1. BPC: Art and Computation – Fall 2006 Digital media in virtual environments Part I - images Erik Brisson ebrisson@bu.edu

2. BPC: Art and Computation – Fall 20062 Digital Media in VR Examples –images –sound clips –text –video streams –audio streams

3. BPC: Art and Computation – Fall 20063 Images in virtual environments C.G. concepts –geometric models –digital images –texture mapped images –producing c.g. images Images in DAFFIE

4. BPC: Art and Computation – Fall 20064 Computer graphics – texture maps

5. BPC: Art and Computation – Fall 20065 Model geometry – cube on tabletop

6. BPC: Art and Computation – Fall 20066 Model geometry - torus

7. BPC: Art and Computation – Fall 20067 What is a digital image?

8. BPC: Art and Computation – Fall 20068 What is a digital image?

9. BPC: Art and Computation – Fall 20069 What is a digital image?

10. BPC: Art and Computation – Fall 200610 What is a digital image? P3 1136 852 255 191 214 206 113 134 135 101 120 135 102 119 147 113 129 165 117 131 170 125 138 170 158 168 195 219 227 246 244 251 255 249 254 255 197 202 222 157 163 187 156 161 190 165 172 200 218 224 246 250 255 255 252 255 251 251 255 252 245 249 250 251 255 255 188 192 204 196 200 212 234 238 250 177 181 192 111 114 133 122 121 155 154 151 194 182 176 220 243 240 255 253 252 255 250 251 246 254 254 252 255 255 255 255 255 255 254 254 254 255 255 255 255 255 255 254 254 254 255 255 255 249 249 249 249 249 249 252 252 252 255 255 255 255 255 255 255 255 255 254 254 254 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 255 253 253 253 252 252 252 252 252 252 253 253 253 255 255 255 255 255 255 255 255 255 …

11. BPC: Art and Computation – Fall 200611 Putting it together – texture maps

12. BPC: Art and Computation – Fall 200612 Images – aspect ratio Aspect ratio = ratio of width to height Example 12 x 9 pixels Aspect ratio = 12 : 9 = 4 : 3 = 1.3333 : 1

13. BPC: Art and Computation – Fall 200613 Aspect ratio example Size = 640 x 480 pixels Aspect ratio = 640 : 480 = 4 : 3

14. BPC: Art and Computation – Fall 200614 Aspect ratio example Size = 512x512 pixels Aspect ratio = 512 : 512 = 1 : 1

15. BPC: Art and Computation – Fall 200615 Aspect ratio example Size = 480x640 pixels Aspect ratio = 480 : 640 = 3 : 4

16. BPC: Art and Computation – Fall 200616 Human view of physical world

17. BPC: Art and Computation – Fall 200617 Human view of image

18. BPC: Art and Computation – Fall 200618 Computer graphics paradigm

19. BPC: Art and Computation – Fall 200619 C.G. concept - texture map

20. BPC: Art and Computation – Fall 200620 C.G. example - texture map

21. BPC: Art and Computation – Fall 200621 Texture map full + 

22. BPC: Art and Computation – Fall 200622 Result - texture mapped c.g. image

23. BPC: Art and Computation – Fall 200623 Texture map alternative + 

24. BPC: Art and Computation – Fall 200624 More texture map alternatives

25. BPC: Art and Computation – Fall 200625 Texture map general example + 

26. BPC: Art and Computation – Fall 200626 Texture map cylinder + 

27. BPC: Art and Computation – Fall 200627 Texture map cylinder approximation + 

28. BPC: Art and Computation – Fall 200628 What you will be able to do DAFFIE Project1 demo now DAFFIE Project1 demo now

29. BPC: Art and Computation – Fall 200629 DAFFIE models Models loaded when DAFFIE viewer starts –Includes geometry and texture images Use imagecp tool to send your images into VR world –Choose Corel generated image on your PC –Choose object in the Project1 DAFFIE world –Send What does this do?

30. BPC: Art and Computation – Fall 200630 Imagecp and DAFFIE