Point Cloud

Natural Model

Category:

Science & Technology

Tags:

• computer

[spider853]

@spider853 Also they can use laser scanners or other 3D scanners

[spider853]

@spider853 They use the data from references with some translation/scaling/rotation

[spider853]

@spider853 Also in games the use octree voxels. Octree are like boxes in boxes organized in hierarchy and the final box (leaf) contains a minimal number of points (voxels). So for rendering they can use meshing of points (with nearest point algorithms) like "unlimited" detail, or geometry boxes like in Minecraft. also to optimize them they can use references of point/voxel container (can be octree leafs or other boundaries) so they don't need to create additional memory for them.

[spider853]

@hrsitcom 1. Its can be a proprietary format or other existing formats like .XYZ,SVY,PTS,PTX,TXT(ASCII),PL­Y, basically the can be compressed or non compressed, ASCII or Binary, they have position and color data

2. You can track them with a video camera and use some software for 3D tracking and poindcloud generation (make a gsearch). for polygon rendering they are using different algorithms for searching nearest points and generating a polygon with color info from selected points

[hrsitcom]

1# what format is it in which point cloud meshes would be imported for games?

2# what programs can be used to make such models and how will one make such. usualy modeling programs use poligonal geometrix so how would one work for points cloud and unlimited detail?

[ronniereiff]

It looks like some kind of map made from ultra sound or something when can i see the map with textures