1 / 31

A System for Modeling Flowers Combining Interactive and Procedural Methods

A System for Modeling Flowers Combining Interactive and Procedural Methods. Adam Kromm – CPSC 502 Project. Introduction and Motivation. Introduction and Motivation. Computer Imagery Video Games Movies Pictures. Introduction and Motivation. Biological Classrooms Simulation Studies

tamyra
Download Presentation

A System for Modeling Flowers Combining Interactive and Procedural Methods

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. A System for Modeling Flowers Combining Interactive andProcedural Methods Adam Kromm – CPSC 502 Project

  2. Introduction and Motivation

  3. Introduction and Motivation • Computer Imagery • Video Games • Movies • Pictures

  4. Introduction and Motivation • Biological • Classrooms • Simulation Studies • Mechanics

  5. Introduction and Motivation Wild Rose Chrysanthemum

  6. Background

  7. Background Geometric Modeling of Organs Organ Distribution Intersection Resolution Animation of Development

  8. Geometric Modeling of Organs • Sketch Based • Organ shapes • Anastacio, Ijiri

  9. Geometric Modeling of Organs • Image-Based • Quon

  10. Geometric Modeling of Organs • Traditional Methods • Generic Modeller • Bezier Patches

  11. Organ Distribution • Sketch Based • Whole Plant • Ijiri, Anastacio • Floral Diagrams and Inflorescences • Ijiri

  12. Organ Distribution • L-Systems • Custom Made • Prusinkiewicz, • Predefined • Anastacio, Streit

  13. Intersection Resolution • Borrowed from physics • Surface-based Growth Simulation for Opening Flowers • Ijiri

  14. Problem Position A specialized system for quickly modeling diverse flowers. Requirements: • Possibility to model a wide variety of flowers • Simple and intuitive interface • Combine interactive and procedural modeling methods • Resolve intersections

  15. Proposed Solution

  16. General Design

  17. Geometric Modeling of Organs • Sketch-based interface • Interactive and procedural methods • Surfaces and volumes • Conforming Delaunay Triangulation • Surface of revolution

  18. Geometric Modeling of Organs • Deformations • Horizontal deformations • Vertical deformations

  19. Organ Distribution • Inspired by floral diagrams • Each dot is an organ • The color of the dot is the same as the organ color • Phyllotactic placement • Uniform distribution around a circle.

  20. Organ Orientation • Automatic orientation • Based on position • Interactive orientation • Rotate around x-axis and z-axis

  21. Intersection Detection • Modifications • Use triangle edges • Position based dynamics

  22. Intersection Resolution • Determine point of intersection • Find distance to object boundaries

  23. Intersection Resolution • Direction of movement • If edge is closest to boundary • Move edge opposite direction of boundary • If triangle is closest to boundary • Move edge towards boundary

  24. Results

  25. Results Apple Flower Lily

  26. Results Tulip – 13 minutes Water Lily – 17 minutes

  27. Results Sunflower – 13 minutes Blue Wild Flower – 14 Minutes

  28. Conclusion

  29. Conclusion • Flower modeling system combining procedural and interactive methods. • Helps resolve intersections • Simple and intuitive interface

  30. Future Work

  31. Future Work • User studies • Gradients • Complex colors and patterns • Variations • Wrinkles • Imperfections • Complex collisions

More Related