Gi = global illumination

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GI = Global Illumination

Text of Gi = global illumination

  • 1. Why GI?

2. Why GI? 3. What is GI?Direct lightingIndirect lightingWhat is GI? 4. What is GI?Only Direct LightingDirect + Indirect 5. What is GI?ONOFF 6. What is GI?Direct lighting sucksDirect + Indirect lighting coolWhat is GI? 7. GI in 99 Lines of C++ 8 spp 13 sec200 spp 5 min1000 spp 25 min25k spp 10.3 h2.4 GHz Intel Core 2 Quad, 1024 x 768, by Kevin Beason 8. GI in 99 Lines of C++Brute force really heavy 9. Hemisphere LightningMotoGP 10. Hemisphere LightningRadiosity Map 11. Hemisphere LightningFast & simpleToo simpleHemisphere Lighting 12. LightmapsMirror's Edge 13. Lightmaps 14. LightmapsOnly static objects 15. Light ProbesKillzone 2 16. Light Probes 17. Light Probes 18. Light Probes 19. Light ProbesNo dynamic lightsNo self-illumination of dynamic objects 20. Light Propagation Volumes 21. Light Propagation Volumes 22. Light Propagation Volumes 23. Light Propagation Volumes 24. Light Propagation Volumes No propagation 25. Light Propagation VolumesAfter 4 iterations 26. Light Propagation VolumesAfter 6 iterations 27. Light Propagation VolumesAfter 8 iterations 28. Light Propagation Volumes 29. Light Propagation Volumes 30. Light Propagation VolumesDynamic lightsNo indirect shadowsLight Propagation Volumes 31. Voxel Cone TracingAlgorithm Voxelize the geometryConstruct sparse voxel octree (SVO)Inject direct lighting into the octreePropagate radianceGather radiance by cone tracing 32. Voxel Cone Tracing 33. Voxel Cone TracingVoxelization 34. Voxel Cone Tracing Sparse Quad-tree 35. Voxel Cone TracingSparse Voxel Octree 36. Voxel Cone Tracing 37. Voxel Cone TracingLight injection 38. Voxel Cone Tracing Filtering up 39. Voxel Cone Tracing Voxel Cone Tracing 40. Voxel Cone Tracing 41. Voxel Cone Tracing 42. Voxel Cone Tracing37 ms32 ms14 min 43. Voxel Cone TracingDynamic lights & objectsShadow castingHuge amount of memory 44. Check out more knowledge sharing here: Slideshare - https://www.slideshare.net/Sperasoft/ SpeakerDeck - https://speakerdeck.com/sperasoft GitHub - http://github.com/sperasoftLearn more about Sperasoft: Company site - http://www.sperasoft.com/ On Facebook - https://facebook.com/sperasoft On Twitter - http://twitter.com/sperasoft