Unfold.rb script: useful for UV-mapping?
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@sorgesu said:
Because I just recently became interested in this subject, I found this on a search and I'm resurrecting.
Further to the above speculations, I was thinking it would be great to be able to substitute a whole group of textures that are mapped to the subcomponents of a model,such as a person or a car for instance. That way, instead of providing the person or car in various colour verisons as an skp, all you need to do is substitute a material library on an existing model. If one must create a new skp for the same model, in a different colour, or maybe with some different detailing, when you create the variations you would have to go through mapping all the compoenets one by one again on the same model. Having a swap feature for the material "set" would be great.
Swapping is already possible, even with uv-sets in place (as long as the new bitmap has the same image size as the old one.)
Write down the dimensions of the existing texture (the dimensions specified in the material editor).
Then do the substitution from within the 'Entity layer' (NOT from material editor).
Next thing to do is going to the material editor and change the dimensions to the ones you wrote down.
It's tedious but it works. -
NO swapping is not currently passible for ane entire "group" of materials all at once, which is what I was requsting.
Say I have a car component and it has 17 materials assigned to different portions of the car. I want those 17 materials defined as a "set" and I want another set containing a different 17 to be swapped in in one go.
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Indeed: No for groups of materials, Yes for ungrouped meshes containing 1 material.
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Susan,
I'm working on it.
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OMG that's amazing. Thanl's a heap!!!
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Rick can you get your 4 month old to help out with ruby coding and expedite the process..
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@unknownuser said:
Rick can you get your 4 month old to help out with ruby coding and expedite the process..
Now now Phil, all good things come to those who wait.
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Very interesting thread!!! I have some physical models I need to build for an exhibition, so this would be very useful but I can't get the unfold script to work on Vista, any ideas?
@unknownuser said:
Blender has the capability you are requesting, KB. Neatest part is where you can actually use painting tools on the unfolded map and then see them applied in the rendered viewport.
I haven't used it in a while, but now that I've been given a little project with a certain degree carte blanche I was planning on testing all kinds of integrations with SU, Blender, and more obscure programs.
Lewis,
Please could you let us know how this goes, I have generally found Blender to work very well with SU imports/exports.
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@unknownuser said:
Very interesting thread!!! I have some physical models I need to build for an exhibition, so this would be very useful but I can't get the unfold script to work on Vista, any ideas?
mate youi could do a search on the net for paper arch models. I know once there was a thread on the PPB about these and there was a link to an application that could output a flat plan unfold to produce a paper model from digital models....
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@richard said:
@unknownuser said:
Very interesting thread!!! I have some physical models I need to build for an exhibition, so this would be very useful but I can't get the unfold script to work on Vista, any ideas?
mate youi could do a search on the net for paper arch models. I know once there was a thread on the PPB about these and there was a link to an application that could output a flat plan unfold to produce a paper model from digital models....
that would be Pepakura i suppose???
http://www.tamasoft.co.jp/pepakura-en/ -
Thats the one mate!!!!
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Yes I have the free version of Pepakura and it's not bad, I made a fairly good Gherkin model with it("gherkin" is the nickname of a building in London called St Mary's Axe). But on more complicated geometry it doesn't do as well.
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@solo said:
Make a cone shape and then project the texture attached below to the cone from above view, notice it will map the shape of the cone perfectly without distortion.
How did you do this trick, with PS think but how did came up with the idea.
Ive got this mapping problem with this mesh. also trying to learn blender right know so i can use the UVmapping abbility
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Hi Rombout,
See this post in the other topic you posted the same problem.
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Bump, bump bump!!
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I added preliminary support for refolding to my unfold tool.
Maybe someone would like to try it?
Download tip.zip from bitcucket.
You can undo and redo the refold, but activating the Tool wipes out the history.
I am not going to ty tyo make it work inside Groups or Components this day. Just works on loose geometry at the moment.
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Wow thanks jim! I'll take it for a run!
I guess the simplest (considering your earlier point about not understanding UV mapping), would be that possibly a temp file be created that records the unfold steps and recalls them in reverse after the user has painted a map to the unfolded geometry!
Cheers mate! Richard
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Yeah, that's about it - it's all in-memory but a temp file is an option. It could become quite complex if I need to allow for interrupted unfolding (if that makes sense.)
As I said, you will probably only get one go at it because re-activating the Unfold tool wipes out the history.
Let me know how it goes.
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Jim mate well done!!!!!
I just made a hex base and followed up a few bent lines > unfolded > mapped the surface > refold and bang all done with mapping perfect!!!!! Wow!
The big issue obviously is that complex models would need to be naved during the unfold and this seems to break the actual unfold itself.
Though at this point it will already make many mapping issues easy to complete!
Thank you thank you thank you!
BTW have never done this - hold does one install the button image?
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