hmmm... interesting.

perhaps I should explain a little more of what I'm trying to achieve.

http://www.zebraimaging.com/ these guys seem to do some pretty interesting 3D 
holographic prints which can take in obj format model etc however to get 
shading and geometry shaders etc out of the scenes set up from rendering 
strikes me as a bit cumbersome. ( it can take baked textured etc)

They also take in .pts (pointcloud files) or .xyz text files (not sure what 
they do for colour though)

Looking at the positiontopoints stuff in nuke I figured that I could perhaps 
just render whole scenes with a points pass and find someway to convert the 
data in the .exrs to a combined pointcloud.

I don't think an obj is going to give me what I want . Looking inside the file 
in a text editor seems to have a whole bunch of points which I could reformat 
as needed but no colour information.

Thanks for the assistance.

Dave



________________________________
From: [email protected] 
[mailto:[email protected]] On Behalf Of Deke Kincaid
Sent: Friday, 30 September 2011 6:13 AM
To: Nuke Python discussion
Subject: Re: [Nuke-python] positiontopoints export to pointcloud

If you write it to an fbx then Maya reads them all in as locators.

-deke

On Thu, Sep 29, 2011 at 14:45, Frank Rueter 
<[email protected]<mailto:[email protected]>> wrote:
I've just used simple objs before (WriteGeo) for such things. Some apps don't 
like point-only objs though (i.e. Maya)


On Sep 30, 2011, at 2:32 AM, Tim BOWMAN wrote:

Can you sample() each pixel and write that out? It won't be fast, but it'll get 
your data.

On Thu, Sep 29, 2011 at 11:24 AM, Dave McDonnell 
<[email protected]<mailto:[email protected]>> wrote:
I hope this isnt such a stupid question as i'm afraid it might be.

I'm looking for a way to export the 3D point position data that I can collate 
using the positiontopoints setup in Nuke as either .xyz formatted text or as a 
.pts file etc. Basically I want to be able to generate pointcloud data for 
other apps from my renders.

Anyone got any insights?

Cheers,

DaveMcD



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