Scale UVs numerically? - 3Ds Max

TorQue[MoD]

Is there any way (via script or otherwise) that you can scale UVs numerically inside 3ds max 2013?

I've got a modular brick wall mesh that uses a tiling texture. I need to be able to scale the unwrap to an exact percentage (800%) so that the mesh maintains the seamless tiling of the brick. Currently I've been unable to figure out how to do this. I downloaded TexTools hoping it would have the ability but can't find it. Google also isn't bringing up anything useful. I saw someone else ask the same question and Ben Mathis suggested Chugnuts but the website doesn't exist anymore.

Thanks!

shirogatsu

Hmm... How about using snap tool in unwrap? You can specify your grid settings in options and then just use snap-to-grid option(Right-bottom corner of unwrap window)

TorQue[MoD]

That is a good work around and definitely something I'd consider as an alternative, but since I've already got the meshes lined up correctly, I'd really like to be able to scale to a specific value so that I don't have to manually align the edges of every mesh again... I've got a lot of scaling to do on multiple meshes.

monster

It's really easy with MaxScript. It only took a couple of minutes to put this together. It only works if an unwrap modifier is active in the modify panel. If the script ever crashes you'll need to close and reopen it.

[url=https://www.dropbox.com/s/zzlyb0ps27xawg6/Martinez_ScaleUVWsByNumber.mcr?raw=1]Download[/url]

To install download it locally. Drag and drop it into a 3ds Max viewport. Then look in the monsterBlues category to bind to a hotkey or toolbar.

TorQue[MoD]

monster, you're my hero!

spacefrog

Hmm - would'nt a "UVW Xform" modifier do the trick ?
Setting U/V/W tiling values to 0.125 ( = 1/8 ) would scale the UV coords to 800 % ...

TorQue[MoD]

I didn't even know there was a UVW Xform modifier. That's pretty cool.

Noors

Usually for scaling i use the uvw xform but if i want to scale from a certain origin (like when i want to put 4 uv maps into 1 for instance), i use the maxscript command.

If you open the listener (F11) and enable the "macrorecorder", you'll see which maxscript command corresponds to the actions you make.
If you scale some uv, you'll see something like :
$.modifiers[#unwrap_uvw].unwrap2.ScaleSelectedXY 0.5 0.5 [0,0,0]
where 0.5 0.5 is the percentage for XY (here 50%) and [0,0,0], the scale origin point.
Copy the line in the white field, modify at your convenience (0.125 0.125) and execute the line (select the text+enter)

This works for a lot of things and i can only encourage artist to make a step in scripting and looking into the help files. Just a bit of maxscript can spare hours of work sometimes.

TorQue[MoD]

Wow that's awesome Noors, thanks!

JacqueChoi

The Percentage Snap toggle already does this.