Hi Andrew,
On 15/7/09 2:29 PM, Andrew Burnett-Thompson wrote:
My next big issue is memory usage. I am finding the OSG app as it stands
is using approximately 50% more memory than a legacy app we are
replacing, which is just coded in standard OpenGL.
...
For each object in the scene (of which there may be up to 1.5m objects),
I am creating the following OSG constructs:
...
3. 1x Stateset per Geode containing material data (objects are a single
colour, no textures).
If you're only dealing with a handful of colours then you could also share the
StateSets.
This will reduce the memory footprint *and* improve performance since the state handling
code can quickly group all geometries using a common StateSet together.
You mentioned that this is a CAD-style application, so maybe that makes sense in this
case? Simplest case: one StateSet for red geomtry, one for green, one for blue; or maybe
by type?
Cheers,
/ulrich
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