ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Rob Chapman
so, ICE topo is been around for a while now, can we cache it? ' WARNING : 3000 - "Caching : Object topology (points count or edges count or polygons count or uv sample) doesn't match." it appears not. there is nothing in the manual either. currently searching some french ex softimage dev web sit

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Ciaran Moloney
No. On Wed, Aug 15, 2012 at 11:56 AM, Rob Chapman wrote: > so, ICE topo is been around for a while now, can we cache it? > > ' WARNING : 3000 - "Caching : Object topology (points count or edges count > or polygons count or uv sample) doesn't match." > > it appears not. there is nothing in the ma

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Ciaran Moloney
Alright...you can probably use Exocortex's Alembic, but I don't know if it'll cache arbitrary ICE attributes. You can do some trickery by caching out pointclouds that hold all of the important data. Then reading in that to another temporary pointcloud that passes the data back to an ICE topo objec

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Chris Chia
Hi Rob, What do you wish to do? Export the topo attribute of a prim and read it in with another prim? Chris Sent from my iPhone On 15 Aug, 2012, at 6:57 PM, "Rob Chapman" wrote: > so, ICE topo is been around for a while now, can we cache it? > > ' WARNING : 3000 - "Caching : Object topology

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Ciaran Moloney
Also, I'm pretty sure this is how Oleg's ImplosiaFX works, so I guess there is some production basis to the workflow. On Wed, Aug 15, 2012 at 1:03 PM, Chris Chia wrote: > Hi Rob, > What do you wish to do? Export the topo attribute of a prim and read it in > with another prim? > > > Chris > Sent

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Rob Chapman
Caiaran , thanks! :) exploring options right now. Guillamine has mentioned some hacks in the past on this list to get this cached with pointclouds. Chris, I have a mesh made with ICE topo that 'grows' every frame. The scene now is very heavy with only this in and doing new stuff in it like add

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Rob Chapman
ok yes its still early days on trying this out and havnt explored all options yet. this is my todo list. 1. Cache topo to point cloud - recreate topo 2. Alembic am recently learning how to use ICE modelling on a current job where its perfect for the intended effect, just suprised that this has n

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Oleg Bliznuk
The caching of topo by caching self ppos and description is worked case for me, tested on > 100K triangles ( R\W and live rendering) with success but only before the moment when your geometry has any ( surprise! ) UVclusters on it :-) if it is true, I permanently begin to get crashes there and here

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Ciaran Moloney
Looks like you really just need a single pointcloud to read in the cache, you can write straight from the mesh. Attached is an example with UVs and a custom vector attribute cached. Play through once to write out the cache from the 'Live' mesh. https://dl.dropbox.com/u/14344332/3D/XSI/Scenes/pubes

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Rob Chapman
wow thanks Ciaran (again!) will have to test this later at home as we are still on 2012 Sp1 here, although there is a version 2013 installed somewhere - I can transfer out the ICE tree and recreate in 2012 right? On 15 August 2012 14:20, Ciaran Moloney wrote: > Looks like you really just need a

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Ciaran Moloney
er...careful. 2013 uses a new super powerful build array from set node that may cause your flux capacitor to explode. On Wed, Aug 15, 2012 at 2:59 PM, Rob Chapman wrote: > wow thanks Ciaran (again!) will have to test this later at home as we are > still on 2012 Sp1 here, although there is a ver

Re: ICE modelling: topo cache when polygon count is changing

2012-08-15 Thread Rob Chapman
mine or Softimages? :) no-worries - been there done that already, trick is to replace the compiled 2013 node with a renamed 2012 version then export the icetree. et voilĂ  - forward compatability On 15 August 2012 15:19, Ciaran Moloney wrote: > er...careful. 2013 uses a new super powerful buil

Re: ICE modelling: topo cache when polygon count is changing

2012-08-16 Thread Rob Chapman
Ciaran, thank you very much indeed that worked a treat! I had a slight issue recreating getting the txt_proj attribute over but mostly just a typo in the name I think. for those that are stuck in Production on 2012 still and want a slice of Topo caching action from Ciaran, I converted it to work

Re: ICE modelling: topo cache when polygon count is changing

2012-08-24 Thread Chris Chia
Hi Rob, >From what I know, you can force a custom attribute to be cached if you >deliberately force it by "display its attribute" while you are caching from >the 'real object'. Anyway, I have written a small ice node plugin (during the wkends) and this node reads some attributes from ice cache

Re: ICE modelling: topo cache when polygon count is changing

2012-08-24 Thread Alan Fregtman
It ought to recreate UVs and material assignments also, I'd think. :) On Fri, Aug 24, 2012 at 10:42 PM, Chris Chia wrote: > Hi Rob, > >From what I know, you can force a custom attribute to be cached if you > deliberately force it by "display its attribute" while you are caching from > the 'real o

Re: ICE modelling: topo cache when polygon count is changing

2012-08-24 Thread Chris Chia
Material will be a tricky one... Unless it is in the scene... ;) Will see what I can do. On 25 Aug, 2012, at 11:44 AM, "Alan Fregtman" mailto:alan.fregt...@gmail.com>> wrote: It ought to recreate UVs and material assignments also, I'd think. :) On Fri, Aug 24, 2012 at 10:42 PM, Chris Chia mai

Re: ICE modelling: topo cache when polygon count is changing

2012-08-24 Thread Alan Fregtman
Well, yeah, I meant the ICE material attributes. :p On Fri, Aug 24, 2012 at 11:53 PM, Chris Chia wrote: > Material will be a tricky one... Unless it is in the scene... ;) > > Will see what I can do. > > On 25 Aug, 2012, at 11:44 AM, "Alan Fregtman" > wrote: > > It

Re: ICE modelling: topo cache when polygon count is changing

2012-08-25 Thread Rob Chapman
Yes, that is exactly how Ciaran's example worked and in fact my scene would not function unless the attributes were forced in this way. I was caching geometry from using the main functionality from Fabricio's PowerExtrude which has many attributes but I think limiting is not a good option and wou

Re: ICE modelling: topo cache when polygon count is changing

2012-08-26 Thread Ben Houston
I think I have to mention that Exocortex Crate for Softimage will cache dynamic topology correctly to an Alembic file and it will maintain the clusters, allowing you to re-import it pretty easily. -ben On Sat, Aug 25, 2012 at 8:43 AM, Rob Chapman wrote: > Yes, that is exactly how Ciaran's example

Re: ICE modelling: topo cache when polygon count is changing

2012-08-27 Thread Chris Chia
Hey Ben, can it cache UVs too? Anyway my ice node plugin currently works with dynamic topo too ;) Currently it also works with UVs. But have to work on the clusters and materials... Chris On 27 Aug, 2012, at 1:21 AM, "Ben Houston" wrote: > I think I have to mention that Exocortex Crate for So

Re: ICE modelling: topo cache when polygon count is changing

2012-08-27 Thread Ben Houston
Hey Chris, Well, I am more talking about caching the resulting mesh from the ICE Topo rather than a node within the ICE Tree -- so it isn't an Apples-to-Apples comparison. We support multiple UVs, clusters and material names on the dynamic poly meshes that are cached out to Alembic, although I be