[x3d-public] value_changed event if value does not change

[Andreas Plesch]

x3dom may want to introduce an optimization which would skip generating a
value_changed event for interpolators if the output value actually did not
change. I do not know the background but one could imagine an automatically
generated keyValue array with a lot of constant sequential values, or just
a long interval with constant values.

It is clear that the spec. requires generating a value_changed event for
each set_fraction input event, even if the value does not actually change.
But what would be a real world scenario where skipping this generation of
constant value_changed event would functionally break an event chain ?
Perhaps there is even an example somewhere ? Normally, keep feeding in a
constant value would not be expected to change an output.


-- 
Andreas Plesch
Waltham, MA 02453
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