http://research.tri-ace.com/

2. STAR OCEAN 4 : Flexible Shader Management and Post-processing Yoshiharu Gotanda Research and Development Dept., tri-Ace Inc.

10. Video (Dev env.)

22. Shader node example – simple Specular Map Texture Normal Map Texture Albedo Texture Ashikhmin BRDF Shader

23. Shader node example – artistic Color Texture for albedo Tangent space normal map texture Specular color texture Phong BRDF Shader Fresnel Shader Output Diffuse Color Gray scaled color output from Fresnel Shader

24. Shader node example - background Parallax Occlusion Map Shader Output Normal Dual paraboloid environment map texture Color map for albedo with modified UV Blinn-Phong BRDF Shader

25. Shader node example - effect Animated UV Offset Blending 2 textures UVs are shifted based off normal map

26. Shader node example – detail map LOD factor computation node Base Normal Map Texture Normal Map blended with three other textures using LOD factor Albedo Texture

37. Example All Adaptors are shadow maps in this shader Many shaders using 5 Shader Adaptors

52. Bokeh Effect (DOF)

54. Bokeh – Low profile 1/16 & 1/64 Reduced buffer 33 tap GPU 1.3[ms]

55. Bokeh – Standard profile 1/4 & 1/16 Reduced buffer 21 tap GPU 3.1[ms]

56. Bokeh – Reference profile Use full size buffer 227 tap GPU 246.6[ms]

61. Blend vs. Per-pixel blur Blend Per-pixel (21taps)

62. Bokeh diagram Output (Gathered during Tonemapping Process) Blend Mipmapped color buffers Reduced color buffer Fixed tap count blur on Large Reduced Buffer High tap count blur on Small Reduced Buffer Create masks for all the bokeh shaders from depth buffer

63. Bokeh diagram (detail) Output (Gathered during Tonemapping Process) Fixed tap count blur and blend with SRB on large reduced buffer High tap count blur on Small Reduced Buffer (SRB) Create mipmap src. (put mask to A) Generate A lot of Masks (A,R,G,B)x2 from Depth Dilate Front Mask Create Half Reduced Buffer

71. Comparison with Real Photo Our simulation Real photo F2.8 F3.2 F3.5 F4 F5.6 A light source of 5mm in diameter at a distance of 3m from the camera. The focus distance is 1.5m, with 70-200mm F2.8 lens at 200mm

72. Comparison with Real Photo Our simulation Real photo F8 F11 F16 F22 F32

77. Struct LensParameter struct LensParameter { string szName[64]; u8 nAppertureAngleNumber; f32 fDesignedFilmSize; f32 fMinFStop; f32 fMaxFStop; f32 fFStopZoom; f32 fMinFocusDepth; f32 fMinProjectionDistance; f32 fMaxProjectionDistance; // ----------------- Vignetting Distance // || --------------- <-----------> // || ---------------- | // || || | || | // Entrance || Open Ap ||Vignetting|| | // Size || Size ||Size || | // || || | || | // || ---------------- | // || --------------- <-Frange Back -> // ----------------- ^Iris // <- Iris Distance -> // <------------ Entrance Distance ------------> f32 fEntranceDistance; f32 fEntranceSize; f32 fApertureDistance; f32 fOpenApertureSize;

79. Comparison of view angle When focusing on a closer point, focal length gets longer

80. Comparison of view angle

82. Motion Blur 35mm 1/60sec F14

86. Without motion blur

87. With motion blur

88. Tonemapping & filters

92. Film profile comparison Original (used in the game) Company K, Reversal Company F, Reversal

93. Film profile comparison Original (used in the game) Company K, Reversal Company K, Negative

94. Film profile comparison Company F, Negative Company C, Digital

95. Film profile comparison Original (used in the game) Company K, Reversal No film profile (Reinhard)

96. Film profile comparison (all) Original K, Rev. K, Neg. F, Rev. F, Neg. C, Digital Reinhard

99. Results of grain Digital noise Film grain Enlarged and brightened in Photoshop (Digital camera profile)

103. Tonemapping flow Gather Buffers (DOF, Glare) Pre matrix transform (Spectral film characteristic) Added Noise (Film grain, C-MOS noise ) Tex fetched transform (Film curve, Tone curve, gamma …) Matrix transform (chroma correction, …) Dithering Output to LDR buffer Input HDR buffers

105. Results without post-process with post-process (high quality) with post-process (original) 85mm F6.3

106. Results without post-process with post-process (high quality) with post-process (original) 50mm F2.8

107. Results without post-process with post-process (high quality) with post-process (original) 24-70mm F12 58mm