with the Kinect, however.
I've reinstalled the SDK several times, tried multiple Kinects & USB + AC adaptors. Running it on Windows 7 (bootcamp) and Windows 7 (Parallels + Yosemite). Parallels tools is also installed properly.
I'm just not sure how to proceed. If anyone has information on these issues, please advise. Thank you.
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Added by Matt Heinzler at 4:34pm on November 25, 2015
triangles around a vertex make an angle of 360°, but the variation or defect from this angle is exactly what enables a polyhedral surface to form a discrete version of double curvature.
In fact there is a precise relationship between the Gaussian curvature of a smooth surface, and the angle defects of its polyhedral version - the curvature can be regarded as concentrated at the vertices. As you refine the division into more and more smaller faces, getting closer to smoothness, the angle defects at each of the vertices get smaller, but their total remains the same. So as long as you have a finite number of triangles, they can get closer to all being equilateral, with 360° around each vertex, but never quite get there.
For example, in the case of a closed surface without handles, the angle defects will always sum to 720° (this is Descartes' theorem, and the Gauss-Bonnet theorem generalizes this to a relationship between the integral of Gaussian curvature and the topology of a surface).
A regular icosahedron is a special case, where the angle defect is divided into whole multiples of 60° - so one triangle short of a full circle at each of the 12 vertices - but for most numbers of faces there will be no such neat division.
This being said, if you accept that what you want will not be achievable exactly, and allow some level of error from your conditions (such as not having the triangles touch exactly, or some amount of size/angle variation), then there are ways of finding an approximation.
In Kangaroo you can constrain points to a surface then use a combination of mutual attraction or repulsion and spring forces to relax points towards an even distribution. I'll post an example soon.
There are also some extra equalization functions coming in the new version that will help with this.…
Added by Daniel Piker at 3:09am on December 12, 2010
ts of spheres, that are behind the camera, appear. This normally happens with weird lens length settings. The camera needs a 45° viewing angle and therefore might fall into this category. Maybe there is a good solution to get rid of this issue?
Issue #2: I have no clue how to run the screenshot calculation at the end of the solution. Normally I wanted to color the spheres in the video with the "Custom Preview" component, but they would not show up in the saved picture, since custom preview was calculated later than the screenshot component "Cubemap"
Issue #3: The calculation of an equirectangular image takes quite a while. ~4 seconds. Thats still good compared to the 9 seconds i had in the beginning. Multithreading through parallelizing could improve it even more, but it wouldn't work for me.
Especially ISSUE #2 is annoying and does not allow me to create a nice video. I would be glad if someone could assist me in this.
I actually tried already ExpirePreview or Solution, but maybe I used it the wrong way...
Best,
Martin…