Questions tagged [jmonkeyengine]

jMonkeyEngine is a 3D game engine written in and for Java.

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Understanding .obj file

I downloaded a 3d model of a car. By judging by the skins and images available model treats wheels and car body as separate nodes. I want to access its child nodes (wheels) to specify animation. But ...
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1answer
28 views

jMonkeyEngine ignores keyboard input

Created a game login form using the Nifty GUI. The interface reacts to the movement and clicking of the mouse, but ignores the input in the text fields. Whether the program is looking for a click ...
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1answer
553 views

Engine and level of detail for maze / labyrinth / dungeon scene?

My question is similar to these: Algorithm for generating a 2d maze To scene graph or not to scene graph? I.e. in this case should I use jME3 or some other engine (I heard Unreal offers a free ...
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1answer
45 views

Trying to get events to work for drag and drop

So I’m playing around with drag and drop with Nifty and I have the drag working. I don’t have a drop set up yet as I’m just trying to get the dragging working at the moment. For the purposes of my ...
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1answer
28 views

JME3 Fragment/Shader not compiling

Here is the fragment shader code (MyShaders/Shader1.frag): void main(){ gl_FragColor = vec4(1.0,1.0,1.0,1.0); } And the vertex shader code (MyShaders/Shader1....
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1answer
398 views

Alternative to world/terrain editing with jmonkey

I have been studying Java for almost a year and have been trying to develop a game using jMonkey. I have tried Unity before but since I only know Java I decided to go with jMonkey. My problem is that ...
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1answer
1k views

Apply a texture on a Box - jMonkeyEngine

How can i wrap a texture (for ex a 4x4 pixels) on a box (1x1x1) in such a way that the texture is repeated and not enlarged to cover all the surface. ...
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1answer
1k views

Teaching game development with Ruby [closed]

I want to teach game development to kids as part of a course (year-long) involving Ruby. Unfortunately it looks like the game development kits available in Ruby (even in the form of bindings) are ...
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2answers
692 views

How do I render endless terrain using TerrainGrid?

I have started to learn game development, using the jMonkey engine. I am able to create single tile of terrain using TerrainQuad, but in the next step, I'm stuck at ...
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2answers
78 views

Limiting GIF animation rate to its frame delay in JME3

I've figured out how to render a GIF image using this library as follows: ...
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3answers
69 views

Locating different models in a single scene

I have a curiosity. Say I wanted to create a big forest using Blender, in this forest I'd like to have a campfire or several campfires. What I could do is create the entire scene in Blender with ...
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1answer
175 views

How can I edit a game level using jmonkeyengine? [closed]

I liked the quake level that comes with jME3. But if I want to edit that level, make it bigger or so, what editor or programming can I use to edit the level? If I open the zip file it's a bunch of ...
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1answer
228 views

My “puck” model object falls right through the “table” model in jMonkeyEngine

So I am trying to learn jMonkey, I have understood everything so far, and I thought I understood how to make objects solid, so things can't go through each other. When I create my Collision shapes, I ...
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4answers
5k views

Looking for JMonkeyEngine tutorials and documentation [closed]

I'm looking for tutorials and documentation for JMonkeyEngine, beside the material on the official website. Any clue?
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2answers
75 views

Nifty TextRenderer object is null

Im new to nifty and Im trying to change text control using nifty in JME application following this tutorial. Below is my TextRenderer code: ...
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3answers
418 views

What caused rotation in exported blender model to jMonkey? (OGRE)

First off, I am very new to jMonkeyEngine 3 and still learning. Not exactly sure what could be causing my snowman to have already been rotated before import. I created him in blender and it was facing ...
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0answers
44 views

Nifty Design view does not refresh

I am using Nifty in JME SDK to make different screens. I stuck in this problem that nifty doesn't refresh its design preview to reflect any changes in xml. But this works: If I close .xml and reopen ...
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1answer
54 views

Cannot find declaration of element nifty JME

I'm new to nifty. I am trying to learn how to create nifty GUI in JMonkey Engine game. I'm going through tutorials and tried to run project. Project runs fine but I get following error when I tried to ...
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2answers
635 views

How to make nifty gui textfield to use a larger font

Hi I have a text field on my screen but its tiny: ...
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2answers
150 views

Clamp view direction vector to nearest axis

In JMonkeyEngine, given any view direction Vector3f instance, I'd like to get a new vector facing the nearest x or z axis (positive or negative), with y set to 0. For example ...
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2answers
100 views

How to add a texture in jmonkey

Hello I have a pretty simple question, I'm new to jmonkey and I want to add a .jpg file to the /assets/textures folder and dragging and dropping the file doesn't appear to work for me.
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1answer
324 views

AI for Minesweeper like game

I am currently developing a Puzzle/RPG game which works a little bit like Minesweeper. You have a Field of Tiles and 2, 3 or 4 different colors from which you can choose. Now you have to uncover tiles ...
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0answers
401 views

Moving an object (pong paddle) along the x,y axis in 3d-space with mouse/touch

First of all: Sorry, my English isn't quiet good, I'm very new in 3D and I'am using JMonkeyEngine. What I would like to do?: A 3d pong game and I want to control the paddle with the mousecursor and/...
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0answers
740 views

How to identify whether the boundingvolume intersects with walls or floor when it doesnt return normals?

