[ODE] Trimesh collision problem

[Jürgen Ladstätter]

Hi all,
Currently I'm trying to do some trimesh collision with a single triangle,
but the collision does not occur :(
Precompiler Flag dTRIMESH_ENABLED is set, sourcecode looks as follows:


		// 1st Vertexpoint coordinates
		dVertex[0] = 0;
		dVertex[1] = 297;
		dVertex[2] = 800;
		// 2nd Vertexpoint coordinates
		dVertex[3] = 297;
		dVertex[4] = 297;
		dVertex[5] = 800;
		// 3rd Vertexpoint coordinates
		dVertex[6] = 297;
		dVertex[7] = 0;
		dVertex[8] = 800;

		// Polygon combo
		iPoly[0] = 0;
		iPoly[1] = 1;
		iPoly[2] = 2;

		dTriMeshDataID idTrimeshData = dGeomTriMeshDataCreate();
		dGeomTriMeshDataBuildSimple( idTrimeshData, dVertex, 3,
iPoly, 1);
		dGeomID idTrimesh = dCreateTriMesh( g_ikCDSpace,
idTrimeshData, NULL, NULL, NULL );
		// create an ODE ray within the global Space and the length
of the Renderdevice Z distance
		dGeomID ray = dCreateRay( g_ikCDSpace,
g_pkGameShell->GetRenderDevice()->GetZFar() );
		dGeomRaySet( ray, 280, 280, 780, 280, 280, 820 );

		dContactGeom contact;
		if( dCollide( ray, idTrimesh, 0, &contact,
sizeof(dContactGeom) ) != 0)
			log << "yes";

		dGeomTriMeshDataDestroy(idTrimeshData);


maybe you find anything?
Kind regards, juergen