Intelligent decimation command wanted

Hi,
as the guys and gals at McNeel are really clever types, could they please do us all a favour and create a command that enables us to indicate what areas we want detail and what areas we don’t, then have the command decimate a mesh keeping polys as a high count where detail matters, thus allowing for the optimum speed of working with it.

Vital for when a project involves many meshes.

When I export from Agisoft everything is either at the mesh finesse needed for the smaller details like nuts and bolts, so large flat sides are over blessed with triangles not needed, or one decimates and the needed detail areas are killed.

To import a few meshes into Rhino , even if its V8, I think is going to be seeing many minutes spent waiting for saves to happen, and a move to occur. Everything sloooooow.

Or is V8 a revelation and mesh friendly ?

Steve

There are a couple ways to approach this. But seeing an example would help.

Some better tools that might help:

  1. Quadremesh
  2. Reducemesh
  3. MergeAllCoplanarFaces
  4. Weld vs unweld

And there are others.

Hi,
Imagine a rolls royce, smooth sides etc, but then the spirit of exstacy, with al its feathers and face etc, as well as the key holes, the nuts on the wheels, the tyre tread, if one decimates the mesh because the sides dont need many triangles, the ability to work with the detail of the scan of the detail areas is lost. but then we have a mesh far in excess on poly count needed for the most of the car, so saves, moves, and transformations are slooooow.

Do I need to upload a mesh of such an example, it would be beyond size limits anyway.

I am working on WW2 bomb trolleys, LONG C section smooth chassis sides, but with grease nipples, bolt heads and such like in the area of the brake assemblies, seems daft to have the smooth sides festooned with triangles at the density I need them for the detailed parts. and the side beams chassis are forming the most part of the item.

Am I the only one with items a mix of smooth areas and detailed areas ? Where one comes to move the object and we have to wait ages for Rhino to do it, and a save takes forever.

maybe V8 eats mesh for breakfast.

have just installed V8 to find out.

Steve

i see similar thing in quadremesher but in Blender where you can paint the density to allow density control while remeshing.

Hi,
Blender paint density tool, thats good for me, us ‘carbon units’ know where the detail is by eye, one has control :slight_smile:

I think Blender is free which is good.

Steve

the optimization setting in shrinkwrap is the closest we’d have to a curvature based decimator.