1 / 14

CS 395: Adv. Computer Graphics

CS 395: Adv. Computer Graphics. This is NPR: Non-Photorealistic Rendering Jack Tumblin jet@cs.northwestern.edu. Big Ideas in NPR. Fine Art. What is the goal of computer graphics? ‘A perfect simulation of light transport’? No... ‘The best picture for every task’ ?. Drawings,

ashely-mullins
Télécharger la présentation

CS 395: Adv. Computer Graphics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CS 395: Adv. Computer Graphics This is NPR:Non-Photorealistic Rendering Jack Tumblin jet@cs.northwestern.edu

  2. Big Ideas in NPR Fine Art • What is the goal of computer graphics? • ‘A perfect simulation of light transport’? No... • ‘The best picture for every task’ ? Drawings, illustrations, paintings... All Great Pictures Optical Images (photos, etc.)

  3. Big Ideas in NPR • What can artists offer us? Can we help them? • Imitation (theft): Simulate existing artistic media • paint, charcoal, pencil, watercolor, marble, • Imitation (theft): Simulate artistic conventions • ‘learn to draw’ books • machine learning on works of art • analysis of working artists • What can we learn from the human visual system?

  4. Simulated Watercolor (1997) Simulate paper, water, fluid diffusion/soaking, drying,... “Computer Generated Watercolor” Curtis,Anderson, Seims, Fleischer,Salesin SIGGRAPH`97

  5. Simulated Watercolor Faster: blots/splats...

  6. Pen-And-Ink: Winkenbach et al 1994+

  7. Pencil Simulation: Sousa 2000 Sousa, M. C. and Buchanan, J. W.Observational Model of Graphite Pencil Materials.Computer Graphics Forum, 19(1):27--49, 2000.

  8. Oil Painting Simulation • .

  9. ‘Toon’ Shaders Long history; Levoy’77, ...

  10. NPR Quake Shaders (real time) .

  11. 3D-Guided, Semantic NPR Kowalski et al, “Art-Based Rendering” SIGGRAPH`99

  12. Artistic Styles: Herzmann2000 Machine learning, Image analogies, etc....

  13. Artistic Styles: Herzmann2000 Machine learning, Image analogies, etc....

  14. More NPR Resources • Great on-line surveys / tutorials: Craig Reynolds http://www.red3d.com/cwr/npr/ • Great Book:“Non-Photorealistic Rendering” (2001) Bruce Gooch and Amy Gooch, AK Peters • Great Conference:ACM NPAR: Non-Photorealistic Animation and Rendering • Great Online Demos: Google finds most of them... • Great Papers: http://citeseer.nj.nec.com/cs

More Related