Found it. I had failed to add my view to the composite viewer so even
though an update callback reported valid framestamps from the visitor,
the precipitation node was not being updated (or updated incorrectly).
I have several of osgViewer::View each with differing viewports all
sharing a common osg::GraphicsContext. Only one of the views needs to be
added to my osgViewer::CompositeViewer to make all of them visible.
Thats what caught me out. Is that expected behaviour?
Cheers
Murray
Hi Murray,
Does osgprecipitation work fine?
As for what might be missing from update in your case, well you have
the source code. BTW you can set your own UpdateVisitor if you wish
via viewer.setUpdateVisitor(mySubclassedFromUpdateVisitorObject);
Robert.
On Fri, Jul 18, 2008 at 2:23 AM, Murray Curtis <[EMAIL PROTECTED]> wrote:
I'm having trouble getting osgParticle::PrecipitationEffect to update. I get
particles that just sit stationary in mid air but they do die (fade off)
after a few seconds.
I added an update callback to the precipitation node and can confirm its
getting a valid (updating) framestamp.
I'm using a composite viewer with two views in a shared graphics context. I
don't use the viewers run() method but I do run an update traversal (
_primaryRoot.get()->accept(updateVisitor);) as confirmed by the callback
above.
Is there another part of the update I'm missing?
A trivial test program:
precipitationEffect = new osgParticle::PrecipitationEffect;
group->addChild(precipitationEffect.get());
viewer.run();
works perfectly.
I'm using OSG 2.5.4 on Linux.
Any pointers much appreciated.
Murray Curtis
Tag Systems
Melbourne
Australia
(Irony: We're in the worst drought in Australia's recorded history and its
raining for real outside...)
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