Hi Andrew,
Yep this sounds like a bug, feel free to work and submit and fix to
osg-submissions :-)
Robert.
On Thu, May 20, 2010 at 5:29 PM, Andrew Cunningham wrote:
> Hi,
> There is some code in the _computeCorrectBindingsAndArraySizes (below) that
> assumes it is impossible to have numElements==numVertices in the normal array
> and , for example, be BIND_PER_PRIMITIVE. The code resets to BIND_PER_VERTEX.
>
> Consider a series of triangle primitives making a "strip" that loops back on
> itself, say 4 nodes on the top edge, and 4 on the bottom for a total of 8
> vertices. Like , for example, the sides of a cube as tris.
>
> The number of triangles to make this "strip" is actually 8. So in this case
> numElements==numVertices and BIND_PER_PRIMITIVE is perfectly OK.
>
>
>
>
> Code:
> if (numElements==numVertices)
> {
> // correct the binding to per vertex.
> if (arrayData.binding!=osg::Geometry::BIND_PER_VERTEX)
> {
> out<<"Warning: in
> osg::Geometry::computeCorrectBindingsAndArraySizes() "< <<" "< BIND_PER_VERTEX"< arrayData.binding = osg::Geometry::BIND_PER_VERTEX;
> }
> return;
> }
>
>
>
>
>
> ...
>
> Andrew
>
> --
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=28077#28077
>
>
>
>
>
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