So I’m testing out PTex in 2012 and decided I would render out an AO pass just top layer on top for the diffuse colour to get some variation. Turns out you can paint a PTex, Save a Ptex file but you can’t load a PTex file. Am I missing something?

Paul Neale
PEN Productions Inc.
penproductions.ca / paulneale.com
Master Classes for Max, Mudbox and Composite
DotNet Tutorials

MX Driver Car and Trailer Rig On Sale!

havnt tried it…
but i assume you cant load ptex files…
you have to mix this in the shader inside maya…

are you able to import the ao if you load a tiff file during ptex painting..?

http://www.linkedin.com/pub/christoph-schaedl/6/558/73b

Well you can’t mix ptex with Maps but strange thing is the ptex layers look like they are being saved at tif files.

Looks like I’m having an issue trying to get rid of the ptex material as well. The help file says just apply a new material but this is always being applied as a ptex material. How do I get rid of it now as it is causing save times to go through the roof.

Paul Neale
PEN Productions Inc.
penproductions.ca / paulneale.com
Master Classes for Max, Mudbox and Composite
DotNet Tutorials

MX Driver Car and Trailer Rig On Sale!

there sould be a setting in the prefs to save the files as ptex…

http://www.linkedin.com/pub/christoph-schaedl/6/558/73b

How do I get RID of the damn ptex now? Says in the help to just apply another material but that just doesn’t work. It is always another ptex material and I’m not able to save maps as a tif for example. Just try it with a simple head model. Set it up for Ptex and then do your best to try and get rid of it.

Paul Neale
PEN Productions Inc.
penproductions.ca / paulneale.com
Master Classes for Max, Mudbox and Composite
DotNet Tutorials

MX Driver Car and Trailer Rig On Sale!

I wanted to do exactly this (bake an AO layer and import it as a multiplied texture layer on a model using Ptex) and I couldn’t work out how to import it either. You can save a ptex, but not load one as a texture layer. This seems a pretty big oversight. I don’t want to composite it after as I’m not planning to render it in an external app, I just want it in Mudbox.

Pen, the inability to remove the ptex mapping from a mesh sounds like a bug to me. I’d report it at…

http://usa.autodesk.com/adsk/ser...=123112&SelProduct=Mudbox

As far as I know, they didn’t have time to allow for mudbox to import a ptex layer for the 2012 release, so I assume that’ll be in the next release or maybe a service pack. I have no inside info on that though, but it seems logical to me.

- Neil

pen 25 May 2011 12:57 PM

Well you can’t mix ptex with Maps but strange thing is the ptex layers look like they are being saved at tif files.

It’s doing that to speed up save times and painting. Basically the tif files are tif versions of what’s happening internally in the ptex file. To save an actual ptex file, you either export the layer as ptex, or you can go into Preferences -> Files and check the checkbox that says “save ptex files with mud file”.

Even though they are tif files though, they are mapped to the surface using a ptex mapping, so they only work on a model that’s been setup to use ptex.

- Neil

That makes sense, thanks Neil.

Paul Neale
PEN Productions Inc.
penproductions.ca / paulneale.com
Master Classes for Max, Mudbox and Composite
DotNet Tutorials

MX Driver Car and Trailer Rig On Sale!

I’m just starting with MB and the Subscription AP version - and was having trouble importing ptex files that were painted in the same version of MB. I read here that it can’t be done - so just be perfectly clear on the workflow: the only way to edit ptex files in MB is to create them there, and to save the file is a .mud file so you can come back in to tweak it later?  You cannot load and re-adjust a ptex file any other way in MB?

Thanks for any clarity :)