Removing ridge by smoothing

Question

How can I remove the ridge created by the edge of the T-shirt?

I'm using the mesh in an acoustic simulator, and a distinct ridge is sure to create some unnecessary echo artefacts.

Is there any better alternative than simply decimating the mesh?

Answer 1

Modifiers:

You could try the Smooth modifier.

From the wiki:

This modifier smooths a mesh by flattening the angles between adjacent faces in it, just like Smooth in the Editing context. It smooths without subdividing the mesh – the number of vertices remains the same.

Sculpting:

Another option is to try and remove it manually with Sculpting.

1. Enter sculpt mode (in 3D view > Header) with your object selected:

   

2. Pick the Smooth brush (S) or Tool shelf > Brush:

   

3. Sculpt over the ridge with LMB:

Before:

After:

Answer 2

I'd try Sculpt mode, then hold Shift and drag mouse while holding left mouse button over the ridge to smooth it out.