Re: Custom ICE node port context types
hey thanks guys, the problem was that I basically didn't understand it the right way. Now all the clouds have cleared up and I was able to write the node. Cheers Vladimir On Wed, Jul 24, 2013 at 6:03 AM, Julian Johnson wrote: > On 23/07/2013 17:56, Vladimir Jankijevic wrote: > > Hi list, > > I'm having little trouble here with a custom ICE node. I didn't touch > the subject for a long time so I'm a bit confused :) > What I want basically is a node with an input which takes any context, > loop over all the items from the input and output a single value. Is that > even possible? I've found the BBoxGenerator example and that's basically > what I want but I couldn't get my node to load in Softimage as soon as I > have a different output Context type than what I have as input context > type. > > > Hi Vladimir, > > The only other things I can think of checking are maybe the context > constraints when you define the ports i.e. make sure they're not using the > same constraint map and, possibly, ensuring the node definition is set to > single threaded (like BBoxGenerator). Using single threaded gives you much > more latitude in mixing ports of different contexts whereas multithreading, > by default, seems to enforce stricter rules about input/output port > evaluation...often resulting in mixed input/output ports being evaluated > incorrectly. In fact, almost all the time I find that multithreading > requires that input and output ports be in the same context. > > I tend to use multiphase a lot of the time since it seems to bypass lots > of port context issues (probably because all the initial phases are single > threaded anyway). > > Julian > >
Re: Custom ICE node port context types
On 23/07/2013 17:56, Vladimir Jankijevic wrote: Hi list, I'm having little trouble here with a custom ICE node. I didn't touch the subject for a long time so I'm a bit confused :) What I want basically is a node with an input which takes any context, loop over all the items from the input and output a single value. Is that even possible? I've found the BBoxGenerator example and that's basically what I want but I couldn't get my node to load in Softimage as soon as I have a different output Context type than what I have as input context type. Hi Vladimir, The only other things I can think of checking are maybe the context constraints when you define the ports i.e. make sure they're not using the same constraint map and, possibly, ensuring the node definition is set to single threaded (like BBoxGenerator). Using single threaded gives you much more latitude in mixing ports of different contexts whereas multithreading, by default, seems to enforce stricter rules about input/output port evaluation...often resulting in mixed input/output ports being evaluated incorrectly. In fact, almost all the time I find that multithreading requires that input and output ports be in the same context. I tend to use multiphase a lot of the time since it seems to bypass lots of port context issues (probably because all the initial phases are single threaded anyway). Julian
Re: Custom ICE node port context types
Take a look through the pass through node example on the sdk. You might need to implement template classes. Sent from my iPhone On 2013-07-23, at 12:56 PM, Vladimir Jankijevic wrote: > Hi list, > > I'm having little trouble here with a custom ICE node. I didn't touch the > subject for a long time so I'm a bit confused :) > What I want basically is a node with an input which takes any context, loop > over all the items from the input and output a single value. Is that even > possible? I've found the BBoxGenerator example and that's basically what I > want but I couldn't get my node to load in Softimage as soon as I have a > different output Context type than what I have as input context type. > > Any pointers would be really helpful!!! > > Thanks > Vladimir
