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UVW Map or Unwrap Problem
show user profile  cdeford
Hi, I'm having a real problem creating a UV map for what seems to be a simple shape. I've tried dozens of tutorials but none actually work in practice for this model, so either I'm misaunderstanding something fundamental or there are specific steps needed that aren't covered in the tutorials I've found.

Here's the model (a single object):

This is a simple box, but I'm trying to apply three textures to one side, with the back and sides either a fourth or the same as 3. The problem I keep having is that I can create a proper map for the back/sides and area 3, but not for areas 1 and 2. I've tried both UVW Map and UVW Unwrap without success.

I'd be very grateful if someone could explain a step-by-step procedure for this. I'd like to get it into a single map if possible (for a game) but if there's a way to achieve it with each modifier I'd like to learn it.
read 498 times
10/27/2012 10:06:13 PM (last edit: 10/27/2012 10:13:05 PM)
show user profile  herfst1
Great UVW unwrap tutorial (Download part 7):

[edit] for a box simply apply UV Map modifier and tick box. It should work fine. You can apply a checker map to see if anything's stretched.

[edit] if you still have troubles, select one side and apply a UV Map modifier, select planar. Then do that for all the sides. You can then collapse everything and apply an Unwrap modifier and organise all the faces nicely. This is a very backward way of doing it but also very easy.
read 495 times
10/27/2012 10:11:20 PM (last edit: 10/27/2012 10:15:13 PM)
show user profile  cdeford
Thanks for the reply. I should have mentioned that I'm using 3ds Max 8. That tutorial looks great for when I get more advanced but it's not covering the basic areas I need right now.

I tried both your suggestions but both just get me to where I've been before - a map giving me the front back and sides.

But I need the front side split into three distinct areas, and how ro achieve this is what I'm not grasping.
read 487 times
10/27/2012 10:56:30 PM (last edit: 10/27/2012 11:02:09 PM)
show user profile  herfst1
If you have photoshop (PS) you can do it there. Just save out your UV Map (while in the UV editor go to "Tools" -> "Render UV Template") then open it up in PS and make a new layer with the 3 textures covering the front plane.

If you don't want to use PS you can always assign a multi-material to your object. Select the faces on the front (that you want one texture applied to) and give it a material ID of 1. Repeat for the other faces of the front (with ID's 2 and 3 respectively). Now open your material editor and create a "multi-sub material." Create the three materials you want in ID's 1,2 and 3. Now click-drag the mult-sub material onto your object and it should work fine.

If you need any pictures to explain any steps I'll whip something up.

P.S. for some reason your pic didn't load up for me before and I misunderstood your problem. Sorry about that.
read 482 times
10/27/2012 11:11:04 PM (last edit: 10/27/2012 11:13:02 PM)
show user profile  cdeford
I had to change hosts when the first one didn't show the picture, so it was my fault it didn't show initially.

I tried Render UVW but got a strange result. The map doesn't render fully or in proportion:

Though I don't know if that approach would work since I ultimately need to export the model as a .nif file. I haven't got that far. I don't have Photoshop but I do have Paint Shop Pro.

I've tried the multi-material approach setting up material IDs for different areas, then Poly Select -> UVW Map modifier for each area, then creating and applying the multi material. That does (sometimes) create extra areas on the front but the maps are never applied correctly to those 2 central areas (but are correct for the outer area, back and sides). I think what I'm missing are the exact procedurals steps required, for instance when Ignore Backfacing should be checked or unchecked, what UVW shapes to use on each part, when to collapse the stack etc. These sorts of things typically don't get explained in tutorials.

This is the sort of thing I'm trying to achive. The plaques are separate textures.

I appreciate your help. I think understanding this will be a big step forward.

Edit: Sorry, took that first picture out - it was displaying incorrectly in PSP, but now looks OK.

I've actually done it, finally. The first approach, using a paint program, didn't work, because the nif exporter created only one texture section. Probably this will work but needs other steps I'm not yet aware of. I've now got the second method to work. I didn't expicitly set up material IDs, I just selected polys, applied a texture, applied a UVW map modifier, then re-converted to a mesh, and repeated. I think that last step was missing before.

I'd like to know how to make Unwrap UVW work, since that's supposed to be more efficient, but at least I've made a bit of progress.

EDIT 2: I now have Unwrap UVW working as well. Thanks for your help.
read 463 times
10/28/2012 1:19:58 AM (last edit: 10/28/2012 6:04:13 PM)
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