Rendering Techniques in Gears of War 2 - Unreal Engine

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About Epic Epic Games Games • 19th year of business • 110 employees in NC and still hiring • Creators Creators of Unreal Unreal Engine 3 • Shipped Gears of War 2 • Shi Shipped Shi d Unreal U lT Tournament t3 3 – Xbox 360, PC and PS3 • External studios in Poland, Shanghai, and Utah
About Gears of War 2 • 93% Metacritic rating • Over 4 million copies sold • 117 award d wins i and d nominations • Shipped in two years by Gears 1 team
Page 1: Rendering Techniques in Niklas Smed
Page 5 and 6: Topics p Niklas Smedberg • Gore t
Page 8 and 9: • Goals: Gore Goals - No seams be
Page 10 and 11: Locust gore mesh • Picture: Locus
Page 12 and 13: Elaborate gore mesh • Picture: Ub
Page 14 and 15: Data-driven Data driven Gore • Se
Page 16 and 17: Data-driven ata d e Go Gore, e, 2 o
Page 18 and 19: Scripted Gore • Set up p in ggame
Page 20 and 21: Data-driven Data driven gore #1 •
Page 22 and 23: • Screenshot: Meatshield 3 Data
Page 28 and 29: • Movie: Chainsaw Scripted gore
Page 30 and 31: Blood Techniques • Many y differe
Page 32 and 33: Decal Features • Decal system y m
Page 34 and 35: Decal Optimizations • One drawcal
Page 36 and 37: Blood Smears, , 1 of 4
Page 38 and 39: Blood Smears, , 3 of 4
Page 40 and 41: Screen-space Screen space Blood Eff
Page 42 and 43: Surface‐space Surface space Blood
Page 44 and 45: Fluid Simulation • Using g our Un
Page 46 and 47: Blood Techniques • Movie: Riftwor
Page 48 and 49: Blood Techniques • Movie: Riftwor
Page 50 and 51: About Daniel Wright • Joined Epic
Page 52 and 53:
• Gore techniques q • Blood tec
Page 54 and 55:
Background g • Hundreds of static
Page 56 and 57:
Background g - Some of these are do
Page 58 and 59:
Background • Hundreds of static l
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Incident Lighting Representation
Page 62 and 63:
Creating the Light Environment •
Page 64 and 65:
Applying the Light Environment •
Page 66 and 67:
Page 68 and 69:
Page 70 and 71:
Dominant light Character Shadowing
Page 72 and 73:
In Conclusion • Combine relevant
Page 74 and 75:
Topics p Daniel Wright • Gore tec
Page 76 and 77:
Screen Space Ambient Occlusion RRev
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Screen Space Ambient Occlusion RRev
Page 80 and 81:
Baseline • 720p, 16 occlusion sam
Page 82 and 83:
• Motivation Screen Space Ambient
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• Reduce neighbor samples Occlusi
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• Downsized render target - AO is
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• Downsized render target Down sa
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Results
Page 92 and 93:
Temporal Filter • Filter the occl
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Temporal Filter • Reverse Reproje
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Temporal Filter • Reverse Reproje
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• Static objects Last Frame Tempo
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• Newly Unoccluded pixels New Pix
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Without Temporal Filter
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Temporal Filter • Doesn’t help
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Temporal Filter Gotchas • Accurat
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Computation Masking • Pixels with
Page 110 and 111:
• Distant pixels Computation Mask
Page 112 and 113:
In Conclusion • Use Reverse Repro
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Rendering Techniques in Gears of War 2 - Unreal Engine

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