Advanced Member worldcrafter Posted January 10, 2015 Advanced Member Report Share Posted January 10, 2015 hi i need to decimate a terrain of 30 million polygons down to 1 mill anyone know of software for this? 3dcoat runs out of memory now matter how virtual memory i have. price doesn't matter Quote Link to comment Share on other sites More sharing options...
Carlosan Posted January 11, 2015 Report Share Posted January 11, 2015 May be MESHLAB can handle it ? i duno hope it help Quote Link to comment Share on other sites More sharing options...
Advanced Member worldcrafter Posted January 11, 2015 Author Advanced Member Report Share Posted January 11, 2015 thanks, but i tried meshlab it also crashes on import of mesh (after a long time of trying) the obj 2.5 gb Quote Link to comment Share on other sites More sharing options...
Contributor Malo Posted January 11, 2015 Contributor Report Share Posted January 11, 2015 Zbrush with zRemesher? Quote Link to comment Share on other sites More sharing options...
Advanced Member worldcrafter Posted January 11, 2015 Author Advanced Member Report Share Posted January 11, 2015 (edited) i cant import the mesh to zbrush, says i have insufficient ram (had about 6 gb free) the only program i have managed to import it into is project memento, but it said error when i tried to deimate Edited January 11, 2015 by worldcrafter Quote Link to comment Share on other sites More sharing options...
Advanced Member RabenWulf Posted January 11, 2015 Advanced Member Report Share Posted January 11, 2015 (edited) I suppose you could try a few different options: >Bake out a displacement map and apply it to a lower poly model... ( possibly try out Xnormal for baking ) >Try reducing the rez with one of the brushes in 3d coat that does that > Try Blender's Decimate Modifier.Also close as much unnecessary applications as possible, including background processes. Maybe run some sort of memory booster app. Edited January 11, 2015 by RabenWulf Quote Link to comment Share on other sites More sharing options...
Advanced Member worldcrafter Posted January 11, 2015 Author Advanced Member Report Share Posted January 11, 2015 does anyone know if i can deimate in 2.5d (or 2d) I mean decimating a displacement map. Quote Link to comment Share on other sites More sharing options...
Member morgan Posted January 11, 2015 Member Report Share Posted January 11, 2015 You can also cut the high rez in half, decimate two discrete parts individually then sew the reduced meshes back together Quote Link to comment Share on other sites More sharing options...
Reputable Contributor digman Posted January 12, 2015 Reputable Contributor Report Share Posted January 12, 2015 (edited) You might try the resample tool, Lower left toolbar... Start by Resampling down only by a few million, if that works try resampling down a larger number... Now if you are in surface mode any areas that have denser polygons, those areas will be averaged. If you are going really low in polygons then this might not be the best... If you imported your model as voxels, the terrian polygons were already averaged upon import. I do not know if the above will work but worth a test... Edited January 12, 2015 by digman Quote Link to comment Share on other sites More sharing options...
Advanced Member worldcrafter Posted January 13, 2015 Author Advanced Member Report Share Posted January 13, 2015 I cant even import my mesh, so i cant resample it. But its all sorted now; I imported my mesh as a displacement map into mudbox using its "sculpt using map" function (in the "mesh" drop down tab) and used the "reduce" function, it did a great job. Quote Link to comment Share on other sites More sharing options...
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