I was searching a way to emulate 3d graphics. I found the cherno project, but i realized that it doesn't explain correctly the way to obtain the 3d view. Is there a good tutorial (or a good explanation) that shows correctly how to do it (or how games like prelude of the chambered work with 3d graphics)? (whithout any libraries, only pure java)
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I created a simple Java application using JavaFX. I would like to integrate a 3D viewer on my window with which I can interact with the mouse (only to rotate the 3D object).
Is it possible to achieve such a thing in Java with JavaFX?
The purpose of my project would be to display a 3D object from a .obj file.
I use java 8 and I looked at Java 3D but I can not find many examples on the Internet.
This is all possible with JavaFX which directly supports some 3D graphics.
Start with a general tutorial here:
https://docs.oracle.com/javase/8/javafx/graphics-tutorial/javafx-3d-graphics.htm
and then use the model loaders from here:
http://www.interactivemesh.org/models/jfx3dimporter.html
I have a data flow diagram (a diagram that looks like a flow chart). It has a set of specific geometrical components like rectangles, circles, ellipses and arrows.
What I'm trying to achieve is to detect these shapes and be able to know which component is connected to which component (through the lines) and finally read the text inside each one to extract data from the diagram and do further processing. It is also notable to mention that the diagram will not be drawn by hand but computer generated so we don't have to worry about angles and ratios being inaccurate.
I'm currently working in Java and I was wondering if this is going to be possible since Java is not the best language when it comes to image processing (correct me if I'm wrong). And if it's possible I'd you guys to point out where I should start looking.
I think Java is fine, and it has many libraries to process images. ImageJ is just one example. Personally, I like to use Python, so I write scripts in this language using Java API of the DMelt platform. Look at the documentation of this projecst, wiki. Here is a link to a few examples.
Doing this in Java wasn't a great idea because mainly the lack of online resources. After a good amount of research, I found that the best and the easiest approach was the use of C# and Emgu CV which is a cross platform .Net wrapper to the OpenCV image processing library.
This example helped me to get started with detecting basic geometrical shapes like Lines, Rectangles and Triangles.
So as you can probably tell from my question I am very new at all of this. I am creating a small "particle simulator" (really just gravity thing). I am modeling both X and Y positions. My question is how do I incorporate graphics. I don't really care about re-working my existing code (in java application format). In my prevois research I came along Jquery and Css but I am not sure on how to implement either or them. Also in researcher I found java graphics but I am not sure on what or if library's are involved in making that would I only found commands. I have used them before but that was in a fake environment(codeacdemy). I have created a small GUI in netbeans using a Jframe. That leads into a somewhat second question of what would I use in a GUI to have something graphically involved.
here's a tutorial on how to use graphics in java:
http://docs.oracle.com/javase/tutorial/uiswing/painting/index.html
I'd like to render a very simple 3D scene in a java applet. I could do all the math myself and render that to a bitmap, but as I'm sure I'm not the first person in history to have to draw a few cubes to the screen, I was wondering how this is usually done.
Every place I've read has said either Java3D or LWJGL, but as I understand it these rely on platform-dependent code and need to be installed separately from Java, making them both unsuitable for graphics.
So how is this usually done?
This old page lists the demos/apps/libraries of 3D Java applets with no hardware dependencies. Unfortunately very few are open-source, others are not even downloadable.
Personally I recommend you to experiment with Java 1.1 3D renderer by Ken Perlin, which has source code available and free to use for academic purposes.
EDIT: jGL is another Java 3D library with no hardware dependencies. It mimics OpenGL 1.* API. It is licensed under GNU Lesser General Public License (LGPL).
In a plug-in 2 JRE (1.6.0_10+), you can use JWS extensions for embedded applets. This is important because JWS makes it much easier to ensure the correct binaries are on the run-time class path. AFAIU JOGL and Java 3D both offer JWS extensions for their APIs.
Should you choose to go that way, please make the applet has the draggable parameter added, so the end user might choose if they want a (mostly useless) browser window wrapped around a 3D animation.
I ran into similar problems when I needed to do some 3d rendering in an applet. My solution was to simply implement from scratch a 3d rendering library in Java. The fear was that it would be a poor performer but on an I5 processor, this proved to not be the case. The added advantage is that I was able to write the library in the way I always wanted graphics to be done. The real advantage,, though, is that it will run regardless of any need to have some graphics library installed on the client and without regard to any graphics card dependencies.
I will gladly share a subset of this code to anyone who wants to look at it.
Could you use JOGL?
http://download.java.net/media/jogl/demos/www/applettest-jnlp.html
I'm not a Java guy, but 2/3 years ago when I was at univeristy I had the same problem :)
I've tried jogl... and for noob in Java like myself I found it too complicated to configure and write something using it.
I used Java3d and it worked like a charm, the only problem I had back then, was that Java3d did not worked with all graphic cards. But fortunatelly it worked with computers at my univeristy :)
I want to begin developing 2D Java games for phones (on J2ME) therefore I'd like to know if any libraries or "engines" exist to help out in the various graphical tasks:
Drawing text with pixel fonts?
Drawing bitmaps for sprites with multiple frames like animated GIFs?
Drawing graphics with code, lines, beziers, flood-filling and gradient fills?
Ordering / layering of sprites?
Or maybe a great book exists, that gives you enough code samples to get off the ground quickly?
MIDP (JSR-118) includes the basics (most of the things you listed above) mainly in the javax.microedition.lcdui and javax.microedition.lcdui.game namespaces.
I didn't use it myself, but heard some good reference on here.
And here is even a list of libraries, you might need.
There was a book released quite a few years ago called Developing Games in Java by David Brackeen.
That covers the basics of 2d and 3d development in pure Java as well as how to handle time jumps and update the physical properties of your game characters. It is a good introduction to the topic.