How to export meshes that uses modifiers?

Coding Python Support
1

Hello,

I wanted to export mesh coordinates and I used modifier subsurf.

As far as I understand the modifier doesn’t changed the vertex
coordinates. Is there solution to export the mesh how i see it on
the screen.

Thanks for helping

Gerhard

2

See the obj exporter for an example
basic usage is…
mesh= Blender.Mesh.New()
mesh.getFromObject(object.name)

Heres a wrapper function agound getFromObject()


def getMeshFromObject(object, name=None, mesh=None):
	if mesh:
		mesh.verts = None # Clear the mesh
	else:
		if not name:
			mesh = Mesh.New()
		else:
			mesh = Mesh.New(name)
	
	
	type = object.getType()
	dataname = object.getData(1)
	
	try:
		mesh.getFromObject(object.name)
	except:
		return None
	
	if type == 'Mesh':
		tempMe = Mesh.Get( dataname )
		mesh.materials = tempMe.materials
		mesh.degr = tempMe.degr
		try: mesh.mode = tempMe.mode # Mesh module needs fixing.
		except: pass
		
	else:
		try:
			# Will only work for curves!!
			# Text- no material access in python interface.
			# Surf- no python interface
			# MBall- no material access in python interface.
			
			data = object.getData()
			materials = data.getMaterials()
			mesh.materials = materials
			print 'assigning materials for non mesh'
		except:
			print 'Cant assign materials to', type
	
	return mesh
3

or simply :
MESH=Blender.NMesh.GetRawFromObject(‘ObjectName’)

4

second round of:

NMesh vs Mesh

…hehehe :stuck_out_tongue: :stuck_out_tongue: :stuck_out_tongue:

5

NMesh is dead, long live NMesh…

  • better that grasshopper here is taught the way of the Mesh.
    NMesh is water under the bridge… an embarising mistake we need not recall…

Povanim uses it? - Well it probably has embaresing code since its closed source :slight_smile:

6

This is a little pedantic but just say I was using
this to generate morph targets (or whatever)
from a mesh that is deformed by a skeleton.
I suppose for the gamer’s out there this is
the number one uuse for a hack like this.

Q: I need to call your magic getFromObject
each time I change the frame right?

Ie the vertices are copied as values
and not passed as references.

I guess the answer is obvious if u think about
it but I always like to be sure.

Then you just know I’m going to ask you
to put the answer in the doc don’t you.

7

That’s is your opinion but your are not the only script writer in this world .

Povanim uses it? - Well it probably has embaresing code since its closed source :slight_smile:

Less “embaresing” (supposed that you wanted to write “embarrassing”, i didn’t find any translation for “embaresing”)
than the intern yafray xml exporter :
http://jmsoler.free.fr/util/blenderfile/fr/povanim_yafraypovray01.htm
http://jmsoler.free.fr/util/blenderfile/fr/povanim_yafraypovray02.htm

8

Blender/Aqsis has this problem- theres no gaurentee verts will keep the same order or be the same number of verts- The Values are not wrapped, no.

JMS- Of course its my opinnion to stop using NMesh… people can take it or leave it. - keep your salt handy.