need help fixing max script

Busterizer

I am following video tutorial on exporting animated mesh from max, but I appear to have a problem that isn't present in the video. Namely i have undefined variable in loop. Since I am new to maxscript I don't know how to fix this without possibly breaking stuff further.

jump to 4:48 for the problem I am having
http://vimeo.com/album/1514565/video/19782065
at the start of the loop max gives l is undefined, which is reasonable, but it isn't present in the video anywhere, and the thing works.

Mrfred

I doubt the issue comes from the tutorial, could you please paste your code so we can see what's missing?
"i" shoudnt be undefined as i == a number ranging from 1 to obj ( which you should have declared above) number of verts

do you declare obj when running the function?
ig: fn exportmesh $box001 ($box001 = obj) and so on...

Busterizer

here is the complete code from the video
what I meant was that lowercase "L" in "for i in l to obj.NumVerts do" appears to be undeclared.

function exportMesh obj fileName origin:obj = 
(
	local file = createFile fileName, 
	vertStore = #(), 
	numFrames = (animationRange.end - animationRange.start).frame as integer
	
	format "%, numVerts = %, numFrames = %\n\n" obj.name obj.numVerts numFrames to:file
	format "Frame, Vert #, Delta\n" to:file
	
	for f = animationRange.start to animationRange.end do
	(
		sliderTime = f
		for i in l to obj.NumVerts do
		(
			local v = coordsys origin getVert obj i
			local dv = if vertStore[i] == undefined then v else v - vertStore[i]
			vertStore[i] = v
			format "%, %, %\n" (f.frame as integer) (i - l) dv to:file
		)
	)
	
	close file
	edit fileName
)

the output i get is this

exportMesh $Box "c:\\test.model" origin:$point
-- Error occurred in f loop; filename: C:\Program Files\Autodesk\3ds Max 2013\scripts\export_tutorial.ms; position: 679; line: 20
--  Frame:
--   l: undefined
--   f: 0f
--   called in ExportMesh(); filename: C:\Program Files\Autodesk\3ds Max 2013\scripts\export_tutorial.ms; position: 683; line: 21
--  Frame:
--   ORIGIN: undefined
--   file: <File:c:\test.model>
--   filename: "c:\test.model"
--   obj: $Box
--   vertStore: #()
--   numframes: 20
-- Unable to convert: undefined to type: Integer

Mrfred

you misread the tutorial

it's suppose to be be for i in 1 to... 1 = one(the number) NOT the letter L

so change it in the loop and change this

format "%, %, %\n" (f.frame as integer) (i - l) dv to:file

to

format "%, %, %\n" (f.frame as integer) (i - 1) dv to:file

Busterizer

thank you, i also had to change coordsys variable to local since origin as shown in tutorial isn't valid in max anymore. Is there any difference between local and grid settings for coordinate system? I didn't notice any change in data that got stored.