one megapixel
We're looking at combining (live) tele-immersion data with the croquet gallery project.
The tele-immersion data comes in the form of a huge point cloud: xyz, rgb per point,
with millions of points. (~ 640x480x20 or so per frame at about 10Hz.)
I did some initial tests to see if there's even a remotre feasability and discovered some interesting things:
1. you can send at least a million points straight to openGL in an array.
2. openGL can render at least a million point at slow but interactive rates, say 13Hz.
3. openGL rendered big points faster than small points!
- with pointsize at 1, i got 9Hz, with pointsize at 15, i got 13Hz, very consistently.
Weird!
some screenshots.
The tele-immersion data comes in the form of a huge point cloud: xyz, rgb per point,
with millions of points. (~ 640x480x20 or so per frame at about 10Hz.)
I did some initial tests to see if there's even a remotre feasability and discovered some interesting things:
1. you can send at least a million points straight to openGL in an array.
2. openGL can render at least a million point at slow but interactive rates, say 13Hz.
3. openGL rendered big points faster than small points!
- with pointsize at 1, i got 9Hz, with pointsize at 15, i got 13Hz, very consistently.
Weird!
some screenshots.
posted by orion at 4:22 PM
4 Comments:
Probably some clipping of the hidden points.
.. ah,
right.
more points fail the Z depth test due to higher coverage by points in front of them.
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Great Post but was not what I was looking for. But you really have a gread blog here. Keep it going.
I'll stop back every so often to see new updates maybe something will interest me in the future.
Have a good day.
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