blocks|key|1292443|text|我想你只是想让用户选择不同的纹理/颜色，对吧？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1292444|然后看一看Java3D教程，例如这个：http://www.java3d.org/tutorial.html|offset|length|1292445|我进一步猜你的鞋实际上是两部分的模型，也就是鞋底应该有另一种颜色，而其他的可能会有不同的纹理，对吗？|1292446|在这种情况下，您需要2个模型/形状，每个模型/形状都有自己的外观。然后，例如，改变鞋底的外观，如通过分配不同的材料或改变材料的颜色。|1292447|entityMap|0|LINK|mutability|MUTABLE|url|http://www.java3d.org/tutorial.html^0|0|J|Z|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

I assume you just want the user to select a different texture/color, right?

Then have a look at the Java3D tutorials out there, e.g. this one: <a href="http://www.java3d.org/tutorial.html" rel="nofollow">http://www.java3d.org/tutorial.html</a>

I further guess your shoe is actually a 2-part model, i.e. just the sole should get another color while the rest might get a different texture, right?

In that case, you'd need 2 models/shapes, each with its own appearance. Then, for example, alter the soles appearance as you like, e.g. by assigning a different material or changing the material's color.

blocks|key|1109256|text|首先，复杂的对象通常是使用一些3D编辑软件创建的，比如Blender或。这些程序可以将对象输出到几种不同的文件格式，其中最常见的是.obj文件格式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1109257|file|unordered-list-item|offset|length|1109258|1109259|1109260|另一种常见的格式是.3ds，在我的经验中，它的工作量远远超过了它的价值。他们确实为Java3D制作了一个Java3D文件加载器，该页面可以在这里找到：|1109261|http://www.starfireresearch.com/services/java3d/inspector3ds.html|1109262|1109263|1109264|我给您的建议是只使用.obj文件格式，使用起来要容易得多。您也可以为它制作自己的解析器，这并不像听起来那么难。这样，您就可以确切地了解如何将对象加载到环境中。Java附带了它自己的解析器，关于如何使用它的说明如下：|1109265|http://www.vrupl.evl.uic.edu/LabAccidents/java3d/lesson08/indexa.html|1109266|1109267|1109268|在使用这种文件格式时，我在使用Blender导出的文件时遇到了很多问题，不幸的是，它们可能已经修复了这个问题，但我不确定。当我过去做更多的3D东西时，我只是用艺术的错觉，甚至知道搅拌机是一个更强大的。搅拌机可以在Mac上运行，但在适当的设置下，在windows上运行则要平滑得多。祝好运!如果您需要一些示例代码，请告诉我，我非常乐意为您发布一些示例代码。|1109269|幻象艺术：|1109270|http://www.artofillusion.org|1109271|http://www.artofillusion.org/documentation#|1109272|1109273|1109274|搅拌机：|1109275|http://www.blender.org|1109276|http://www.blender.org/education-help/tutorials/|1109277|1109278|1109279|I‘我不知道你想让用户如何改变对象。如果你想要他们能够改变颜色，或鞋的类型或诸如此类的事情，这不是什么大不了的。如果您希望用户能够更改花边长度或更改实际对象的结构，则需要对3D结构有深入的了解。如果你想改变颜色，只要改变材料。如果你想要改变鞋的类型，只需加载一个不同的鞋对象。希望这对你有帮助。|1109280|在评论中，你也谈到纹理映射，根据我的经验，在搅拌机上做比在“幻象艺术”中要容易得多。我可能会用搅拌机来完成这个任务：|1109281|http://wiki.blender.org/index.php/Doc:2.6/Manual/Textures/Mapping/UV|1109282|1109283|1109284|约翰|1109285|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Wavefront_.obj_file|1|2|3|http://www.artofillusion.org/|4|5|http://www.blender.org/|6|7^0|0|0|4|0|0|0|0|0|0|1T|1|0|0|0|0|0|1X|2|0|0|0|0|0|0|S|3|0|0|17|4|0|0|0|0|0|M|5|0|0|1C|6|0|0|0|0|0|0|1W|7|0|0|0|0^^$0|@$1|2|3|4|5|6|7|23|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|24|8|@]|9|@$E|25|F|26|1|27]]|A|$]]|$1|G|3|-4|5|6|7|28|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|29|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|2A|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|2B|8|@]|9|@$E|2C|F|2D|1|2E]]|A|$]]|$1|M|3|-4|5|6|7|2F|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|2G|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|2H|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|2I|8|@]|9|@$E|2J|F|2K|1|2L]]|A|$]]|$1|S|3|-4|5|6|7|2M|8|@]|9|@]|A|$]]|$1|T|3|-4|5|6|7|2N|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|2O|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|2P|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|D|7|2Q|8|@]|9|@$E|2R|F|2S|1|2T]]|A|$]]|$1|10|3|11|5|D|7|2U|8|@]|9|@$E|2V|F|2W|1|2X]]|A|$]]|$1|12|3|-4|5|6|7|2Y|8|@]|9|@]|A|$]]|$1|13|3|-4|5|6|7|2Z|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|30|8|@]|9|@]|A|$]]|$1|16|3|17|5|D|7|31|8|@]|9|@$E|32|F|33|1|34]]|A|$]]|$1|18|3|19|5|D|7|35|8|@]|9|@$E|36|F|37|1|38]]|A|$]]|$1|1A|3|-4|5|6|7|39|8|@]|9|@]|A|$]]|$1|1B|3|-4|5|6|7|3A|8|@]|9|@]|A|$]]|$1|1C|3|1D|5|6|7|3B|8|@]|9|@]|A|$]]|$1|1E|3|1F|5|6|7|3C|8|@]|9|@]|A|$]]|$1|1G|3|1H|5|D|7|3D|8|@]|9|@$E|3E|F|3F|1|3G]]|A|$]]|$1|1I|3|-4|5|6|7|3H|8|@]|9|@]|A|$]]|$1|1J|3|-4|5|6|7|3I|8|@]|9|@]|A|$]]|$1|1K|3|1L|5|6|7|3J|8|@]|9|@]|A|$]]|$1|1M|3|-4|5|6|7|3K|8|@]|9|@]|A|$]]]|1N|$1O|$5|1P|1Q|1R|A|$1S|1T]]|1U|$5|1P|1Q|1R|A|$1S|L]]|1V|$5|1P|1Q|1R|A|$1S|R]]|1W|$5|1P|1Q|1R|A|$1S|1X]]|1Y|$5|1P|1Q|1R|A|$1S|11]]|1Z|$5|1P|1Q|1R|A|$1S|20]]|21|$5|1P|1Q|1R|A|$1S|19]]|22|$5|1P|1Q|1R|A|$1S|1H]]]]

