[Sidefx-houdini-list] screen space pscale?

craigleehoffman at aol.com craigleehoffman at aol.com
Wed Sep 24 16:06:07 EDT 2014


Does it need to be rendered in Mantra?  I think you could accomplish this in the GL viewer (render out a FlipBook) with antialiasing turned off…


-Craig






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From: Anderson, Charles X. -ND
Sent: ‎Wednesday‎, ‎September‎ ‎24‎, ‎2014 ‎10‎:‎47‎ ‎AM
To: sidefx-houdini-list at sidefx.com





Hey All,

I need to be able to set pscale on some points so that they are always 1 pixel wide regardless of distance from camera.   I've tried using a distance from camera times 1/x resolution, but it's not quite what I want.   Maybe something shader based using the fliterstep function.   Any ideas?    Any ideas on how to treat a pixel not falling exactly on a pixel row or column?   Shift it slightly perhaps?  Should be simple but I'm just blanking out on this one.  Any help is greatly appreciated.

Cheers

Charles
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