chapter 6 two-dimensional viewing3map.snu.ac.kr/courses/2013/cg/chap6.pdf · window is mapped to...

Chapter 6 Two-Dimensional Viewing Myung-Soo Kim Seoul National University http://cse.snu.ac.kr/mskim http://3map.snu.ac.kr

Upload: ngoquynh

Post on 12-Mar-2018

241 views

Category:

Documents

1 download

Report

Download

Embed Size (px):

TRANSCRIPT

Chapter 6 Two-Dimensional Viewing

Myung-Soo Kim

Seoul National University

http://cse.snu.ac.kr/mskim

http://3map.snu.ac.kr

Page 2: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

2D Viewing

Page 3: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

2D Viewing Transformation

Clipping Window

Normalized Viewport/Square

Page 6: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Line Clipping

Page 7: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Cohen-Sutherland Algorithm

Page 8: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Liang-Barsky Algorithm

Page 9: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Liang-Barsky Algorithm

Page 10: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Liang-Barsky Algorithm

Page 11: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Nicholl-Lee-Nicholl Algorithm

Page 12: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Comparisons

Page 13: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Nonrectangular Clip Windows

Page 14: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Polygon Fill-Area Clipping

Page 15: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Sutherland-Hodgman Algorithm

Page 16: Chapter 6 Two-Dimensional Viewing3map.snu.ac.kr/courses/2013/cg/Chap6.pdf · window is mapped to viewport coordinates ... clipping-window boundaries. 1010 0010 0110 Clipping Window

Weiler-Atherton Algorithm

CS 450: Computer Graphics Course and Syllabus Overviewweb.cs.sunyit.edu/~realemj/2016spring/cs450_548/slides/CS_450_16... · with clipping volume/window boundaries. ... • Viewport

Window to Viewport Transformation › DOWNLOAD › CGV_MOD2_SHAN… · Window to Viewport Transformation 3/13/2020 1. Viewing •Transformation world screen •Clipping: Removing

Grafika Komputer - evangsmailoa.files.wordpress.com · Mengenal ViewPort dan World Coordinate ... Pemetaan Window dan Viewport Sehingga pemetaan dari world ke viewport menggunakan

Two Dimensional Viewingegspselva.weebly.com/uploads/2/2/0/3/22030800/2d_viewing.pdf · Viewport window-to-viewport transformation. The Viewin g Pipeline 1. Construct the scene in

Cohen Sutherland Line clipping algorithmdl.mcaclash.com/CG_IMP.pdf · Cohen Sutherland Line clipping algorithm This algorithm uses the clipping window as shown in the following figure

Matthias Zwicker Universität Bern Herbst 2016zwicker/courses/computer... · Herbst 2016. Today •Rendering pipeline •Projections •View volumes, clipping •Viewport transformation

2D Coordinate Systems and Drawing. Coordinate Systems Screen coordinate system World coordinate system World window Viewport Window to viewport mapping

CS 543: Computer Graphics Lecture 8: 3D Clipping …web.cs.wpi.edu/~emmanuel/courses/cs543/slides/lecture8.pdfCS 543: Computer Graphics Lecture 8: 3D Clipping and Viewport Transformation

Computer Graphics · window viewport • Note that the window-to-viewport transformation can be inverted Mapping the Viewport Back into the Window . Modeling transformation 3D Viewing

4.1si31_2001 SI31 Advanced Computer Graphics AGR Lecture 4 Projection Clipping Viewport Transformation

3D Viewing. 3D Viewing Transformation Pipeline Modeling Transformation MC WC Normalization Transformation and Clipping NC Viewport Transformation DC PC

Implementing Viewport Tile Extractor for Viewport-Adaptive

Clipping - Princeton University Computer Science · Polygon Clipping • Find the part of a polygon inside the clip window? After Clipping. 18 Sutherland Hodgeman Clipping • Clip

Dr. Scott Schaefer Clipping Lines. 2/94 Why Clip? We do not want to waste time drawing objects that are outside of viewing window (or clipping window)

