Weight Mapping Expanding Past The Selected Polygons
Novica
Posts: 23,925
I am just learning weight mapping (funtime- not) and when I have the geometry selected, then use the Node Weight Map Brush section and do the Fill Selected, it is going past the polygons (a soft blend, but still, I don't want it to do that.)
I don't know what influences what, I do have the Respect Limits turned on when I am painting the polygons that I am weight mapping. I do the Fill at 100%. The polygons are in straight rows, not jagged. Any ideas? Appreciate the help. I have two tutorials but neither cover this (and it sure would be nice if they did.)
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Me too, and I'm having the opposite problem, where it does a hard break and I can't extend the selection to smooth it. I have a tutorial that's shows exactly what to do but I must be missing some step. I'd help if I could!
How far beyond? Remember that it's the vertices that have weight, so the ones along the edge of a non-zero area will bend the polygons on the other side - but nothing else should be affected.
Use attenuate. Also, the sensitivity of your brush- I upped it to .40 when I painted, attenuate 100%. Then Smooth Selected 40/62. Then Attenuate 70%. Then Smooth Selected 63.3/75. The lower Attenuates will spread your smoothing. Glad I could help on SOMETHING LOL.
And you didn't miss it- those guides (I use two) do not address that, and again, they should.
It's right past them, doing about half of the next square (polygon.) So you're saying that's normal?
So what does Respect Selection do then?
Here I've created a really simple figure - just a plane with twenty divisions. I added a single boneplaced on the centre axis. Then I selected all but one column of polygons on the right half of the plane, assigned them to a surface, and made that blue (while the unassigned plygons I made yellow). Then for the bone I used the same selection to fill the weight map with a value of 100%. As you can see, that weighted all the vertices belonging to the selected polygons so when I bend the bone not only the blue polygons are bent but also the first column of the yellow - because the vertices along their border were weighted to 100% when the blue polygons were selected.
Well, yours is a clear cut division. (And thanks so much for showing that.)
I'm not sure what exactly is going on, where I have the square rows (no jaggies) when I do the fill selected (with the polygons) at 100% they are going about halfway through the next row.
Richard, for Selection Type, are you using Polygon or Vertex? I'm Polygon.
Yes, polygon. That used to be all we had.
Your screen shot looks right if you filled up to the polygon before the polygon loop with the fade - the gradation is just an effect to tell you that the vertices around each graduated polygon have different weights, as opposed to the solid red or solid nothing when all surrounding vertices have the same weight.
That helped but I'm not entirely sure I know what I'm doing. Thanks!
Okay, but if I am doing all of them with the 100% when I "Fill Selected" then why do they have different weights? Sorry, not trying to be a pain!
So the one showing the gradient was filled or not filled? If it was not itself filled then it is correct - you filled the loop of polygons next to it, so all of those vertices were set to 100%, but you didn't fill the rest of the item, so those vertices are 0% (or have no weights, which amounts to the same thing). The loop with the gradient has 100% vertices down one side (from filling) and 0% vertices down the other, so it shows a gradient. If you did have that lop of polygons selected when you filled then you shouldn't have that result, no.
Okay, I think I've got it. Thanks so much! All this may work out when I'm doing smoothing, will have to wait and see.
did you figure this out? i had the same issue and solved it by highlighting the parts that were expanding past my selection and weightmapping them to 0. I only did this on the first half, the other half I did normally.