That definitely got added after v7 though. gray
From: [email protected] [mailto:[email protected]] On Behalf Of Grahame Fuller Sent: Monday, April 29, 2013 03:37 PM To: [email protected] Subject: RE: cloning points with attributes Wow, forgot I wrote that. Getting old I guess. But yeah it could use some details. gray From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Stephen Blair Sent: Monday, April 29, 2013 03:29 PM To: [email protected]<mailto:[email protected]> Subject: Re: cloning points with attributes The doc does say that what you get won't be correct: Getting Data on Scene Groups <snip/> When getting per-component data, such as PointPosition, the results are correct only when all objects in the group have the same number of components. The nature of the "incorrect" results are not documented, true, but they have been discussed on some mailing lists and on blogs, like this one: http://xsisupport.com/2013/01/24/getting-pointpositions-from-a-group/ On 29/04/2013 3:03 PM, Grahame Fuller wrote: I agree it should have been documented, and it's partly my fault that it isn't. I simply wasn't aware of the issue (there was no item called "truncate array data for groups" in our database) and never stumbled across it until later. I don't work on the Softimage docs anymore, but you should log a bug for the current writers to add something to the docs. gray From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Christian Freisleder Sent: Monday, April 29, 2013 02:45 PM To: [email protected]<mailto:[email protected]> Subject: Re: cloning points with attributes Well, that might not be possible for all of us, as Autodesk might not need that much staff ;) AND there might be the minor problem that not all of us speak c++ . But seriously, I think this kind of info should be documented in the specific area of the help. Christian On 29.04.2013 20:34, Guillaume Laforge wrote: Where do you pull this sort of info? Just ask Autodesk to work in the Softimage team, this way you will be able to learn ICE nodes from the source code ;). On Mon, Apr 29, 2013 at 2:15 PM, Christian Freisleder <[email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]>> wrote: Thanks for the 2d array hint anyway, that explains some problems I had on a previous project. Where do you pull this sort of info? can't find it in the manual even specifically looking for it! christian On 29.04.2013 19:03, Guillaume Laforge wrote: That make sense as arrays data is not accessed from the Group Geometry node in this case. Thanks for the precision Grahame :). On Mon, Apr 29, 2013 at 1:00 PM, Grahame Fuller <[email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]>> wrote: The issue with arrays occurs only when you try to get attributes directly off the group, e.g., emit particles at Group.PointPosition. In the case below, where you are reading attributes at locations on the group geometry, there is no problem. gray From: [email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>] On Behalf Of adrian wyer Sent: Monday, April 29, 2013 12:16 PM To: [email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]> Subject: RE: cloning points with attributes not a problem, i am merging 7 LIDAR scans, each of which has over 10 million points... a few thousand missing ones won't make a dent! and surprisingly, Soft is coping with 70million+ points quite well! a ________________________________ From: [email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>> [mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>] On Behalf Of Guillaume Laforge Sent: 29 April 2013 17:11 To: [email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>> Subject: Re: cloning points with attributes If I remember correctly, the Group Geometry node will re-size any 2D arrays to the smallest on in the group. So the new point cloud could will miss some data (incomplete strand positions for example). I didn't double check it, but just in case :). Cheers, Guillaume On Mon, Apr 29, 2013 at 10:39 AM, Christian Freisleder <[email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>>> wrote: Hey Adrian, I would recommend to collect all your pointclouds with a group Geometry node and plug it into a "Generate Sample Set" with emission type set to "Point" and Rate type to "all Points" Rate should be set to 1. then you can get whatever data is in the pointclouds via a "self.emitlocation" and pull the data you need from this Location. you will get a red node if there are custom attributes that are not valid for all clouds. You can avoid that by setting fake values on the clouds that miss them. hope that works for you! Christian [cid:[email protected]] On 29.04.2013 15:49, Leonard Koch wrote: I had some quick fun with it. Hope it helps. On Mon, Apr 29, 2013 at 3:41 PM, adrian wyer <[email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>>> wrote: ahhh that's enlightening the clouds i'm cloning from were created with a custom script that reads positional and colour data from lidar files, creates a cache, loads the cache on a new cloud and freezes it i'm guessing that colour isn't initialised on the original cloud will experiment a ________________________________ From: [email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>> [mailto:[email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>>] On Behalf Of Peter Agg Sent: 29 April 2013 14:34 To: [email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>> Subject: Re: cloning points with attributes Hum, it should just work out of the box: it's meant to be a direct clone, attributes and all. Just done a quick test and it seems to work fine for me with Color (though this is in 2012). On 29 April 2013 14:23, adrian wyer <[email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>>> wrote: so far so good, but i need to clone points from 7 clouds into one (wrangling LIDAR data) point order/ID will be bricked from cloud to cloud i just assumed (in fact i read in the manual) that attributes would be cloned?! "All attributes of the source point are available on the target point. For example, if you want to modulate an attribute on the target point based on the source point." a ________________________________ From: [email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>> [mailto:[email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>>] On Behalf Of Leonard Koch Sent: 29 April 2013 14:07 To: [email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>> Subject: Re: cloning points with attributes You can get the point position from the main cloud plug it into an add point node and then use a switch context node to get the color from the original cloud over into the context of the cloned cloud. Since they both have the exact same number of particles and since they are ordered the same way, it works very well. Attached an image with the nodes I have in an unsimulated ice-tree on the cloud you are cloning to.[Inline image 1] On Mon, Apr 29, 2013 at 2:58 PM, adrian wyer <[email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>>> wrote: rtfm not really helping here i have a cloud of points, and an empty cloud.... using clone point (and a test point in volume) i can copy points from one cloud to another, but the attributes don't clone... i need the colour to be the same any tips? a Adrian Wyer Fluid Pictures 75-77 Margaret St. London W1W 8SY ++44(0) 207 580 0829<tel:%2B%2B44%280%29%20207%20580%200829><tel:%2B%2B44%280%29%20207%20580%200829> [email protected]<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]<mailto:[email protected]><mailto:[email protected]>> www.fluid-pictures.com<http://www.fluid-pictures.com><http://www.fluid-pictures.com><http://www.fluid-pictures.com><http://www.fluid-pictures.com><http://www.fluid-pictures.com> Fluid Pictures Limited is registered in England and Wales. Company number:5657815 VAT number: 872 6893 71 ________________________________ No virus found in this message. Checked by AVG - www.avg.com<http://www.avg.com><http://www.avg.com><http://www.avg.com><http://www.avg.com><http://www.avg.com> Version: 2012.0.2240 / Virus Database: 2641/5745 - Release Date: 04/14/13 Internal Virus Database is out of date. ________________________________ No virus found in this message. Checked by AVG - www.avg.com<http://www.avg.com><http://www.avg.com><http://www.avg.com><http://www.avg.com><http://www.avg.com> Version: 2012.0.2240 / Virus Database: 2641/5745 - Release Date: 04/14/13 Internal Virus Database is out of date. ________________________________ No virus found in this message. Checked by AVG - www.avg.com<http://www.avg.com><http://www.avg.com><http://www.avg.com><http://www.avg.com><http://www.avg.com> Version: 2012.0.2240 / Virus Database: 2641/5745 - Release Date: 04/14/13 Internal Virus Database is out of date.
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