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
