configuration  All hardware functionality exposed to developer (almost)  Low overhead OS  Very thin graphics driver  Explicit control over memory  Easier for us to develop & hit our targets with low-level access  Lots of experience now from the next-gen consoles, both based on AMD’s GCN architecture CONSOLES
  14. 14.  Push the PC industry forward & create amazing games  Massive dynamic & immersive worlds with photorealistic visuals  Not be constrained in capabilities due to software or legacy  Need the best of both worlds to fully utilize modern PCs  Console-style access & performance  While keeping scalability and running on tons of different PCs  Required: a different approach to graphics APIs & drivers!  Game engine (Frostbite) takes on large part of responsibility API & driver has today  Driver is a thin abstraction over the hardware  Key aspect: engine has explicit control over (most) memory & abstracted hardware components  Been talking to the graphics vendors for years to solve this… WHAT WE WANT
  15. 15.  An absolute highlight of our long term collaboration with AMD is coming to fruition: Mantle
  16. 16.  Low-level high-performance console-style graphics API for PC!  YAY!  Built by AMD in close collaboration with us at DICE/EA  Direct result of our discussions  Will be cross platform, very important for us  Battlefield 4 is the pilot project & first user of Mantle  Gamers will get the absolute best possible performance & experience out of AMD hardware MANTLE
  17. 17.  Frostbite 3 will render natively with Mantle on Windows  Used instead of DirectX 11 on compatible Radeon GPUs  Being developed right now!  Superb CPU performance  Very low overhead rendering, loading & streaming  Perfect parallel rendering - utilize all 8 CPU cores  Avoid bottlenecking the GPU and the system  Highly optimized GPU usage  Full access to graphics hardware capabilities  Lots of low-level optimizations made possible  Foundation for the future  This is only the beginning…  There are many more games on Frostbite MANTLE IN FROSTBITE
  18. 18.  Launches on October 29th  64 player multiplayer awesomeness  Advanced DirectX 11.1 renderer  Optimized for Radeon GPUs  Great Crossfire & Eyefinity support  In December: Mantle update!  Custom built & heavily optimized rendering pipeline in Frostbite using Mantle  Get the absolute most out of your PC and Radeon GPU  Released as a free & automatic game update  Enjoy! BATTLEFIELD 4
  19. 19.  Super excited about Mantle!  Will share more in the upcoming months  Tons of ideas going forward   Low-latency multi-GPU rendering for VR?  Dynamic game worlds living on the GPU?  …. FUTURE
  20. 20. THANKSTHANKS! Email: repi@dice.se Web: http://frostbite.com Twitter: @repi

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