XB PointStream

From CDOT Wiki
Revision as of 21:26, 26 September 2010 by Asalga (talk | contribs)
Jump to: navigation, search

A cross-browser JavaScript tool which will emulate Arius3D's PointStream viewer. It will be able to quickly render a large amount of point cloud data to the <canvas> tag using WebGL.

Releases
XBPS 0.1
XBPS 0.2
XBPS 0.3
XBPS 0.4
XBPS 0.4.5 [Only Lib | Full]

XB PointStream Dev Links
3D Image Gallery
Blogs
Specifications
LightHouse
Github
Twitter
YouTube Videos

Development Resources
GPU Gems
GPU Gems 2

WebGL Specification
WebGL Cheat Sheet
OpenGLES 2.0 man pages

Occlusion Culling Algorithms

Performance Issue Ideas

  • Spatially partition point cloud into Bounding volume hierarchy and do bounding volume frustum culling
  • Do static rendering
  • Render low LOD when rotating point cloud
  • Push as much as we can to CPU and GPU
  • Use progressive "mesh" optimization to render objects if they are far from the camera
  • Allow user to control LOD
  • Stream point cloud, dynamically create and merge bounding volumes
  • Pre-create Bounding volume hierarchy