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Trends More capable hardware Trend towards software-based graphics › GPUs › Larrabee Need fast and flexible software architectures
Existing Ray Tracing Systems Performance gap between flexible and interactive systems Extreme examples › PBRT [Pharr et al. 2004] • Fine-grained abstractions • Highly extensible • Slow › Arauna [Bikker 2007] • High performance • Fixed functionality • Hand-optimized Ideally – both performance and flexibility
Page 1 and 2: RTfact: Concepts for Generic and Hi
Page 3: Trends Hardware trends › Massive
Page 7 and 8: Possible Approaches Manual coding
Page 9 and 10: Possible Approaches Run-time flexi
Page 11 and 12: Requirements Composability › At
Page 13 and 14: Generic Programming Generic algori
Page 15 and 16: Generic SIMD Primitives Parallelis
Page 17 and 18: template Vec3f computeColor(Vec3f&
Page 19 and 20: template Vec3f computeColor(Vec3f&
Page 21 and 22: Algorithms and Data Structures Dat
Page 23 and 24: template // nested element intersec
Page 25 and 26: template // nested element intersec
Page 27 and 28: Rendering Components No shading in
Page 29 and 30: struct Integrator { template struct
Page 31 and 32: Rendering Pipelines Renderer - a t
Page 33 and 34: template class RayTracingRenderer :
Page 39 and 40: Putting It All Together Example ap
Page 41 and 42: Performance packet kd-tree Sponza C
Page 43 and 44: Conclusions and Future Work RTfact

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