The_Technology_Behind_the_Elemental_Demo_16x9_(2)

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Diffuse Sampling 1/2 � Similar to Final Ga<strong>the</strong>ring [Jensen02] � Problem: � Few samples for good performance � Enough samples for quality (cone angle) � Well distributed over hemisphere to reduce error � Don’t want noise � Don’t want to blur over normal details � Diffuse is mostly low frequency � Coherency important for efficiency Advances in Real-Time Rendering in 3D Graphics and Games Course
Diffuse Sampling 2/2 Advances in Real-Time Rendering in 3D Graphics and Games Course � Non-interleaved processing of interleaved 3x3 pattern [Segovia06] ………. � 9 well distributed cones in world space � Loop over 9 directions, <strong>the</strong>n XY � Reject samples behind surface normal � Output non interleaved � Compositing Pass: � Recombine non interleaved sub images � Weight by normal and depth � 5x5 filter to account for missing samples � Multiply with Albedo color ………. 5 6 4 5 6 4 8 9 7 8 9 7 2 3 1 2 3 1 5 6 4 5 6 4 8 9 7 8 9 7 ………. 2 3 1 2 3 1 Interleaved ………. Samples on Sphere Non Interleaved
Page 1 and 2: Advances in Real-Time Rendering in
Page 3 and 4: Overview � Real-time Demo � Gra
Page 5 and 6: Real-Time Demo Advances in Real-Tim
Page 7 and 8: Working on Unreal Engine 4 � This
Page 9 and 10: Voxel Cone Tracing Concept � Volu
Page 11 and 12: Using Voxel Cone Tracing for GI 2/2
Page 13 and 14: Sparse Voxel Octree � Mapping fun
Page 15 and 16: Voxelization 1/2 Advances in Real-T
Page 17 and 18: Voxel Lighting � Compute shading
Page 19 and 20: The Cone Trace function � � Adv
Page 21: Specular Sampling 2/2 Reference �
Page 25 and 26: Voxel Lighting Examples 2/3 Advance
Page 27 and 28: Shading Advances in Real-Time Rende
Page 29 and 30: Deferred Shading Name Format Usage
Page 31 and 32: Gaussian Specular Dot = saturate(do
Page 33 and 34: Specular Comparison Point Light Poi
Page 35 and 36: New post processing graph � Graph
Page 37 and 38: SSAO sampling Advances in Real-Time
Page 39 and 40: SSAO Example SSAO (Depth only) Adva
Page 41 and 42: Image Based Lens Flares 1/2 Advance
Page 43 and 44: IB Lens Flares Examples Advances in
Page 45 and 46: Eye Adaptation Advances in Real-Tim
Page 47 and 48: GPU accelerated particles Advances
Page 49 and 50: Particle Curves � Concept � 1D
Page 51 and 52: Shadow receiving Translucency Advan
Page 53 and 54: 1 Million Particles Advances in Rea
Page 57 and 58: References 1/2 � [Crassin11] Inte
Page 61 and 62: Bloom 1/2 [Kawase04] � Goal: Larg
Page 63 and 64: Bloom Example Bloom with single Gau
Page 65 and 66: GBuffer Blur 2/2 Advances in Real-T
Page 67 and 68: SSS Material Example unshadowed Adv
Page 69 and 70: Voxel Lighting Examples 3/5 disable
Page 71: Voxel Lighting Examples 5/5 Advance

The_Technology_Behind_the_Elemental_Demo_16x9_(2)

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