Hi Terry,
On 1/8/07, Terry Welsh <[EMAIL PROTECTED]> wrote:
Hi Chris,
These PagedLOD holes were the main reason I have given up on writing a
simple Metaflight loader (I emailed the list about that this morning).
You're right; subclassing PagedLOD was very difficult. I was trying
to use a NodeVisitor to seek out PagedLODs with unloaded data, and
it's just too much of a headache.
For now it looks like I'll have to give up on a simple MetaFlight
loader and complicate the code by adding my own paging utility (maybe
based on NodeVisitor::DatabaseRequestHandler, or maybe not. I haven't
decided yet). If you have any other thoughts on the subject I'd be
glad to hear them.
It's sad to hear you giving up. Unfortunately I'm swamped with work,
and don't have any knowledge about the specific requirements of
MetaFlight to be able to help.
It certainly is possible to get things loading without holes with the
appropriate contruction of the scene graph - this is just what osgdem
does. The txp plugin also work just fine, but txp adds a number of
extra steps on top of standard paging to ensure the correct LOD's on
tile boundaries are selected w.r.t what data is paged in. Perhaps the
txp plugin might offer some insight.
Robert.
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