739130e5e5b35c3aa4e851b4f6aa7219.ppt
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FXT 1™: Advanced Texture Compression
Agenda —Corporate Overview —Technology Overview — 3 dfx Technology Innovation: FXT 1 —Conclusion
We Are. . . corporate overview — The most recognized PC graphics brand* — The number one shipping retail graphics product** — The number one fastest growing company in Silicon Valley*** — A branded technology company with worldwide distribution — A vertically integrated company providing complete graphics solutions — A leading supplier of integrated 2 D, 3 D and video graphics technology * Constat Consumer Research Q 1 1999 ** PC Data ***SJ Mercury News
A Worldwide Organization corporate overview — World-class manufacturing and distribution facilities around the world — Seattle, WA — Richardson, TX — Belfast, Ireland — Tokyo, Japan — San Jose, CA — Philadelphia, PA — Paris, France — Beijing, China — Seoul, Korea — Austin, TX — Juarez, Mexico — London, England — Fort Collins, CO Worldwide Headquarters: San Jose, CA
A Little History. . . STB Systems Acquisition Approved corporate overview 3 dfx Founded Plus Voodoo 3 Introduced Launching Largest Voodoo 2 Marketing Introduced Campaign in Developer 3 D Graphics Program Industry 1994 1995 Voodoo Graphics 1996 1997 IPO 1998 1999 Voodoo 3 FXT 1 Introduc Voodoo 3500 TV Introduced ed Banshee Introduced T-Buffer Introduced
Y 3 dfx Model for Success IN NO CONTENT — Evangelizing and Partnering with Key Software Partners G World-Class Manufacturing, Distribution & Support D CH N TE A — Substantial R&D investment — Marketing Programs R — Industry-Leading Features & Performance — Retail Branding B LO G corporate overview
What is a 3 dfx Graphics Accelerator? 3 D Content corporate overview General-Purpose CPU 3 D Image Quality and Digital Effects Engine General-purpose horsepower “Something for everyone” Productivity applications are done here The 3 dfx graphics subsystem renders 3 D images and adds special effects Consumers buy 3 dfx accelerators for cool special effects and stunning image quality Real-time special effects similar to those done by Digital Hollywood are done here 3 dfx closes the gap between real-life imagery and computer-generated graphics Display
Technology Overview
Our Technology Vision technology vision —Closing the gap between Digital Hollywood and the PC —Recreating reality for the ultimate visual experience —Capturing the subtleties of light, color, and texture —Deliver these technologies: m With real-time interactivity and frame rates • Frame rate is still King m At consumer-friendly prices
3 dfx Value Proposition technology vision — 3 D is “unbounded” — 3 dfx delivers what the general-purpose CPU can’t: m High-quality 100 BOPs and Beyond digital effects at 60 fps require more horsepower than a mainstream CPU will deliver for many years Pentium III Pentium Word Excel Web Audio Modem DVD 3 D
3 dfx Breakthroughs for Mainstream PCs technology vision 3 dfx delivers 3 D realism to affordable, mainstream PCs 1999 T-Buffer & FXT 1 1998 Voodoo 2 & 3 1997 Voodoo Graphics RGBA Rendering & frame buffer Real-time perspective correct texture-mapping 30 Hz 640 x 480 Multitexturing Trilinear Mip-mapping Detail Texturing Projected Texturing Triangle Setup 60 Hz 1024 x 768 Full-scene AA (Real-time) Cinematic Effects 85 Hz 1280 x 1024 Free, open source texture compression Future Real-time Photorealism: Recreate Reality on the Consumer PC Platform
Introducing FXT 1™: Advanced Texture Compression
FXT 1 : Texture Compression What is it? technology innovation —Next-generation advanced texture compression technology —Open source —Encoding and decoding tools and source code for compression of textures for 3 D objects —Free
FXT 1 : Texture Compression technology innovation Solving the problems of limited storage and bandwidth available for texturing — Storage: Reduces the amount of memory required to store a given texture up to 8: 1 m Higher resolution textures can now be utilized — Bandwidth: Reduces the amount of memory bandwidth required for texturing m Dramatic fill-rate performance can be realized
FXT 1 : Texture Compression Benefits technology innovation —No perceptible loss in image quality —Enables use of very high-resolution textures —Decreases memory storage requirements —Decreases memory bandwidth requirements —Maximizes available memory bandwidth
FXT 1 : Texture Compression Benefits technology innovation —Increases total number of textures available for rendering m Store up to 8 x number of compressed textures in same space that used to be required for just one —Enables use of higher resolution textures for better image quality m Uncompressed 2048 x 2048 32 bpt texture requires 16 MB memory (almost unusable on current hardware) compared 2 MB when FXT 1 compressed
FXT 1 : Texture Compression Benefits technology innovation —Permits use of more textures per polygon for advanced effects m FXT 1 texture compression makes more bandwidth available m More textures can be used to render a given object allowing for effects like bump mapping, light maps, detail textures, etc.
