[3ds MaxScript] Simple Vertex Position Exporter

noekk

Hi guys, I'm making a simple MaxScript exporter for just the vertex positions. It usually works fine but sometimes I have to Reset XForm for the vertices to not be offset. I know I'm missing something. Here's the important part:

obj = objects[i]

mesh = obj (or mesh = obj.mesh for editable poly)

face = getface mesh j

vert = (getvert mesh face[1] + obj.objectoffsetpos) * obj.transform

Thanks a lot.

Klunk

what space do you want the positions in world or local ?

noekk

Maybe you can show me how to do both in case I run in to problems? Thanks.

Klunk

I'd probably do something like....

fn collect_mesh_verts_local nobj =
(
	intm = inverse (nobj.transform);
	tmsh = SnapShotAsMesh nobj;
	verts = for v = 1 to tmsh.numVerts collect (getvert tmsh v) * intm;
	delete tmsh;
	verts;
)	

fn collect_mesh_verts_world nobj =
(
	tmsh = SnapShotAsMesh nobj;
	verts = for v = 1 to tmsh.numVerts collect (getvert tmsh v);
	delete tmsh;
	verts;
)	


for obj in objects do
(
-- if you still have xform troubles you can uncomment the following (if you do that you can remove the snapshot and delete from the previous
-- functions and and replace tmsh with nobj	
	--resetxform obj;
	--converttomesh obj
	verts = collect_mesh_verts_local obj;
	export_verts verts;
)		

noekk

Thanks a lot Klunk, that's very helpful.