point-clouds

The problem: I have a point cloud with quite a lot of data points (around one million). When I apply transparency to the rendered points, the transparency somehow does not show what is behind the rendered points As you can see in the example of the marked point, it does not show what it should, it is as if there is a problem with the buffering. I use three.js to create a point cloud using the following "setup": The renderer: this.renderer = new THREE.WebGLRenderer({ canvas: this.canvas, antialias: true }); The material: this.pointMaterial = new THREE.ShaderMaterial( { uniforms: { time: { type:

This is what I have so far and I want to save pcd file from it I know I have to do something like this but not exactly sure pcl::PointCloud::PointPointXYZRGBA> cloud; pcl::io:;savePCDFileASCII("test.pcd",cloud); what do i have to add in my current code that i will have test.pcd Thanks #include <pcl/point_cloud.h> #include <pcl/point_types.h> #include <pcl/io/openni_grabber.h> #include <pcl/visualization/cloud_viewer.h> #include <pcl/common/time.h> class SimpleOpenNIProcessor { public: SimpleOpenNIProcessor () : viewer ("PCL OpenNI Viewer") {} void cloud_cb_ (const pcl::PointCloud<pcl:

I am making a program with the SDK, where when users are detected, The program draws a skeleton for them to follow. I recently saw a game advertised on my Xbox, Nike+ Kinect and saw how it displays a copy of the character doing something else like: http://www.swaggerseek.com/wp-content/uploads/2012/06/fcb69__xboxkinect1.jpg Or http://www.swaggerseek.com/wp-content/uploads/2012/06/fcb69__xboxkinect.jpg Can I create a point-cloud representation of the only the person detected (not any of the background)? Thanks in advance! EDIT Using this site , I can create point clouds, but still can't crop

I am trying to vary the opacity of particles as a function of their distance from a plane. This issue describes my problem, and the answer a year ago was essentially "you can't" . Opacity is apparently a parameter of a material, not an element, and hence individual particle opacity is not possible. Has anything changed, is there any way I could achieve this? If individual particle colouring is possible, I imagine this isn't out of reach. Cheers ParticleSystem has been renamed to PointCloud and then to Points . Yes, you can create a Point Cloud and vary the alpha value of each particle's color