Thank you both for getting back. The Optimise command didn't have any effect. I tried to use the UV mapper by clicking on the UV tab ,but haven't been able to find the Only selection check box.
Not sure whether its relevant but the whole chair is one object. I have two materials one is rotated so that i can show the grain correctly on each part of the chair. This works fine everywhere a part from the back rails mentioned. Thanks again
I figured that the Optimize probably wouldn't help, but it's one of the first things I try. Is it possible for you to post the file here? If not, that's ok.
I am a little confused why your texture doesn't show at all in the middle section though. Usually if you apply a texture material, it does show up, even if it doesn't line up with the texture on the polygons next to it. You may want to check the material shade selection in the properties panel. You can have 25 materials per mesh (0 – 24).
Typically on a mesh this complex, you might need to create seams and then UV unwrap it, if you haven't already.
You can do this in the UV tab:
1. Set your seams
2. select your mesh
3. right click to call the unwrapping algorithm (LSCM or ABF)
4. orient the polygons as needed
5. Right Click save UV's to PDF
6. Use another software to line up your textures to the map. Once you save the texture map with all your textures lined up with the mesh,
7. you can save it out as a RGB bitmap
8. and then load the bitmap you just created into your material.
9. If everything is done correctly, once you put the material back on your chair, all the textures should be in place.
I do occasionally have to UV map, but it’s not my best skill when it comes to 3d. Most of my stuff is mapped to a plane or cube.
Frank has a really great UV mapper tutorial video somewhere. I'll see if I can find it if you haven't seen it already?