Due to recent bot attacks we have changed the sign-up process. If you want to participate in our forum please send a message via our contact form. › Forums › OpenLB › General Topics › The geometry in STL is not well recongnized in OpenLB › Reply To: The geometry in STL is not well recongnized in OpenLB November 29, 2024 at 5:30 pm #9577 mathiasKeymaster According to https://www.openlb.net/forum/topic/material-assignment-indicator-is-changed-along-voxel-resolution/ I assume it is solve now — so it was not watertight!