Hi Simon,
Simon Haegler wrote:
there is no nice way, but you can do something like this. For the
first render frame walk through all materials und call activate and
deactivate on each TextureChunk.
(newbie alert)
i tried to use the traversal function to do this, but i see no change
(only wild tumbling solves the problem):
...
traverse(scene, osgTypedFunctionFunctor1CPtrRef<Action::ResultE,
NodePtr>(wakeupTextures));
...
and
Action::ResultE wakeupTextures(NodePtr& node)
{
if(node->getCore()->getType().isDerivedFrom(Geometry::getClassType())) {
MaterialPtr matPtr =
GeometryPtr::dcast(node->getCore())->getMaterial();
ChunkMaterialPtr chunkMatPtr =
ChunkMaterialPtr::dcast(matPtr);
if ((chunkMatPtr != NullFC) &&
(!chunkMatPtr->getChunks().empty())) {
StateChunkPtr chunkPtr = chunkMatPtr->getChunks(0);
TextureChunkPtr::dcast(chunkPtr)->deactivate(renderAction);
TextureChunkPtr::dcast(chunkPtr)->activate(renderAction);
}
}
return Action::Continue;
}
is this the way to do it? ;-)
Not bad, but not complete. ;) It assumes that there are no
MaterialGroups, and (that's more serious) that your materials only have
one texture, which is in Chunk 0. You should go through all the chunks,
and it would be safer to not use the Chunks list, but to update the
actual state, as some Chunks might be hidden inside the Material.
Hope it helps
Dirk
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