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joshlklai / webgl-loader

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Improve Progressive Loading/Meshes #20

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
There are several things that might make sense to do. I'll throw these together 
in a single bug to keep things simple.

 * Use progress events to incrementally draw partially downloaded meshes
   * bounding boxes
   * vertices without indices as points
   * vertices with indices as triangles
 * Split attributes into multiple streams and refine
   * Pass #1, highly-quantized Delta + ZigZag (as usual)
   * Pass #2+, refinement passes (like morph animation)
 * Do LODs with indices (also helps for rendering)
   * Discrete or continuous LOD? Continuous might be cooler, but has questionable value. Discrete is simpler, and allows for better vertex optimizations
   * Generate new vertices or use existing vertices? New vertices are better quality (especially for textures), but existing vertices are more compact, and possibly simpler.
   * How to encode updates? How to update VBOs?

Original issue reported on code.google.com by wonchun on 17 Sep 2011 at 12:28

GoogleCodeExporter commented 9 years ago 
r69 and r70 made some initial progress by refactoring the loading code and 
using onprogress events to update the geometry.

Original comment by wonchun on 4 Nov 2011 at 7:45