Real-time Animation and Real-time Animation and Rendering of Ocean - PowerPoint PPT Presentation

Real-time Animation and Real-time Animation and Rendering of Ocean Whitecaps Rendering of Ocean Whitecaps Jonathan Dupuy, Eric Bruneton INRIA Grenoble Rhône-Alpes, Université de Grenoble et CNRS, Laboratoire Jean Kuntzmann Université de Lyon, CNRS Université Lyon 1, LIRIS, UMR5205, F-69622, France

Whitecaps Whitecaps spume + foam streaks foam streaks + surface foam surface foam + bubble cloud bubble cloud spume 2

Deep Water Breaking Waves Deep Water Breaking Waves Plunging breaker Spilling breaker 3

Motivation Motivation Real time Photographs Movies 4

Ocean Rendering: Wave Models Ocean Rendering: Wave Models Trochoidal waves Fourier transform [Tessendorf 2001] [Hinsinger et al. 2002] [Tessendorf 2001] [Hinsinger et al. 2002] ocean surface = horizontally and vertically undulated plane ocean surface ocean plane displacement 5

Ocean Rendering: Lighting Ocean Rendering: Lighting [Bruneton et al. 2010] [Bruneton et al. 2010] mean position position + mean normal normal + slope variance variance 6

Ocean Rendering: Whitecaps Ocean Rendering: Whitecaps Particle based Empirical models [Chentanez and Müller 2011] [Darles et al. 2007] [Darles et al. 2007] [Chentanez and Müller 2011] whitecaps whitecaps sim. domain no whitecaps no whitecaps low quality no control / slow 7

Objective Objective ● Extend Bruneton's lighting model to account for whitecaps – Any viewpoint from ground to space – Seamless transitions from geometry to BRDF – Real time ● Context – Deep water waves – Gaussian heights and slopes – Spilling breakers only (no overturning) 8

Ocean Lighting Ocean Lighting [Bruneton et al. 2010] [Bruneton et al. 2010] ● ● Whitecap radiance depends on amount of breaking waves 9

Breaking Waves Breaking Waves ● Use surface tension – Proportional to jacobian of horizontal displacements illustrative only wave profile wave profile 10

Breaking Waves Breaking Waves ● We use 11

Breaking Waves Breaking Waves ● We use ● depends on Gaussian functions parameters can be computed analytically for trochoids or through hardware mipmapping for Fourier waves 14

Ocean Lighting Ocean Lighting [Bruneton et al. 2010] [Bruneton et al. 2010] ● ● Whitecap radiance depends on amount of breaking waves 15

Ocean Lighting Ocean Lighting ● ● Whitecap radiance depends on amount of breaking waves 16

Results: Quality Results: Quality real time photographs 17

Results: Control Results: Control (same surface) 18

Results: Scalability / Real Time Results: Scalability / Real Time NVidia GeForce 560Ti 19

Results: Limitations Results: Limitations ● Reflectance fluctuations only – No impact on geometry ex: no plunging breakers ● No decay – Whitecap can last several seconds ● Analytical surface – Repetitive artifacts on periodic surfaces 20

Conclusion Conclusion ● Ocean scenes with whitecaps in real time – Scalable performance – Controlable – Good quality ● Future work – Decay – Richer whitecap shading model (currently Lambertian / no visibility) 21

Real-time Animation and Real-time Animation and Rendering of Ocean Whitecaps Rendering of Ocean Whitecaps Jonathan Dupuy, Eric Bruneton INRIA Grenoble Rhône-Alpes, Université de Grenoble et CNRS, Laboratoire Jean Kuntzmann Université de Lyon, CNRS Université Lyon 1, LIRIS 22

Projected Grid Projected Grid ● Automatic geometrical LOD eye reprojected vertex reconstructed surface ocean plane 23

Projected Grid Projected Grid ● Automatic geometrical LOD eye reprojected vertex reconstructed surface ocean plane 24

Erf: Approximation Erf: Approximation erf(x) our approximation 25

Erf: Error Erf: Error max error: 0.00012 26

Real-time Animation and Real-time Animation and Rendering of Ocean - PowerPoint PPT Presentation

Real-time Animation and Real-time Animation and Rendering of Ocean Whitecaps Rendering of Ocean Whitecaps Jonathan Dupuy, Eric Bruneton INRIA Grenoble Rhne-Alpes, Universit de Grenoble et CNRS, Laboratoire Jean Kuntzmann Universit de

Chapter 8 - Animation Animation before the time of 3DCG Animation techniques

animation 1 animation shape specification as a function of time 2 animation representation

Animation structure and content of the internal of changes over time? representation. Why?

Animation Presented by Sancho McCann Animation Is animation useful? Why?

Week 1 - Friday What did we talk about last time? Graphics rendering pipeline

Real-Time Visualization 1 Real-Time Volume Rendering Stefan Bruckner Introduction

Ad Advanced Computer Graphics d C G hi CS 563: Real Time Ocean Rendering [Real Time

Real-time 3D Eyelids Tracking From Semantic Edges Quan Wen, Feng Xu, Ming Lu, Jun-Hai Yong

CS324e - Elements of Graphics and Visualization Animation in Java3D Adding Animation

Network Layout Ma Maneesh Agrawala CS 448B: Visualization Fall 2020 1 Last Time: Animation 2

DESIGN OF A REAL-TIME ANIMATION PROGRAM DEMO MODEL-VIEW-CONTROLLER DESIGN canonical.cpp

Real- Real -Time Systems Time Systems Real- -Time Systems Time Systems Real

Real-Time Rendering (Echtzeitgraphik) Michael Wimmer wimmer@cg.tuwien.ac.at Walking down the

1 Steps in Creating Animation Secondary Actions Sequences (1 of 3) Animation part that does

RTOS Real-Time Operating Systems Chenyang Lu OS Support for Real-Time Real-Time OS

Real-time Performance-Based Facial Animation Mark Pauly Eurographics 2012, Cagliari, Italy

Outline 1. Principles of Traditional Animation Applied to Computer Animation Animation

Real Real- -Time Systems Time Systems Designing a real- Designing a real -time system time

DLSS 2.0 IMAGE RECONSTRUCTION FOR REAL-TIME RENDERING WITH DEEP LEARNING Shiqiu (Edward) Liu,

Animation Ats Kurvet What is animation? Where to use animation? How it works... Vision

Animation Overview Overview Traditional Animation Traditional Animation Keyframe Animation

Real-time raise alerts Real-Time Real-time with historical Dashboard Correlate

Computer Animations Brief History of Animation in Games and Film CGI and RTR Rendering

Chapter 3 : Principles of Animation Animation Animate literally means bring to