FXT 1 : Texture Compression Benefits technology innovation —Lowers bandwidth requirements for better fill rate performance m Increases number of texels fed to raster engine m Increases fill rate m Increases frame rates
FXT 1 : Texture Compression How does it work? technology innovation — Encoding: m Divides image up into multiple 4 x 4 or 4 x 8 texel blocks m Individual texel blocks encoded using one of four different algorithms to maximize image quality m Results in 4 bit-per-texel storage and bandwidth requirements m Compressed textures can be encoded during installation, when a scene loads, or stored
FXT 1 : Texture Compression How does it work? technology innovation — Decoding: m Compressed textures are stored natively in system memory or local frame buffer memory m Decompression is performed by 3 D hardware accelerator during run-time only when the compressed texture is used for rendering m Each texel block includes a 2 -bit field used to identify which of the four different compression algorithms is used
FXT 1 : Texture Compression How does it look? technology innovation Uncompressed Image 24 bits-per-texel FXT 1 Compressed Image 4 bits-per-texel
FXT 1 : Texture Compression How small can the textures get? technology innovation
FXT 1 : Texture Compression technology innovation What FXT 1 delivers that other texture compression doesn’t —Open Source format —Cross Platform Support m Windows, Macintosh, Linux and Be. OS —Includes free tools for encoding and decoding m No royalty or licensing fees for content developers or independent hardware vendors
FXT 1 : Texture Compression technology innovation What FXT 1 delivers that other texture compression doesn’t —Highest possible image quality m Multiple algorithms used for every image to deliver most precise reproduction of original artwork —Best compression ratio for textures with more than single bit alpha m FXT 1 uses 4 bpt compression for textures even with multi-bit Alpha channels -reduces storage requirements by 1/3 —Free
FXT 1 : Texture Compression How does it compare to S 3 TC ? technology innovation Single algorithm Up to four different algorithms Original Image S 3 TC FXT 1 retains more detail than S 3 TC by using four different encoding algorithms for each image. This contrasts with only one algorithm used by S 3 TC. FXT 1
FXT 1 : Texture Compression How does it compare to S 3 TC ? technology innovation With 4 different techniques used to compress each image, FXT 1™ provides the most accurate image reproduction as measured by Root Mean Square error of each encoding algorithm
technology innovation Conclusion 3 dfx Proprietary and Confidential
FXT 1 : Texture Compression Conclusion conclusion —Free —Open Source tools and source code —No license or royalty fees for Developers and IHV’s —Allows developer to innovate with higher quality and/or faster compression for titles —Delivers highest possible image quality for compressed textures
FXT 1 : Texture Compression Conclusion conclusion —Maximizes fill rate by making texture data transfer more efficient —Enables use of more textures at higher resolutions to create the most visually stunning 3 D content —Allows for more textures per object and per title for advanced effects —Supports cross platform - all operating systems and API’s


