lwjgl

How do I flip an image horizontally flip with glReadPixels() Bufferedimage and out put with ImageIO?

自作多情 提交于 2019-12-18 08:53:38
问题 How do I flip an Screenshot image? I can't find my problem anywhere else. Example code: /* *@param fileLoc //Location of fileoutput destination *@param format //"png" *@param WIDTH //Display.width(); *@param HEIGHT //Display.height(); */ private void getScreenImage(){ int[] pixels = new int[WIDTH * HEIGHT]; int bindex; // allocate space for RBG pixels ByteBuffer fb = ByteBuffer.allocateDirect(WIDTH * HEIGHT * 3);//.order(ByteOrder.nativeOrder()); // grab a copy of the current frame contents

Getting 'java.lang.UnsatisfiedLinkError': no lwjgl in java.library.path

只谈情不闲聊 提交于 2019-12-17 04:06:06
问题 Note this is different from this question because it does not deal with linking because it's not asking how to link it via the CLI, but the GUI in Eclipse. I have been trying to write a simple program using LWJGL. When I add the library to Eclipse (Kepler 4.3.1 on Windows 7 64bit) and write a program, it does not show red squigglies under the the things which use LWJGL. However, trying to run it gives me the following stacktrace: Exception in thread "main" java.lang.UnsatisfiedLinkError: no

glDrawArrays() behaving weirdly on Mac OS X

萝らか妹 提交于 2019-12-13 20:52:35
问题 I am practicing the usage of VBOs in OpenGL with Java and LWJGL (using this tutorial, and basically copying it's code: http://www.arcsynthesis.org/gltut/index.html) and right now something really weird is happening. I have a window set up and this is my render() function, called inside the main loop: public void render() { FloatBuffer buffer = BufferUtils.createFloatBuffer(3 * 3); buffer.put(-1); buffer.put(-1); buffer.put(0); buffer.put(0); buffer.put(1); buffer.put(0); buffer.put(1); buffer

LWJGL random lines inbenween shapes

℡╲_俬逩灬. 提交于 2019-12-13 09:48:10
问题 I have random lines inbetween my quads in my game which I would like to remove: as you can see, there appear to be lines inbetween the cubes. Does anyone know how to remove them? I am using openGL. Edit: What I mean is is there any OpenGL functions such as glEnable to fix this? 回答1: I'm guessing you have all of your textures on on image? Near the edge of the block, OpenGL is sampling nearby pixels to make it smooth, so on the edge of your dirt block you can see it slightly fading into a stone

I get error “Exception in thread ”main“ org.lwjgl.opengl.OpenGLException: Invalid operation (1282)”, what it is?, how I can fix it?

蓝咒 提交于 2019-12-13 09:16:20
问题 I use NetBeans Programming language:Java OS:Windows 8.1 x64 I try to make game engine with TheBennyBox tutorial. I'm in part 11 and i try to run my project but i get this error message: Exception in thread "main" org.lwjgl.opengl.OpenGLException: Invalid operation (1282) at org.lwjgl.opengl.Util.checkGLError(Util.java:59) at org.lwjgl.opengl.GL20.glUniform1f(GL20.java:338) at com.base.engine.Shader.setUniformf(Shader.java:119) at com.base.engine.Game.update(Game.java:63) at com.base.engine

Reading controller triggers individually with LWJGL

限于喜欢 提交于 2019-12-13 06:43:26
问题 I would like to use a controller with a game I'm writing. I use the LWJGL Controller class to read the controller state. The state of the triggers seems to have been summarised into a single value that represents the sum of the state of both triggers. The left trigger state is a value that varies between -1 and 0, the right between 0 and 1. I currently use the getAxisValue() method to get the combined state. I would like to be able to read these values separately. Is there any way I can do

Include native libraries in a JAR - IntelliJ?

笑着哭i 提交于 2019-12-13 05:49:58
问题 I just started using LWJGL, and it's working fine. But when I export my project to a JAR file, it's not working fine. I found out how I can include my LWJGL JAR in the program JAR file, but I want the natives in there as well, so people don't need to download much s#!t to use my program. How can I do this in IntelliJ? When I run the JAR file, I get a java.lang.UnsatisfiedLinkError: no lwjgl in java.library.path error. I know I can do -Djava.library-path="<path_to_native>" , but I want my

OpenGL transparency not working

烂漫一生 提交于 2019-12-13 05:24:35
问题 I am trying to draw my font texture atlas to the screen using LWJGL, but OpenGL instead draws a solid white square. A working example using my drawing code: import java.awt.image.*; import java.io.*; import java.nio.*; import javax.imageio.*; import org.lwjgl.*; import org.lwjgl.opengl.*; public class OpenGLImageTest { private static int textureID; public static void main(String[] args) throws Exception { Display.setTitle("OpenGL Image Test"); Display.setDisplayMode(new DisplayMode(640, 480))

How to import lwjgl_util

可紊 提交于 2019-12-13 05:18:47
问题 I am trying to make a 3d lwjgl object, and have done so, but am getting an error telling me that I don't have the XPMFile. So I did some research, and have found that I need to load the XPMFile, but can't seem to find out how to do so. So I am wondering how to load the XPMFile for lwjgl_Util. **EDIT* * Ok, I've decided to change the question to fit what I know now. The new Question is: How do you import lwjgl_util, so that you don't get the XPMFile error??? 回答1: have you put lwjgl_util.jar on

LWJGL Textures in VBO

非 Y 不嫁゛ 提交于 2019-12-13 04:37:23
问题 Ok, well I made a simple 3D cube using VBO, and I wanted to load textures onto it. Only problem is that the textures are all messed up, here is my code: public void create() { setup(); render(); } private void makeCube(float x, float y, float z) { int cube = glGenBuffers(); int texture = glGenBuffers(); FloatBuffer cubeBuffer; FloatBuffer textureBuffer; float highX = x + tileSize; float highY = y + tileSize; float highZ = z + tileSize; float[] textureData = new float[]{ 0,0, 1,0, 1,1, 0,1 };