HI Frank,
On Wed, Sep 15, 2010 at 7:12 PM, Frank Sullivan
wrote:
> The 700fps is just in wireframe mode with nothing else being drawn.
> Eventually I'll have to put it in a scene, and apply a special shader effect
> to it, which could reduce the frame rate. I don't know exactly what the frame
Hi guys,
The 700fps is just in wireframe mode with nothing else being drawn. Eventually
I'll have to put it in a scene, and apply a special shader effect to it, which
could reduce the frame rate. I don't know exactly what the frame rate will be,
but I thought it might be fruitful (partially for
HI Frank,
On Tue, Sep 14, 2010 at 8:10 PM, Frank Sullivan
wrote:
> In any case, I went for a naive implementation at first. Each drawable was an
> osg::Geometry object attached to an osg::Geode (which again, may have one or
> more osg::MatrixTransforms as parents). Each osg::Geometry had its ow
Hi Frank,
you layout doesn't really look cache friendly. Take a look at the optimizer and
it's options especially INDEX_MESH, VERTEX_POSTTRANSFORM and
VERTEX_PRETRANSFORM.
http://www.openscenegraph.org/projects/osg/wiki/Support/UserGuides/OptimizerOptions
And of course make sure your Geometry
Another thing,
Looking at the GL Trace output in glslDevil, it looks like my program is using
vertex arrays. I can't tell for sure, but I think it is using vertex arrays
because I don't see any calls to glBindBuffer and the pointer used in
glVertexPointer looks like an actual pointer to data (0
Hello again,
There is something else that I thought of. Here is a diagram of what one of
these drawables might look like:
http://imgur.com/lefTl.gif
Because of the way that this drawable is generated (by recursively subdividing
a quad), the indices are not necessarily in an order that is cach
Hello everybody,
Can I trouble you with some questions about performance? My situation is
basically this. I have a list of 54 drawables that I'm generating in-code. Not
all of them are necessarily displayed on the screen at any given time, and in
some cases, a certain drawables might be drawn m
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