02 researchingames bps2011 sloan

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BeyondProgrammableShadingCourse,ACM

Saturday, August 27, 2011


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Research in GamesPeter-Pike Sloan, Disney Interactive Studio




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X - Video

First Playable

Vertical Slice

Concept

Pre-production

Full Production



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Concept




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X Video




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X Movie



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What are the big features?

Power plays (large scripted destruction)

Big explosions/smoke/etc.



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Pre-Production




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Ship Launch Play Through Movie



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Nail down workflows for game

Powerplays

Baking tech

Color grading



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People get pulled onto other projects



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Ship date can move



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Ship date can move (in or out, to hit fiscal year/quarter deadline, m

date changes, budget changes, etc.)



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Game cancelled



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Game cancelled Studio closed



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Researchers Perspective




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Great talks at I3D 2011

Chris Hecker, A Game Developers Wishlist foResearchers

Dan Baker, From Papers to Pixels: How resea

finds (or often doesnt) its way into Games



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Talk to game developers

Play games, go to GDC

Do a production internship

Release code

Use game assets

Think about (dont eliminate) artists



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Crazy vertex density

Single object Heavy

256k RTT

48 MB PRT*

Static



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Crazy vertex density

Really Heavy Only 147 MB!

4 hours to compress

Large signal, highsample rates



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Indirect lighting

Iteration time Enlighten

Brad and Kennys

talk thursday



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Really cool paper

Not great intuitionbehind parameters



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Intuitive parameters

Still based onMarschner

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Several blind alleys

google: friends dont let friends implement PS Failure modes/conditions

Shadow volumes

High variance in performance

Cascaded techniques



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System on a chip dominant in mobile/tab

space, gaining momentum in laptops Are current graphics APIs suited?

Assume high latency between CPU/GPU

Should this be an evolutionary path?



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Programming to the memory hierarchy

Assume moderate bandwidth and high latenc Memory in same package, physically bon

Very wide busses, less distance -> less latenc

Wheel of re-incarnation?



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Tom Williams + Black Rock

Steve Marschner, Iman Sadeghi (images

Naty Hoffman, Rob Nelson, Dave Hart,

Ladislav Kavan, Aaron Lefohn (feedback



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Screen Space Classification for Efficient Deferred Shading, SIGGRAPH Talk 2010, H

Knight, Moore, Parrish and Ritchie

Light Scattering from Human Hair Fibers, SIGGRAPH 2003, Marschner, Wann Jense

Cammarano, Worley and Hanrahan

An Artist Friendly Hair Shading System, SIGGRAPH 2010, Sadeghi, Pritchett, Wann

and Tamstorf

Bi-Scale Radiance Transfer, SIGGRAPH 2003, Sloan, Liu, Shum and Snyder

All-Frequency Precomputed Radiance Transfer for Glossy Objects, EGSR 2004, Liu

Shum and Snyder

Modular Radiance Transfer, Cond. SIGGRAPH ASIA 2011, Bradford J. Loos, Lakulis

Kenny Mitchell, Derek Nowrouzezahrai, Wojciech Jarosz, Peter-Pike Sloan


02 researchingames bps2011 sloan

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