How to isolate UV island?

[僕の名前 (仮)]

Is there a way to make paintable only specific UV island, so I don't accidentally add paint where I don't need?

[MadMinstrel]

Yes, you can quickly mask off UV islands with the Geometry Decal tool in quickmask mode (press T).

[僕の名前 (仮)]

No that's not what I was asking. I want to isolate all triangles within single island in one click, not painting the mask with brush. Just like in mudbox.

[MadMinstrel]

Like I said. Don't use a brush. Use the Geometry Decal tool. To paint a whole island with a single click set it to uv island mode in the tool settings.

[僕の名前 (仮)]

Oh yeah I now got it working (still more clicks than Mudbox though)

Now I have another 3 questions:

1. How do I fill the color in all selected islands after I made the mask?
2. How do I reset quick mask?
3. Any way to disable yellow UV outline in Geometry decal mode? Or at least make it more transparent?

[MadMinstrel]

1. With the same tool. Just get out of mask mode (press T again) and drag across the screen.
2. Press Y.
3. Yes, there's a wireframe opacity setting in the viewer settings panel.

[僕の名前 (仮)]

And another question, is there fast way to switch black / white color without going to color picker? (like X key in Photoshop)

[MadMinstrel]

Not that I know of unfortunately.

[Jerc]

We are not really happy with the selection/masking tools and it will undergo massive changes in future updates.