well a lot of my posts seem to be about dealing with really messy models.
in this case a city model without a landscape mesh... i just have the buildings as lowpoly boxes, open at the bottom. of course they are all at different heghts.
i had the idea to select all outlines (hence getting the open edges at the bottoms)
generate splines from them, then try various terrain generation tools to skin between them to generate the topology.
however of course there are turned faces, unwelded vertices and other nasties in the building meshes. so, when i select the outlines, and generate splines from them,, i also get some vertical lines as well as the horizontal building outlines.
i want to select only the vertical (z axis) segments of the splines, and delete them. hopefully this will leave me with only the horizontal building footprints, and hopefully i can generate a terrain mesh from them somehow.
what a mess :P
any suggestions?
ive tried every combination of the graphite selection tools to select only those bottom edges, but no combination works well. i always get some vertical edges and a few top ones in the selection.
bearing in mind its a few dozen sq km of buildings, its not practical to do any manual work really.
in this case a city model without a landscape mesh... i just have the buildings as lowpoly boxes, open at the bottom. of course they are all at different heghts.
i had the idea to select all outlines (hence getting the open edges at the bottoms)
generate splines from them, then try various terrain generation tools to skin between them to generate the topology.
however of course there are turned faces, unwelded vertices and other nasties in the building meshes. so, when i select the outlines, and generate splines from them,, i also get some vertical lines as well as the horizontal building outlines.
i want to select only the vertical (z axis) segments of the splines, and delete them. hopefully this will leave me with only the horizontal building footprints, and hopefully i can generate a terrain mesh from them somehow.
what a mess :P
any suggestions?
ive tried every combination of the graphite selection tools to select only those bottom edges, but no combination works well. i always get some vertical edges and a few top ones in the selection.
bearing in mind its a few dozen sq km of buildings, its not practical to do any manual work really.
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