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 & 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.
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:
http://en.wikipedia.org/wiki/Wavefront_.obj_file
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:
http://www.starfireresearch.com/services/java3d/inspector3ds.html
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:
http://www.vrupl.evl.uic.edu/LabAccidents/java3d/lesson08/indexa.html
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:
http://www.artofillusion.org
http://www.artofillusion.org/documentation#
Blender:
http://www.blender.org
http://www.blender.org/education-help/tutorials/
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:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Textures/Mapping/UV
John
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: http://www.java3d.org/tutorial.html
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.
Related
I own a sports apparel company and I'm looking to have an applet built that will allow customers to see how their team names will look in certain colors on jerseys. Below you can see the final result of a competitor site's Flash applet where text is rendered on 2D surfaces/images.
My requirements: I need users to be able to set the font, primary text color, outline text color, and text style (arched or straight).
So my question-- Is this sort of text rendering possible with only Javascript/PHP?
If so, what limitations do you for see? I've been told the arching and outline text color may be issues. I've also been told that I may have to upload library files to a server where the actual rendering may take place.
If not, what scripting would you guys recommend? I'm trying to stay away from Flash because it's slow and costly.
I'll be passing this onto our developers so please feel free to be as detailed as possible. I figure'd I'd save them some leg work!
Thank you!
Depending on how complex you want your graphics to be, html5 drawing abilities could be used. Check Raphaël library, for instance, webGL/canvas renderers already have a lot of features in modern browsers.
As of the solution with server rendering, it's also possible with gd2(php), but imho that would be less convenient, at least try something different from php (btw, what's your backend running on?)
Your competitor's solution with java applet honestly seems the easiest, except that it requires jre, which few people are eager to install =)
That's kind-of a high level question, but yes you can definitely use javascript for it.
If there's a problem with getting characters to look right, you can always save each letter as a separate image and have javascript place them next to each other in preview. I'd try to see how close you could get with the existing fonts first.
Layering the text: one color large font, then a different color smaller font will give you the outline effect your looking for.
I'm developing a system in Java 3D, which consists of a main window where I have an object that I can manipulate (rotate, translate), and I have 3 other smaller windows that show different views from this same object, but can't directly manipulate the object.
The next thing I want to do is to reflect the actions I make in the main window to the other windows, in real time.
Does anyone have any idea of how I can proceed in order to do this?
You should define cameras fo the other windows in a fixed position, and render the object with the same world matrix, but with the different camera's view and projection. Probablyyou already have a code to render the object, you only need to use different cameras for that.
Without any code it is the most precise answer, I believe.
I want to create a timeline-based editing GUI in java - in the style of a video-editing software (such as adobe premiere for example). Below is an image, how I have the GUI in mind (sorry for not including it directly - as a new user that feature is disabled):
Whats currently implemented is just the timeline-slider at the top (with JSlider) - all the rest is just made up with Photoshop (also the black-line that goes down from the slider, through the layers).
Now my question is not very specific, I just wanted to get some input how I could implement the rest as nice as possible. To be a little bit more precise, I would appreciate hints to the following topics very much:
How to organize the whole gui - concerning the time indicator-line
which goes from the top to the bottom through all the layers?
How to visualize the waveform, are there good (and free) packages
that can be used? (audio files are either MP3 or WAV)
Which element to use for the text-segment layers (they should be draggable & droppable somehow) -> JLabels, JButtons, how to best solve the drag-n-drop feature?
You see I have still some work ahead of me, any good advice or point to the right direction would be very kind!
For the waveform issue you could take a look to this question and the accepted answer. The class creates a PNG image file, but you should be able, instead of saving the image, just display it in your programm.
The drag n' drop thing is well explained in this tutorial by Oracle.
I need to make kind of a game in Java but I am a total beginner. It has to be applicable to the web and I need to use images on it and action listeners. So, do you recommend any site to know how to begin?
The description of the game (it is not really a game but it implements things that usually are in a game) is this:
Show a matrix of images of 3x3 elements, then, hide them and put instead empty squares. The images shown in the matrix, must remain in the lower part of the screen just below the empty squares and they must be randomly positioned. The user, must click one image and put it on the correct empty square. The result, must be, how many images were correctly positioned, the time it took to end the game, the time between mouse clicked and released for each image.
For additional information, I want you to know that this application is for a friend of mine who studies medicine. He wants this program to test patients who accident and receive hits on their heads. You may think that the description I gave you may not be a good software for that purpose, and in fact, it may be not, but, once I know the management of all that is required (Images, MouseListeners, how to introduce it to a web etc), I will be able to make a better product. So, please tell me, how can I begin?. What do I need to know?
I would start here. Except for some startup boilerplate and the restrictions of the sandbax (which, based on your description, you will b unlikely to encounter), there is no fundamental difference in an applet from normal code.
I'm trying to implement a small-scale strategy, taking turns game
implemented in Java, GUI is made with JFace and SWT.
My challenge is to write a GUI implementation of the world map,
where countries will act as clickable buttons. However, countries
have no fixed boundaries, no rectangular shape, and simply no way
I can think of to be described in a grid layout.
This is my first time trying to implement a project of this type,
please advise
If it's a tile based map (like at Civilization) or it's displayed as pixmap, you could save the ownership of each tile/pixel in a two-dimensional array. Just display the map a a simple, clickable pixmap in a canvas an add a MouseListener. If you get a click event at the coordinates (X,Y), you can just get your country like:
Country clickedCountry = myCountriesOnMap[X][Y];
... in your Listener implementing the MouseListener interface. myCountriesOnMap would be of type Country[][].
Of course, you will need an algorithm that will resolve the ownership for each tile/pixel at startup or if a territory gets conquered (I don't know, if this may happen). May be you will have to define your countries as polygons (like you would do it for a HTML map). I cannot help you on this, as I haven't done anything similar jet, but I'm sure you will find something on Google.
Greetings
Sacher
Try to use the OpenStreetMap data. It contains exact country borders and good image export possibilities.
The Key:border tag will show you all borders. You could extract it and calculate your clickable areas.