CompuServe Messages

Exportind 3DS files

    31-Jul-95 21:49:13
Fm: Mike Morgan 73121,3424
To: Neil D. Cantore 74103,2721
Neil, I hope this information will help you get your models into 3DS I'll try to cover any problems you might stumble on. >> I got one response saying that there were too many vertices to create the shape.<< 3DS does not allow objects to have more than 64K faces or vertices so make sure that your ACAD objects are separated by layer or color and they are not larger than the 64K limit. Here are a few more tips from Dave Aguilar, other Asoft Forum member. >>> a) keep an AME version of the drawing saved. explode the AME object (all the blocks) iteratively until you get down to the 3DFACE level. import these. b) make sure to have a high setting for SOLWDENS before SOLMESHing c) make sure no entities with "thicknesses" are being transferred. d) whenever possible, use xSURF commands instead to create open surfaces with a high setting for SURFTAB1 and SURFTAB2. in other words, if the objects you are transferring are completely enclosed 3d boundaries, AME can do a fairly reliable translation to DXF. if you are doing open surfaces though, use xSURF commands… (EDGESURF, RULESURF, etc) e) make sure all boolean ops on AME primitives leave clean vertice welds before DXF translation is made. check with quick renders in ACAD first to avoid gaps and open seams. f) avoid XREFed component model assemblies whenever possible. if you have to, bind the suckers first (leaving the originals intact as saved files of course) and explode down to the 3DFACE level again. g) for blocks and surfaces which are having real trouble translating, remember that 3DS also has boolean sculpting capabilities. i have often translated wireframes in ACAD to 3DS for object scultping guidelines in 3DS. this works too and uses 3DS native construction to weld vertices, etc. R13 does have 3DSOUT and 3DSIN commands to export/import directly to 3DS files, but it's also using ACIS modeler, not AME. as long as you're using AME, R13's tranfer functions won't be much more help than R12's. hope this helps. -dave >>> -Mike