I'm looking for the best way to include a triangulated mesh over existing ground. It is built up by several large dwgs covering a few hundred square meters. When I add these to my iModel it takes a very long time to load so it is not usable. Has anyone come up with a better way to include large triangulated meshes so that iTwin can handle it?
Hi Conrad, there is a setting for dgn files that used to convert the mesh into a ContextScalableMesh. However, I am not sure that would work with DWG and as these are split it may be under the threshold.
I need to speak to two teams, so let me check. I wanted to confirm that you are publishing DWG with the DWG Connector and not the DGN connector
Here is the information from the dgn side
Default limit is 5000000 for feature 'imodel-bridge-terrain-size-limit-value'
If number of facets in terrain mesh is less than this number then it will remain as Mesh and Processed with iModel
If facets is greater than this number then it will get converted to Scalable mesh on ContextShareAND you will need a ContextShare subscription
and from the dwg side
If he must stay with Autodesk products, it depends on his meshes are created. He said “triangulated” mesh, but did not say if they are large pieces of meshes or millions of single faces. If they are a accountable number of meshes, DWG connector will convert them as meshes in iTwin. If they are single faces, DWG connector currently does not detect & concatenate them into large meshes like DGN connectors do. He can save DWG as DGN using a Power Product.