My Radiance exporter is slowly getting born...
I am failing to step through the vertices of a polygon.
I am able to get access to the body of the 3D-objects.
The 3D-Test example shows how to step through all the vertices of the body and through all the edges, but to have something usable, I have to do this polygon by polygon.
I can get the amount of vertices, edges & polygons (I left out the error code):
API_Component3D component;
long j, nVertices, nEdges, nPolygons;
GSErrCode err;
BNZeroMemory (&component, sizeof (component));
component.header.typeID = API_BodyID;
component.header.index = ibody;
ACAPI_3D_GetComponent (&component);
nVertices = component.body.nVert;
nEdges = component.body.nEdge;
nPolygons = component.body.nPgon;
and then I step through all polygons:
for (j = 1; j <= nPolygons; j++)
{
component.header.typeID = API_PgonID;
component.header.index = j;
ACAPI_3D_GetComponent(&component);
long firstEdge, lastEdge;
firstEdge = component.pgon.fpedg;
lastEdge = component.pgon.lpedg;
// Walk through the edges
for (long e = firstEdge; e < lastEdge; e++)
{
component.header.typeID = API_PedgID;
component.header.index = e;
ACAPI_3D_GetComponent(&component);
// get the edge
API_PedgType &edge = ??????????
}
}
I'm not sure if I'm doing this correct, but I did this in about the same way as stepping through the other elements. So how do I get the list of vertices that is used in one particular polygon?
