CoSECiVi'15 - Towards real-time procedural scene generation from a truncated icosidodecahedron
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Abstract. The procedural method is cutting edge in gaming and virtual cities generation. This paper presents a novel technique for procedural real-time scene generation using a truncated icosidodecahedron as basic element and a custom physics system. This can generate a virtual museum in an interactive-way. For doing this, we have created a simple interface that enables creating a procedural scenario regarding the user-specified patterns, like number of pieces, connection mode, seed and constraints into the path. The scene is generated around three dimensional edges meaning a new point of view of hypermuseums. It has its own physics system to adapt the movement through the three dimensions of the scene. As a result, it allows the user to create a procedural scene in almost real-time where a user character can go over the 3D scene using a simple interactive interface.
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CoSECiVi'15 - Towards real-time procedural scene generation from a truncated icosidodecahedron
- 1. Towards Real-time Procedural Scene Generation from a Truncated Icosidodecahedron Francisco M Urea Alberto Sánchez
- 2. Index Introduction Model Description Selection of Useful Faces Path Generator Custom Physics Spacial Division Future Work & Conclusion
- 3. Introduction Related Works A survey on procedural modelling for virtual worlds Ruben M. Smelik et al. Aim: A complete survey with different procedural methods useful to generate features of virtual worlds. Real-time procedural generation of ‘pseudo infinite’ cities Stefan Greuter et al. Aim: Describe a generation of “pseudo infinite” procedural city. Building virtual and augmented reality museum exhibitions Rafal Wojciechowski et al. Aim: Generates virtual content in which visitors can interact on a display or via web.
- 5. Model description Dodecahedron Icosahedron Icosidodecahedron Icosidodecahedron Romb-Triacotahedron Icosidodecahedron truncado + = + =
- 6. Selection of Useful Faces Figure 1 Figure 3Figure 2 Useful faces: face selected Border faces: faces connected to a face Limit faces: face without all their border faces
- 7. Selection of Useful Faces 1 7 8 1 43 1 7 8 2 3 4 9 12 Avaible faces Limit face Border faces All faces Face to add Inaccesible faces 3 1 78 3 42 4
- 8. Selection of Useful Faces Connection mode Full Add all border faces, then change limit face. Lineal The new face is the new limit face. Random Random face selection.
- 9. Generation of a TI + Rotation Traslation =
- 10. Path generator 11 12 13 14 15 1 2 3 4 9 5 6 7 8 10 16 17 16 17 18 19 11 1616 Available TI TI to Check Full TI Border TI TI to rebuild Actual TI TI checked Delete
- 11. Path Generator TIs Union New center= 2 ∗ 𝑃𝑜𝑠 𝑐𝑜𝑟𝑟𝑖𝑑𝑜𝑟 − 𝐶𝑒𝑛𝑡𝑒𝑟𝑇𝐼
- 12. Path Generator Union of TIs Border face from Inception face Border face from limit face TI father New TI
- 13. Path Generator Collisions detection Have GhostLayer? Mark to destroy Do nothing Does the TI belong to a lower order? Is the TI of lower order? Add collider TI to collision list No Does it belong to TI father? No Yes Yes Yes No Yes No
- 14. Path Generator Collision Detection Can be rebuild Add collided face to block face list. Generate new face selection. Regenerate the TI Check again collision
- 15. Path Generator Collision Detection Can not be rebuild Delete the TI Repair TI’s father
- 16. Custom Physics The character controller is covered by spherical gravitational field. Force Force
- 17. Space Division Virtual space was voxelizated into cubes with the same size as TI A margin was created to avoid uncontroled collision and limit the representation
- 18. Result Children Rebuild Repair Check Move Total FIREFOX -PLAYER- YOUTUBE-HIBERNATE 240,2 104,6 36,4 416 2,4 799 FIREFOX-PLAYER 228,6 99,8 35,4 397,4 2 769,2 UNITY-EXCEL 229,4 101,4 36 377,8 2 751,8 FIREFOX-CHROME-OPERA- ALL YOUTUBE 241 103,4 36 392,2 2 784,4 GTX660M 226,6 99,6 35,2 391,8 2 760,8 UNITY 226,8 100 35,4 399 2,2 769 RESTARTED 226,8 98,6 41,8 387,8 1,8 761,8 Average 231,34 101,06 36,60 394,57 2,06 770,86 Standar Deviation 5,94 2,04 2,16 10,87 0,18 14,77 0 100 200 300 400 500 600 700 800 900 children rebuild repair check move total
- 19. Conclusion This paper presents a new procedural technique to generate a hypermuseum from a TI. It could be adapted to generate any kind of scene.
- 20. Conclusion The user walks into an infinite 3D scene created at the same time that it is gone over.
- 21. Conclusion This kind of procedural generation presents a new point of view to understand hypermuseums.
- 22. Future Works Improvement of collision system Creation of custom collision system Adapt other kinds of figures to work, making more complex scenes and better adapted to the user needs
- 23. Questions or Comments Francisco M Urea Galán franciscoMurea@gmail.com @Black_malzar