UV Snapping Problems
Hi Polycount, I'm super new to 3ds Max, and I've been having a lot of trouble with using the UV editor. All I need to do is texture several tubular shapes, but have all of these tubes share a common pixel density on their UVs so that I can tile them seamlessly once I use the meshes in UDK. This information isn't completely relevant, but I think it does explain why I need to use the UV editor in this peculiar way.
So, I've been having a lot of trouble trying to get the snapping to work in the UV Editor. In almost any setting configuration I try, the snapping simply does not work at all, unless I select by vertex and use snap-to-grid (not pixel snap). It is as though selecting by edge or face causes the UV editor to completely ignore that fact that I have snap-to-grid (or pixel snap) enabled.
My task isn't completely impossible, since I am able to at least snap individual vertices, but if I ever happen to need to move an entire UV cluster, then I am forced to redo every vertex in that cluster over again. I really want to be able to select faces and have them snap to the grid.
Is this a common problem people have experienced in the UV editor? What should I do to fix this? I've done several Google searches on the problem, but it looks like most users are either completely unable to snap at all, or are able to snap perfectly no matter which selection mode they are in.
There is also one additional problem I have with snapping: I have been using 1/64 (0.015625), 1/128 (0.0078125), and 1/512 (0.00390625) as my grid spacing in the editor, which all work, but if I try to use 1/1024 (0.0009765625) the editor rounds off the number to 0.002, and I don't get a grid anymore. This isn't a huge problem, but is this a limitation of 3ds Max, or is there a setting somewhere that controls the limit for grid spacing precision?
Sorry if this question has been answered already, or if its really obvious; I have been trying to fix these over the past month and honestly have no idea what I'm doing wrong.
So, I've been having a lot of trouble trying to get the snapping to work in the UV Editor. In almost any setting configuration I try, the snapping simply does not work at all, unless I select by vertex and use snap-to-grid (not pixel snap). It is as though selecting by edge or face causes the UV editor to completely ignore that fact that I have snap-to-grid (or pixel snap) enabled.
My task isn't completely impossible, since I am able to at least snap individual vertices, but if I ever happen to need to move an entire UV cluster, then I am forced to redo every vertex in that cluster over again. I really want to be able to select faces and have them snap to the grid.
Is this a common problem people have experienced in the UV editor? What should I do to fix this? I've done several Google searches on the problem, but it looks like most users are either completely unable to snap at all, or are able to snap perfectly no matter which selection mode they are in.
There is also one additional problem I have with snapping: I have been using 1/64 (0.015625), 1/128 (0.0078125), and 1/512 (0.00390625) as my grid spacing in the editor, which all work, but if I try to use 1/1024 (0.0009765625) the editor rounds off the number to 0.002, and I don't get a grid anymore. This isn't a huge problem, but is this a limitation of 3ds Max, or is there a setting somewhere that controls the limit for grid spacing precision?
Sorry if this question has been answered already, or if its really obvious; I have been trying to fix these over the past month and honestly have no idea what I'm doing wrong.
Replies
In the top baar above the UV window (in TexTools)
like this
Also the align edge Tool
And lastly rectify
You have to select the move tool and not the freeform.
I've never used the grid precisely, most of the time i enter the coordinates manually/use the align tools, but maybe your issue is due to the general decimal precision that you can set under
customize>preferences>general>spinners>precision.
You might want to take a look at the uvw xform modifier that let you to make simple actions (offset, rotations, tiling) without opening the uv editor.
Hope that helps.
Ok, the reason this is happening is that the UV editor isn't displaying a pixel map so there aren't any pixels to display. The default UV checker pattern is a "procedural map" that doesn't have pixels. You need to assign a pixel based image then select it from the drop down in the upper right and THEN pixel snap will work.
This is just another reason why using a custom checker pattern works better than relying on the max defaults. Preferably something with some text and pixel density info so you know how big pixels are and if any UV shells are wrong reading and in need of being flipped.
Something kind of like...
This one is 512x512 if you get in close you can see each pixel is a different color, this helps you make sure that your pixels when applied to the model (textel) will all be roughly the same size.