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Digital media in virtual environments Part I - images

Digital media in virtual environments Part I - images. Erik Brisson ebrisson@bu.edu. Digital Media in VR. Examples images sound clips text video streams audio streams. Images in virtual environments. C.G. concepts geometric models digital images texture mapped images

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Digital media in virtual environments Part I - images

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  1. Digital media in virtual environments Part I - images Erik Brisson ebrisson@bu.edu

  2. Digital Media in VR • Examples • images • sound clips • text • video streams • audio streams BPC: Art and Computation – Fall 2006

  3. Images in virtual environments • C.G. concepts • geometric models • digital images • texture mapped images • producing c.g. images • Images in DAFFIE BPC: Art and Computation – Fall 2006

  4. Computer graphics – texture maps BPC: Art and Computation – Fall 2006

  5. Model geometry – cube on tabletop BPC: Art and Computation – Fall 2006

  6. Model geometry - torus BPC: Art and Computation – Fall 2006

  7. What is a digital image? BPC: Art and Computation – Fall 2006

  8. What is a digital image? BPC: Art and Computation – Fall 2006

  9. What is a digital image? BPC: Art and Computation – Fall 2006

  10. 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 … BPC: Art and Computation – Fall 2006

  11. Putting it together – texture maps BPC: Art and Computation – Fall 2006

  12. Images – aspect ratio • Aspect ratio = ratio of width to height • Example 12 x 9 pixels Aspect ratio = 12 : 9 = 4 : 3 = 1.3333 : 1 BPC: Art and Computation – Fall 2006

  13. Aspect ratio example • Size = 640 x 480 pixels • Aspect ratio = 640 : 480 = 4 : 3 BPC: Art and Computation – Fall 2006

  14. Aspect ratio example • Size = 512x512 pixels • Aspect ratio = 512 : 512 = 1 : 1 BPC: Art and Computation – Fall 2006

  15. Aspect ratio example • Size = 480x640 pixels • Aspect ratio = 480 : 640 = 3 : 4 BPC: Art and Computation – Fall 2006

  16. Human view of physical world BPC: Art and Computation – Fall 2006

  17. Human view of image BPC: Art and Computation – Fall 2006

  18. Computer graphics paradigm BPC: Art and Computation – Fall 2006

  19. C.G. concept - texture map BPC: Art and Computation – Fall 2006

  20. C.G. example - texture map BPC: Art and Computation – Fall 2006

  21. Texture map full +  BPC: Art and Computation – Fall 2006

  22. Result - texture mapped c.g. image BPC: Art and Computation – Fall 2006

  23. Texture map alternative +  BPC: Art and Computation – Fall 2006

  24. More texture map alternatives BPC: Art and Computation – Fall 2006

  25. Texture map general example +  BPC: Art and Computation – Fall 2006

  26. Texture map cylinder +  BPC: Art and Computation – Fall 2006

  27. Texture map cylinder approximation +  BPC: Art and Computation – Fall 2006

  28. What you will be able to do DAFFIE Project1 demo now BPC: Art and Computation – Fall 2006

  29. 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? BPC: Art and Computation – Fall 2006

  30. Imagecp and DAFFIE BPC: Art and Computation – Fall 2006

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