[Sidefx-houdini-list] size of a pixel sample a a particular camera depth?
gdanzo at gmail.com
Mon Feb 10 21:56:18 EST 2014
We have a tool for this, which implements this formula:
pixelSize = ( length( vector from P to camera centroid ) / focalLength ) *
( Aperture / ResX )
Which looks like this in vops:
[image: Inline image 1]
Hope that helps :)
On Tue, Feb 11, 2014 at 9:57 AM, Robert Kelly <isstuff at gmail.com> wrote:
> I am currently working on this problem and was wandering if someone has
> already solved how to get a size of sample at a particular depth?
> given a point in a point cloud and a camera with its resolution, aperture
> and focal
> The problem i dealing with is getting point replicate procedural to use
> just the rite number of points when a cluster of 50 points covering 2
> pixels is a waste.
> so anyone already solved this one that would be better than reinventing the
> Sidefx-houdini-list mailing list
> Sidefx-houdini-list at sidefx.com
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