My game in jMonkey is the kind that use will have to place objects in a scene (which consist of walls and slabs and floor). All my models are centered at origin. When the user click a point I use ray ...
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1answer
349 views

Get the game state using Multithreading in Java Monkey Engine 3

I’ve been trying out Java Monkey’s multi threading recently via the wiki’s tutorial. Since I just wanted to test a prototype clinet, I made a program which creates some cubes using the ‘Cubes’ library ...
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77 views

manipulate textures in real time using GPU

I'm looking for some way (tutorial, library or build in option) to draw texture on JMonkey in real time. So I have 2 images one a normal texture that is fairly big(4000x4000) and another much smaller ...
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1answer
491 views

Jmonkey loading texture from fails

I have the following basic code: ...
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2answers
104 views

How to determine this kind of vector?

Take a look at the picture. I've got a camera(brown) and its ray(red). As I know ray has a direction and unlimited length(if you don't set it yourself). But now I need to determine ray's vector that ...
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1answer
175 views

LWJGL exception in JME3-JFX!

Video playback in jMonkeyEngine 3.0 seemed to be in limbo for quite a while until I chanced upon this thread about playing videos by integrating JavaFX 2 into the JME3 framework. This coupled with the ...
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2answers
144 views

How can I prevent resizing of an Ogre3D object once imported into jMonkeyEngine?

I created an object in Blender: Then I exported it as a mesh.xml file and attached it to the game scene: [Note: The gray color is the ground.] In the game I end up with have a smaller, ...
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1answer
1k views

How do I draw a line using jme3.scene.shape.Line in JMonkeyEngine 3.0?

I can successfully create the object, but it can't be attached to the rootNode. What can I do to make the line appear? I'll also would like to know how to reverse the effect(making it disappear) ...
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2answers
383 views

terrain not properly rendering

I'm extending the terrain quad with resources from various tutorials and have the following code: ...
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0answers
170 views

JMonkey scrolling 3D text

I need to make a scrolling 3D text, which is not a gui. I have a 3d box display over which I should render a long scrolling text. I can render and move text, but how do I cut/make invisible the part ...
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2answers
786 views

What are “local” and “global” rotations?

Each node in jME3 has local and global rotations, which can be expressed in quaternions. What are they? Documentation has no clues, about in which state rotations are zero?
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1answer
1k views

How can I import a .3ds file into JMonkeyEngine 3?

I am trying to import an animated character body (with skeleton) from 3D Studio Max to JMonkeyEngine 3, but while we succeeded at importing some animations, we cannot seem to export the skeleton to <...
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1answer
438 views

What is wrong with my smooth shading code?

I am having trouble getting smooth lighting to work in Java Monkey Engine. My terrain is voxel-based, with an iso-surface generated via Marching Cubes over the data field. Up until now, I have been ...
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1answer
232 views

How can I extract the Geometry from a j3o file?

I created a blender file and then converted it into the j3o file. The only way to load the 3d structure in the game is through a Spacial object: ...
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1answer
1k views

How do I make a cube move by rolling?

I am learning jMonkeyEngine by making some small games with it. I have a simple rectangular cube that I want the player to be able to roll around the game world. When he presses the arrow keys, the ...
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1answer
139 views

How can I load a picture with alpha channel in JME?

This code loads a picture into the game: ...
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2answers
3k views

How can I move an object towards another along a straight line

How can I move an object (like a cube) towards another object? Let's say that we have a red cube in the center of a floor, and a blue cube in another location, there aren't objects between this two, ...
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3answers
490 views

JME3 Transparent Image Shows Geometries Behind

I'm using jME3 (JMonkeyEngine). I’m setting a geometry (a box with a bullet hole material/texture) to show transparency using ...
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3answers
8k views

How do I export my Blender model to OGRE XML format for jMonkeyEngine 3?

I'm an amateur software engineer with several simple 2D-game projects under my belt. I'v recently turned my attention towards creating a basic 3D game, nothing too fancy, just to get a grip on things. ...
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1answer
169 views

How to place an object so that it does not overlap the objects in my scene?

In my game, the user has to click at a point to place an object (mesh). I can cast a ray and find the horizontal point where the object can be translated and then attached to rootNode to display it. ...
3
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1answer
858 views

Models with more than one mesh in JMonkeyEngine

I’m a new jmonkey engine developer and I’m beginning to import models. I tried to import simple models and no problems appeared, but when I export some obj models having more than one mesh in the ...
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1answer
1k views

Can I use jMonkeyEngine to make a closed source game?

Can I just share the jMonkeyEngine code and keep my code closed or would I have to make my game open as well? Sorry if this is a noob question.
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2answers
788 views

Best practise for representing large spaces in a scene graph

I'm attempting to represent a procedurally generated world in a scene graph, specifically in the Jmonkey engine (Jme3). To make this managable I have broken up the world into smaller chunks. Each ...
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1answer
1k views

jMonkeyEngine Pros and Cons

I want to know some good reasons to use jMonkeyEngine for a Java 3d game development tool instead of just creating a game with LWJGL myself? I want to know a good reason I should choose this tool. ...
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1answer
2k views

JMonkey - Create health bar?

How can I create a health bar in JMonkey? Is there some documentation that can help? I am working on a game, specifically “Battleship”, using the JMonkey Engine (JME3). I want to add health bars on ...
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1answer
3k views

How to make NPC AI for my jme3 ninja game

My scene has a main character who is a ninja and an enemy which is a goblin and one monster but the monster has no animation so we can wait with him: How can I make the goblin actually move instead ...
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1answer
538 views

How free is BSD / CC-BY usage?

I looked at blendswap.com where there are models that I want to make walk along a wall in this level. AFAIK I can take this file and sell it or did I misunderstand licensing?