I have a texture on my UV map that I wish to repeat across a surface in maya. (Bear with me, this is my first attempt at hand painting, no comments please)
Any ideas? I thought I heard that there was a technique in which you could ‘fold’ (if this is the right word) the UV’s in order to repeat a texture.
-myjean17
You can’t do this without editing the UV map. Maybe you’re confusing “texture map” and “UV map”?
Tiling is easier and more performant when you can use an entire tiling texture, because you can use a single polygon and just scale it up. However, if your mesh is subdivided, you’ve got other options. Use one quad on your mesh for the texture’s tile. Then, the best thing you can do for performance is to do what you said; “fold” the UVs – it works just like folding a piece of paper over and over again. The downside of this approach is that the tiling will necessitate mirroring.
Alternatively, you can create UV seams at every quad. This will increase the vertex count, but it will allow you to choose to use the texture in any orientation, anywhere on the mesh. You could even move every tile into a different place in the UV map, because any square outside 0-1 is the same thing as the 0-1 square (only with less precision if you go overboard, way outside 0-1). However, that approach will lead to floating point error popping up, too, so if you can live with the annoyance of having all the quads on top of each other in the UV map, you should.
Yes- my bad. I meant that I did not want to have to edit the texture.
Thanks for the information. I’ll check this out tomorrow.
So how would I go about ‘folding’ the UV’s?
Do you know how to edit UVs? You just need to know how to select, drag, and snap (scaling by -1 will make the process faster so you can flip a bucnh of the UVs at once.) I don’t know of a better way to describe it than folding paper. Go draw a grid on a piece of paper. Fold along the gridlines, however you want. Do the same thing in the UV Editor, unless your UV editing tools provide a better option for this.
Sorry to revive an old thread, but I am having trouble figuring out how I would fold a UV map with only 4 verts. When I try and move the verts, it simply compresses the map into a single line. Is there anyway to add more verts to the UV map without adding the same number of verts the geometry of the actual object?
No. Are you really that concerned about two verts?? :-0
Well, if I wanted to tile it twice in both directions, it would mean going from 2 polys and 4 verts to 8 polys and 9 verts, which is over twice the number verts and 4 times the numbers of polys just to make 4 tiles.
Use the Repeat UV feature within the material. There are two ways that I know of to access this in Maya.
Hypershade
Via the Mesh
What to Do Once You Get to the “place2dtexture” Node
Hope that helps.
Use the Repeat UV feature within the material. There are two ways that I know of to access this in Maya.
Hypershade
Via the Mesh
What to Do Once You Get to the “place2dtexture” Node
Hope that helps.
It seems no one has suggested the method games often use, but its not always the best way and can cause some headaches if you do it haphazzardly.
NOTE: This will only work if your mesh is a grid for example.
Simply UV a bunch of areas and have them overlapping in the UV map, then just place them all on the same area of the Texture Sheet.
This can be a pain in the ass at times especially if its badly planned and further down the line you suddely decide you’d rather not have it so obviously repeating.
The suggestion of moving folding UV’s seems odd, but its possible I’m missunderstanding it.
If you have 4 verts making a square, if you take the 2 from the left and place them ontop of the 2 from te right You’d like get a simple |, which would make your texture squished as all hell.
Exactly. I realize that diagrams would have been helpful, but I wasn’t just stringing random words together. I don’t think you actually read the thread:
I still think it would be a bad move if for example his floor was 1 giant plane lets say, and he wanted this across it, It’d be easier memory wise to simply use say 2 texture sheets than have to subdivide his flooring greatly in order to achieve the same result.
I didn’t ‘not read’ I simply missunderstood as I said, I thought it seemed incredibly odd advice, but since its the same thing I suggested it now makes much more sense, I just wouldn’t have worded it as folding, as I count each set of UVs as seperate, so I think of it more as overlapping or layering, stacking is the technical term I believe, the term folding is what completely threw me off. my appolgies.
I think an aproach like this is best considered when first starting modelling an object, it saves a bit of a headache later.
It’d be easier on all accounts. Definitely do it that way.
I wonder if the community would benefit from a ‘best rpactices’ sort of thing when it comes to texturing and repeating UVS, seems a lot of people struggle with it.
Probably not the best place to ask, but would anyone eb interested in this?