Ok so first of all, complex objects are usually created using some 3D editing software like Blender or Art of Illusion. These programs can output the object into several different file formats, the most common being the .obj file format: 

<ul>
<li><a href="http://en.wikipedia.org/wiki/Wavefront_.obj_file" rel="nofollow">http://en.wikipedia.org/wiki/Wavefront_.obj_file</a></li>
</ul>

Another common format is .3ds, which in my experience is a lot more work than it's worth. They do make a .3ds file loader for Java3D, the page can be found here:

<ul>
<li><a href="http://www.starfireresearch.com/services/java3d/inspector3ds.html" rel="nofollow">http://www.starfireresearch.com/services/java3d/inspector3ds.html</a></li>
</ul>

My advice for you is to just use the .obj file format, it is a lot easier to use. You can also just make your own parser for it which is not as hard as it sounds. This way you know exactly how your object is being loaded into the environment. Java does come with it's own parser, instructions on how to use it are here:

<ul>
<li><a href="http://www.vrupl.evl.uic.edu/LabAccidents/java3d/lesson08/indexa.html" rel="nofollow">http://www.vrupl.evl.uic.edu/LabAccidents/java3d/lesson08/indexa.html</a></li>
</ul>

I have had a lot of trouble with files exported with Blender while using this file format unfortunately, they may have fixed the problem by now but I'm not sure. When I used to do a lot more 3D stuff I just used Art of Illusion, even know Blender is a lot more powerful. Blender can be run on a Mac but is a lot smoother on windows with the proper setup. Good luck! If you need some example code let me know and I would be more than happy to post some for you.

Art of Illusion:

<ul>
<li><a href="http://www.artofillusion.org" rel="nofollow">http://www.artofillusion.org</a></li>
<li><a href="http://www.artofillusion.org/documentation#" rel="nofollow">http://www.artofillusion.org/documentation#</a></li>
</ul>

Blender: 

<ul>
<li><a href="http://www.blender.org" rel="nofollow">http://www.blender.org</a></li>
<li><a href="http://www.blender.org/education-help/tutorials/" rel="nofollow">http://www.blender.org/education-help/tutorials/</a></li>
</ul>

Im not sure how you want the user to be able to change the object. If you want them to be able to change the color, or the type of shoe or whatnot that is not a huge deal. If you want the user to be able to change the lace length or something where you are changing the actual object's structure, that requires an in depth knowledge of 3D structure. If you want to change a color, just change the material. If you want to be able to change the type of shoe, just load a different shoe object. I hope this was helpful for you.

In the comments, you also talk about texture mapping, which in my experience is a lot easier to do in Blender than it is to do in Art of Illusion. I would probably use blender to accomplish this:

<ul>
<li><a href="http://wiki.blender.org/index.php/Doc:2.6/Manual/Textures/Mapping/UV" rel="nofollow">http://wiki.blender.org/index.php/Doc:2.6/Manual/Textures/Mapping/UV</a></li>
</ul>

John

i am new to java 3d. i have encountered a situation like , i want to load ready made developed 3d model of any object [as an example shoe] developed in 3d modeling software like 3d studio max or Maya in my java program , update its texture or color properties etc. then render it and then display the updated model to the end user.

so i am asking all the 3d experts how should i proceed ahead to accomplish my goal ?
which input should i load into my program ?
how can i update the loaded model , render it and display the updated model to the end user ?

in simple story , i want to give my users ability to modify 3d model by their interactions as such ,
they provided 3d model of shoe for example in default colors and textures &amp; some fields like sole color , if they choose color red then the loaded 3d model's sole is colored red (i.e. updated) and then displayed to end user with red color rubber sole shoe instead of default color shoe.

please, advice me to accomplish my goal.

3d modelling loading , updating and rendering in java

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我对java 3d很陌生。我遇到过这样的情况，我想加载现成的任何物体的三维模型作为一个例子鞋在三维建模软件，如3d工作室max或玛雅在我的java程序，更新其纹理或颜色属性等，然后渲染它，然后显示更新的模型给最终用户。因此，我问所有的3d专家，我应该如何前进，以实现我的目标？哪些输入应该加载到我的程序中？我如何更新加载...

问用java进行三维建模加载、更新和绘制
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