1. A Complete Wood Grain Modeling Application Incorporating Multiple Cut Types, Species, and a Tree Ring Database Ryan Retting Department of Computer Science Cal Poly, San Luis Obispo

2. Introduction to Wood Grain Modeling Uses  Computer graphics and animation  Cabinetry  Design, building, and construction applications Methods  Artificially generated texture maps (Photoshop)  Scanned Images  Simulation models

3. Problems with tessellation

4. Other Cal Poly theses 1997: Wood Grain Modeling. By Scott Senkeresty 1999: Tree Parameterization for Wood Grain Modeling. By Mike Matsui. 1999: The wood object modeling tool. By Michelle Courier. 2003: Wood Grain Modeling using Implicit Surfaces By Rob Pyle

5. Major Goals User friendly GUI application Species specification Wood-cut specification Tree Ring database integration

6. User Friendly GUI Application

7. Species Selection

8. Species Specification Characteristics  Colorization  Noise  Branching (which creates knots)

9. Cut Type Selection

10. Plain Slicing Images from http://www.oakwoodveneer.com/tips/cuts.html

11. Quarter Slicing Images from http://www.oakwoodveneer.com/tips/cuts.html

12. Lengthwise Slicing Images from http://www.oakwoodveneer.com/tips/cuts.html

13. Rotary Cut Images from http://www.oakwoodveneer.com/tips/cuts.html

14. Example Uses 3 – 10’ 2x12 2 – 12’ 2x4 7 – 10’ 4x4

15. Tree Ring Source Constant tree ring width Use a database

16. Database Selection

17. Cut Selection

18. 3D Viewers 3D Trunk and Branch Viewer 3D Board Viewer

19. 3D Trunk and Branch Viewer

20. 3D Board Viewer

21. Results

22. Species Comparison Pine Oak Maple

23. Species Comparison Walnut Cherry Zebrawood

24. Cut Types Plain Quarter

25. Cut Types Lengthwise

26. Cut Types Rotary

27. Tree Ring Database

28. Tree Ring Database Four year drought illustration