Wow thanks a lot Olivier - that looks like it will do the trick. The reason I didn't want to use curves is merely that I will get a lot of polygon islands and don't know how to automagically select all border edges for extraction - otherwise curve tangency would be fine.
The Get Gg node just before Align Particle to Vector looks like it is the one that provides the edge vector, correct!? But I fail to understand what it is doing though. Cheers Morten > Den 10. marts 2016 klokken 14:17 skrev Olivier Jeannel > <facialdel...@gmail.com>: > > > If you don't want to use curve (and curve tangent), I made this, but you > need then to subdivide your edges to get good result. > It calculate a "tangent" stored per point on the polygonal object. > Then your Pointcloud get the closest location and take that tangent data > and aligns vector. > > > On Thu, Mar 10, 2016 at 2:01 PM, Olivier Jeannel <facialdel...@gmail.com> > wrote: > > > You don't want to work with extracted edge curves ? > > > > On Thu, Mar 10, 2016 at 1:44 AM, Ed Manning <etmth...@gmail.com> wrote: > > > >> I think there might be something in Eric Mootz's emTools that does > >> alignment to edges? > >> > >> On Wed, Mar 9, 2016 at 7:22 PM, Morten Bartholdy <x...@colorshopvfx.dk> > >> wrote: > >> > >>> I am tinkering with a simple method for creating a cityscape in ICE using > >>> scatter tools. Julien Carmagnac SiScatter does most of what I need with > >>> insetting instances from edges and even scattering, but I am missing one > >>> important functionality. I need to be able to align the x or z axis of > >>> the > >>> instances to the tangent of the closest border edge, and then add a > >>> little > >>> randomization to the y rotations. I have looked deep into the compounds > >>> and > >>> tried different ways to get the edge tangent, but alas my ICE skills > >>> come up > >>> short here. Any scattering tool would do I guess - Milan Vaseks Scatter > >>> Tools or > >>> even simple nonsimulated emissions, but I need this extra alignment > >>> method. I > >>> tried Juliens Generate instance on Curve too, but it requires edge > >>> curves to be > >>> selected and extracted, plus it seems the instances seem to be flipped > >>> 180 deg > >>> on the y-axis between isntances without any way to control it. > >>> > >>> I have attached a screenshot showing a simple test where the A example > >>> is what I > >>> need, and B is what I get with Generate instance on Curve. > >>> > >>> Any ideas on this will be much appreciated. > >>> > >>> Best > >>> Morten > >>> ------ > >>> Softimage Mailing List. > >>> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com > >>> with "unsubscribe" in the subject, and reply to confirm. > >>> > >> > >> > >> ------ > >> Softimage Mailing List. > >> To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com > >> with "unsubscribe" in the subject, and reply to confirm. > >> > > > > > ------ > Softimage Mailing List. > To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with > "unsubscribe" in the subject, and reply to confirm. ------ Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
