Hi,
I am trying to use an example of a geometry node (from the tutorial) to work
with my cluster, but I seem to get a weird result. My code is as follows:
//I want a bigger mesh, but I am trying with a simple square now
int N= 2;
Real32 wMesh[N][N];
for (int i = 0; i < N; i++)
for (int j = 0; j < N; j++)
wMesh[i][j] = 0;
GeoPTypesPtr type = GeoPTypesUI8::create();
beginEditCP(type, GeoPTypesUI8::GeoPropDataFieldMask);
{
type->addValue(GL_QUADS);
}
endEditCP (type, GeoPTypesUI8::GeoPropDataFieldMask);
GeoPLengthsPtr lens = GeoPLengthsUI32::create();
beginEditCP(lens, GeoPLengthsUI32::GeoPropDataFieldMask);
{
lens->addValue((N-1)*(N-1)*4);
}
endEditCP (lens, GeoPLengthsUI32::GeoPropDataFieldMask);
//create the points for the mesh
GeoPositions3fPtr pnts = GeoPositions3f::create();
beginEditCP(pnts, GeoPositions3f::GeoPropDataFieldMask);
{
for (int x = 0; x < N; x++)
for (int z = 0; z < N; z++){
pnts->addValue(Pnt3f(x, wMesh[x][z]), z);
}
}
endEditCP (pnts, GeoPositions3f::GeoPropDataFieldMask);
GeoNormals3fPtr norms = GeoNormals3f::create();
beginEditCP(norms, GeoNormals3f::GeoPropDataFieldMask);
for (int x = 0; x < N; x++)
for (int z = 0; z < N; z++)
norms->addValue(Vec3f(0,1,0));
endEditCP(norms, GeoNormals3f::GeoPropDataFieldMask);
//create the indices for the mesh
GeoIndicesUI32Ptr indices = GeoIndicesUI32::create();
beginEditCP(indices, GeoIndicesUI32::GeoPropDataFieldMask);
for (int x = 0; x < N-1; x++)
for (int z = 0; z < N-1; z++){
indices->addValue(z*N+x);
indices->addValue((z+1)*N+x);
indices->addValue((z+1)*N+x+1);
indices->addValue(z*N+x+1);
}
endEditCP(indices, GeoIndicesUI32::GeoPropDataFieldMask);
geo=Geometry::create();
beginEditCP(geo, Geometry::TypesFieldMask |
Geometry::LengthsFieldMask |
Geometry::PositionsFieldMask |
Geometry::MaterialFieldMask );
{
geo->setTypes(type);
geo->setLengths (lens);
geo->setIndices(indices);
geo->setPositions(pnts);
geo->setNormals(norms);
geo->setMaterial(getDefaultUnlitMaterial());
}
endEditCP (geo, Geometry::TypesFieldMask |
Geometry::LengthsFieldMask |
Geometry::PositionsFieldMask |
Geometry::MaterialFieldMask );
NodePtr n = Node::create();
beginEditCP(n, Node::CoreFieldMask);
{
n->setCore(geo);
}
endEditCP (n, Node::CoreFieldMask);
Then I add a client window to my multidisplay window and the geometry looks
fine in the client window, but the indices seems to not have been sent to
the server window as I get two bottom intersecting triangles instead of the
square. I retrieve the list of indices and they are in the correct order. I
have also tried to manually set the positions in the correct order and this
seems to work fine (client and server), but not when I use indices.
Is there something I am missing, or am I misunderstanding how indices work??
Thanks,
Karina Rodriguez
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