Volume shell for objects with no thickness?

[bhaveshpandey]

Is there a way to generate a volume (fog and SDF) shell out of an object with no thickness?

(Perhaps without the need to extrude the surface?) and within DOPs??

cheers,

Bhavesh.

[tmdag]

so what would you like to get out of flat grid?

you could use sop solver or maybe geometry to sdf microsolver that would pass geo to voxel but it depends on your needs

[bhaveshpandey]

Well I am using geo2sdf microsolver as a part of my temporary solution.

I would like to get a fairly accurate estimation of fields from the geometry for starters.

One work around I found is to:

1) add an attrib to the geo. (I used a constant value of 1 on all points. I also used curvature which gives interesting results)

2) and then populate the volume using volume from attrib sop..The issue is it gives strange results (popping and stuff) sometime.

This more or less creates a shell (and its fairly fast). I would like to know if there's any other way

Cheers.

Edited November 17, 2011 by bhaveshpandey

[bhaveshpandey]

nevermind..got it!

using the minimum mode on the geo2sdf works just fine.

From docs:

Exact minimum point to surface will be found. This is slow, but accurate.

The resulting field is not signed, so one can only generate a shell around the geometry.

An offset greater than 0 must be specified.

It sucks to lose the signed data though(and it gets pretty slow!). Is there anyway to get it back? (gas redsitance? or probably running geo2sdf

on the surface again.

anyone?

Edited November 17, 2011 by bhaveshpandey

[Annon]

Terrain node in DOPS...