View Full Version : Turning a texture into a weightmap

03-30-2010, 07:51 AM
I'm currently working on jagged geometry and I have to create a weight map for each metal tear on my hi res mesh. I thought I could take an image, apply it to the mesh then convert it into a weight map using "texture point map" but nothing seems to happen. There's no 'apply' or 'ok' button in the texture point map tool window so the texture can be converted into a weight map, though.

Am I missing something? I'm pretty sure that it was possible to turn a textured image and turn it into a weight map. Or do I have to do it via Layout somehow?

Anyone able to tell me how to do this?

Thanks in advance.

Revanto :p

03-30-2010, 09:24 AM
I've never heard of this tools but why would you want convert an image to vertex data ? is it not faster to just paint the weight maps with the airbrush ?

03-30-2010, 10:26 AM
The texturepoint tool just works for me...All I can suggest is you check the obvious thing like axis/uv map, current weightmap you're viewing, and making sure your geometry has a sufficient number of verticies vs the detail in your image. The principle does work entirely-as-advertised for me.

Select mesh.
fire up texture-point.
pick your axis.
make sure vmap_type is on weight-map.
enter vmap name.
press texture.
setup image.
The viewport, if its on 'weight shade', should update in realtime.

03-30-2010, 04:52 PM
Firstly, it's a high res mesh so there are plenty of points. Secondly, the axis shouldn't matter as I'm utilising a UV map to drive the weighting.

I have followed the above steps but it doesn't show in the weight shade view. Maybe I have too many points or maybe I need to use a JPG instead of a PNG (maybe it calculates differently or something) but I can't experiment and check until later tonight.

03-30-2010, 05:06 PM

03-31-2010, 12:10 AM

Thanks but that's what I have been trying. Anyway, I've been experimenting and I got weird results. I don't think it like UV mapping and it probably prefers single surfaces.

Or maybe it's just me.

Anyway, I ended up do some had weight mapping and mesh cutting to give me a bastardised version of what I wanted. Hopefully I can fake it looking good in the end.

Thanks for your help, guys, anyway.

Revanto :p

03-31-2010, 06:33 AM

it's not always straight ahead, even following a video tutorial.
(it works with both UV mapping and multiple surfaces)

one thing to note though, you have to create a weightmap before you run Textured Point

03-31-2010, 06:46 AM
Theres also a UVtoWeight tool, that takes a greyscale UV map and onverts it to weight.

03-31-2010, 06:58 AM
true, forgot, that's a bit faster

only minus is that it can't be updated by reloading it in the image editor, F6
so when running UV to Weight, when it's applied, it's applied...

forgot about that one though ;]

08-20-2011, 02:52 PM
Theres also a UVtoWeight tool, that takes a greyscale UV map and onverts it to weight.

How is it supposed to work? Or maybe it got broken in LW10.1?

EDIT: Nevermind.... got it working. :)

08-20-2011, 02:56 PM
LoadVMapImage tool from VMapManager, part of TrueArt's Modeling Pack http://modelingpack.trueart.eu
does that.

02-02-2012, 06:17 AM
Theres also a UVtoWeight tool, that takes a greyscale UV map and onverts it to weight.

Hi there ..

Perhaps RH - or anyone else, can tell me where to find this mysterious UV to Weight tool? I can't find it anywhere in LW11 ...

Thanks! :D

(60km of road to go ...) *airbrush*


02-02-2012, 06:34 AM
Do a search in your edit menus for "uv to" and it should be the first thing found.

02-02-2012, 06:48 AM
Theres also a UVtoWeight tool, that takes a greyscale UV map and onverts it to weight.

did i forget something or doesn't it work that way?
from the manual,...

(It does not allow you to use a greyscale map that you can color and apply the way you would apply a Texture UV Map. If thatís what youíre after, youíre looking for Textured Point).

02-02-2012, 10:45 AM
Make a blank weight map, then texture it with Textured point.


Quick demo.....