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Real-time implicit surface raytracing: xyzrgb dragon 1.2 million pointcloud
gopherCG
22 views
Count: 1.2 million points (1204929)
Model: XYZRGB dragon decimation (nonuniform point spacing)
Speed: similar to bunny model
Implicit surface & disk renders of pointcloud w...
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Realtime raytracing PCD implicit 3: normals, diffuse, shadow, & reflection of dragon
gopherCG
33 views
implicit surface over pointcloud data
dragon model: 100k points (3x points of bunny)
3.2x speedup from radius & various tweaks.
Shading modes: normals, diffuse, shadow, sh...
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Realtime raytracing PCD implicit surface 2
gopherCG
76 views
36k points (4.5x of previous tests)
~12x speedup from previous
Decreased multiple sources of noise shown in previous clips
Includes the iterative auto normals estimati...
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Raytracing PCD as implicit surface & Octree
gopherCG
67 views
36k points update: http://www.youtube.com/watch?v=hgr3zPSkvIs
Implicit surface: higher quality than disk render, more accurate surface silhouettes.
Raytracing and construc...
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far frontface prune
gopherCG
17 views
without sorting the disks per ray, frontfaces belonging to a farther surface should be blocked by those from near surfaces. Using simple thresholds is not robust, but very ...
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Clustering - Point Cloud Simplification & Hole Filling 2
gopherCG
26 views
Hole filling improved from http://www.youtube.com/watch?v=2a5JCCVtu2w
Level 1 decimates 704 points to 112, 15.9% count.
Iterative soft clustering: encourages uniform spaci...
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Hierarchical LOD pointcloud in octree
gopherCG
44 views
Testing 3 levels of detail. Each node in the octree has points from one of the 3 levels. The leaf-nodes store the original point cloud.
Leaf-nodes are fine, but has overla...
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Clustering - Point Cloud Simplification
gopherCG
56 views
Pointcloud simplify by iterative soft clustering algorithm
Different from k-means, this currently is variable k-centroids not using global optimization. Local error weights...
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Diffuse 02 - Point Cloud Octree Raytracing
gopherCG
58 views
Diffuse pass, 1 directional light.
1) Octree partition artifact: overlap points duplicated across octree partitions to remove holes.
2) Redundant points from different leav...
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Diffuse - Point Cloud Octree Raytracing
gopherCG
47 views
Diffuse pass, 1 directional light.
Use to debug shading artifacts and inspect points in the octree structure.
Holes due to separated nearest neighbors during partitioning.
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