+100 It would be great to have access to this data. The ability to build my own locations would be useful sometimes :) It's a shame we haven't seen any development in that area :(
On Wed, Jun 12, 2013 at 1:37 AM, Raffaele Fragapane < raffsxsil...@googlemail.com> wrote: > locators are more or less that, barycentric coordinates coupled with a > facet index kinda thing. > Why they are not exposed atomically isn't 100% clear. It might be some > eval issues with those atoms if they were to be exposed, just lack of > foresight in the implementation somewhere back then, simply something > missing that might one day come, or they might look up additional data of > sorts (accelstruct?) and can't be decoupled from that. > > Regardless, they can't be cracked open that I know of, not to read from > them more granular-ly, nor to write directly into or over one. > > > On Wed, Jun 12, 2013 at 1:46 PM, Vincent Fortin <vfor...@gmail.com> wrote: > >> Figured I'd start a new thread. This has been arousing my curiosity for a >> while and I need your wisdom :-) >> >> In Houdini I build locations by providing a polygon index and what is >> called a "uv parametric location". The term uv is misleading here. All it >> is, is a coordinate on each polygon plane. >> >> Softimage's sdk calls it "subtriangle barycentric weights". So along with >> the polygon index and the vertex indices I managed to build my location in >> python. I didn't test this thoroughly but I seem to be getting an >> equivalent to what I'm used to in Houdini. >> >> With regard to recreate this in ICE: >> 1) Do we have access to the necessary data? (that is, polygon index, >> subtriangle indices and the normalized weights on the triangle?) >> 2) How would we go about assembling it? >> >> I understand this all sounds a bit abstract. Like everyone I use >> locations a lot in ICE, they're amazing and manipulating them is easy. >> Maybe there is no need for exposing lower-level functionalities. >> I'm merely experimenting here to see how far I can push them. An example >> would be to access those barycentric coordinates and, say, slide a particle >> on a polygon without having to resort to the Get Closest Location node. >> >> Thoughts? >> >> > > > -- > Our users will know fear and cower before our software! Ship it! Ship it > and let them flee like the dogs they are! > -- --------------------------------------- Vladimir Jankijevic Technical Direction Elefant Studios AG Lessingstrasse 15 CH-8002 Zürich +41 44 500 48 20 www.elefantstudios.ch ---------------------------------------