Windowing & Clipping - PSAU · PDF fileExplain the terms “Window” and “Viewport”. ... In computer graphics terminology, ... the window boundaries, and clip appropriately

5-Viewing-1-hossyllabus.cs.manchester.ac.uk/ugt/2017/COMP27112/lectures/2013/5... · Window Viewport M view U V! We find the matrix M view which transforms the window to the viewport

VIEWPORT MATRIX CLIPPING UNDERSTANDING Z CLIPPING THE RENDERING PIPELINE CLIPPING …tmm/courses/314-16/slides/raster... · 2016-02-12 · Per-vertex attributes Clipping Viewport

Chapter 6 Windowing and clipping Window - The rectangle defining the part of the world we wish to display. Viewport - The rectangle on the raster graphics

Chapter 6 มุมมองใน 2 มิติ (2-D Viewing). 6-1 The Two-Dimensional Viewing Pipeline 6-2 The Clipping Window 6-3 Normalization and Viewport Transformations

Computer Graphics (CS 543) Lecture Clipping, …web.cs.wpi.edu/~emmanuel/courses/cs543/f11/slides...Computer Graphics (CS 543) Lecture 9: Clipping, Viewport Transformation & Hidden

Camera. Content Coordinate systems and transformations Viewing coordinates Coordinate transformation matrix Projections Window and viewport Acknowledgments:

Module 3 Clipping The Clipping Window€¦ · 03.04.2019 · Module 3 Clipping The Clipping Window We can design our own clipping window with any shape, size, and orientation we

CH7 Buffers and Blending. Pixel pipeline Vertex pipeline Course Map Transformation & Lighting Primitive assembly Viewport culling & clipping Texture blending

2.3 WINDOW-TO-VIEWPORT COORDINATE TRANSFORMATION …mcasjcet.weebly.com/uploads/4/4/7/9/4479347/computer_graphics... · 2.3 WINDOW-TO-VIEWPORT COORDINATE TRANSFORMATION ... 301 COMPUTER

Sutherland-Hodgeman Clipping Why Is Clipping Hard? Polygon Clippingtmm/courses/314/Vjan2007/slides/... · 2007-03-09 · Polygon Clipping ¥consider each edge of the viewport individuallyclasses

Computergrafik€¦ · Window-Viewport-Transformation . Alte Begriffe der Computergrafik: (World-oordinateC -) Window heißt ein rechteckiger (Szene-, Welt-) Ausschnitt, der abgebildet

Clipping - Kennesaw State Universityksuweb.kennesaw.edu/~rguo/2017_Summer/CS4722-7327/Slides/Lecture_13.pdfClipping • 2D against clipping window • 3D against clipping volume •

DHANALAKSHMI COLLEGE OF ENGINEERING, · PDF fileDHANALAKSHMI COLLEGE OF ENGINEERING, CHENNAI ... Clipping in computer graphics is to remove objects, ... window boundaries or viewport

2-D Viewing Transformation - Binghamtonreckert/460/lect14_2010_view_xform_clip… · Also do window to viewport transformation – with clipping For 2D graphics, use an orthographic

CS 543: Computer Graphics Lecture 8: 3D Clipping …emmanuel/courses/cs543/slides/lecture8.pdfCS 543: Computer Graphics Lecture 8: 3D Clipping and Viewport Transformation Emmanuel

Viewports - Quirks Mode• If the (narrow) browser window were to be the viewport, many sites would be squeezed to death. Viewports ... Viewports • But this layout viewport is now

Rezanje črt in poligonov. World window & viewport window viewport screen window world window

BAB 4 Tools untuk Menggambar : Window dan viewport

1 Computer Graphics 2 – Dimensional Viewing. 2 Clipping Window Viewport Viewport Coordinates The clipping window is mapped into a viewport. Viewing world

Clipping - University of Southern Californiabarbic.usc.edu/cs420-s19/13-clipping/13-clipping.pdf · Viewport transformation: to screen coordinates • Viewport transformation can