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POGame Events run fine, but scene does not render
 

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  1. POGame Events run fine, but scene does not render
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    <p>I am creating my own simple game engine for use in some of my upcoming projects. I have a world Object that stores a bunch of objects that extend a base class RenderObject.</p> <p>RenderObject contains things like scale rotation position smooth shading or not, etc. and forces all extending classes to implement their own method render().</p> <p>To navigate my world, I have an FPS style camera control setup, which I've tested via system.out.println() to check pitch and yaw and it's working correctly.</p> <p><strong>However none of my objects are rendering. My world objet has a method called renderObjects() which cycles through all the objects in the world and calls the render() function of them.</strong> <em>FIXED - New problem... Now I'm getting 4 2x2 pixel dots that randomly fly around, in a specific place. and then I move my mouse the entire cluster moves. Each game tick the onUpdate() method is called, and then lookThrough()</em></p> <p>FPSCameraControl.java</p> <pre><code>public class FPSCameraControl { private boolean DEBUG = false; public Vector3f position = null; public float yaw = 0.0f; public float pitch = 0.0f; public FPSCameraControl(float x, float y, float z) { position = new Vector3f(x, y, z); } public void yaw_(float amount) { yaw -= amount; if(yaw&gt;360){ yaw=0+(yaw-360); } if(yaw&lt;1){ yaw=360-(1-yaw); } } public void pitch_(float amount) { pitch -= amount; if(pitch&gt;=155) { pitch=155; } if(pitch&lt;=25) { pitch=25; } } public void walkForward(float distance) { position.x -= -distance * (float)Math.sin(Math.toRadians(yaw)); position.z += -distance * (float)Math.cos(Math.toRadians(yaw)); } public void walkBackwards(float distance) { position.x += -distance * (float)Math.sin(Math.toRadians(yaw)); position.z -= -distance * (float)Math.cos(Math.toRadians(yaw)); } public void strafeLeft(float distance) { position.x -= distance * (float)Math.sin(Math.toRadians(yaw-90)); position.z += distance * (float)Math.cos(Math.toRadians(yaw-90)); } public void strafeRight(float distance) { position.x -= distance * (float)Math.sin(Math.toRadians(yaw+90)); position.z += distance * (float)Math.cos(Math.toRadians(yaw+90)); } public void lookThrough() { GL11.glRotatef(pitch, 1.0f, 0.0f, 0.0f); GL11.glRotatef(yaw, 0.0f, 1.0f, 0.0f); GL11.glTranslatef(position.x, position.y, position.z); } public void onUpdate() { debug("Updating View"); //Calculate Sensitivity float sen = (0.02F*10); debug("Sensitivity: " + sen); //Get Center Of Screen int cx = Display.getDisplayMode().getWidth()/2; int cy = Display.getDisplayMode().getHeight()/2; //Get Mouse Position From Center int x = Mouse.getX()-cx; int y = Mouse.getY()-cy; debug("Mouse Moved: " + x + ", " + y); //Apply Inverting If Set //Apply Sensitivity float _yaw = (x*sen); float _pitch = (y*sen); yaw_(_yaw); pitch_(_pitch); debug("New Yaw: " + yaw); debug("New Pitch: " + pitch); UpdatePosition(); //SET MOUSE TO CENTER Mouse.setCursorPosition(cx, cy); lookThrough(); } public void printROT() { System.out.println("Pitch : "+pitch); System.out.println("Yaw : "+yaw); System.out.println(); System.out.println("XYZ : "+position.x+", "+position.y+", "+position.z); } public void debug(String msg) { if(DEBUG) { System.out.println(msg); } } public void UpdatePosition() { float f=0; float b=0; float r=0; float l=0; boolean moved =false; boolean shift = Keyboard.isKeyDown(Keyboard.KEY_LSHIFT); if(Keyboard.isKeyDown(Keyboard.KEY_W)) { if(shift) { f=0.04F; } else { f=0.02F; } moved=true; } if(Keyboard.isKeyDown(Keyboard.KEY_S)) { if(shift) { b=0.04F; } else { b=0.02F; } moved=true; } if(Keyboard.isKeyDown(Keyboard.KEY_D)) { if(shift) { r=0.025F; } else { r=0.016F; } moved=true; } if(Keyboard.isKeyDown(Keyboard.KEY_A)) { if(shift) { l=0.02F; } else { l=0.016F; } moved=true; } if(moved) { walkForward(f); walkBackwards(b); strafeLeft(l); strafeRight(r); } } } </code></pre> <p>RenderObject.java</p> <pre><code>public abstract class RenderObject { public double [] location = new double [] {0, 0, 0}; public double [] rotation = new double [] {0, 0, 0}; public double [] scale = new double [] {1, 1, 1}; public Color color = new Color(180, 180, 180); public boolean smooth = false; public RenderObject parent = null; public LinkedList&lt;RenderObject&gt; children = new LinkedList&lt;RenderObject&gt;(); public abstract void render(); public void setScale(double x, double y, double z) { scale = new double[]{x, y, z}; } public void setParent(RenderObject object) { parent = object; } public void removeParent() { parent = null; } public RenderObject getParent() { return parent; } public void addChild(RenderObject object) { object.setParent(this); children.add(object); } public void removeChild(RenderObject object) { if(children.contains(object)) { object.removeParent(); children.remove(object); } } } </code></pre> <p>And RenderCube.java</p> <pre><code>public class RenderCube extends RenderObject { @Override public void render() { if(smooth) { GL11.glShadeModel(GL11.GL_SMOOTH); } else { GL11.glShadeModel(GL11.GL_FLAT); } GL11.glBegin(GL11.GL_QUADS); GL11.glPushMatrix(); GL11.glColor3b( color.getRedByte(),color.getGreenByte(), color.getBlueByte() ); GL11.glRotated(rotation[0], 1.0, 0.0, 0.0); GL11.glRotated(rotation[1], 0.0, 1.0, 0.0); GL11.glRotated(rotation[2], 0.0, 0.0, 1.0); //TOP GL11.glNormal3d(0.0, 1.0, 0.0); GL11.glVertex3d(location[0]-scale[0], location[1]+scale[1], location[2]-scale[2]); GL11.glVertex3d(location[0]-scale[0], location[1]+scale[1], location[2]+scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]+scale[1], location[2]+scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]+scale[1], location[2]-scale[2]); //BOTTOM GL11.glNormal3d(0.0, -1.0, 0.0); GL11.glVertex3d(location[0]-scale[0], location[1]-scale[1], location[2]-scale[2]); GL11.glVertex3d(location[0]-scale[0], location[1]-scale[1], location[2]+scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]-scale[1], location[2]+scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]-scale[1], location[2]-scale[2]); //FRONT GL11.glNormal3d(0.0, 0.0, 1.0); GL11.glVertex3d(location[0]-scale[0], location[1]+scale[1], location[2]+scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]+scale[1], location[2]+scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]-scale[1], location[2]+scale[2]); GL11.glVertex3d(location[0]-scale[0], location[1]-scale[1], location[2]+scale[2]); //BACK GL11.glNormal3d(0.0, 0.0, -1.0); GL11.glVertex3d(location[0]-scale[0], location[1]+scale[1], location[2]-scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]+scale[1], location[2]-scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]-scale[1], location[2]-scale[2]); GL11.glVertex3d(location[0]-scale[0], location[1]-scale[1], location[2]-scale[2]); //RIGHT GL11.glNormal3d(1.0, 0.0, 0.0); GL11.glVertex3d(location[0]+scale[0], location[1]+scale[1], location[2]+scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]+scale[1], location[2]-scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]-scale[1], location[2]-scale[2]); GL11.glVertex3d(location[0]+scale[0], location[1]-scale[1], location[2]+scale[2]); //LEFT GL11.glNormal3d(-1.0, 0.0, 0.0); GL11.glVertex3d(location[0]-scale[0], location[1]+scale[1], location[2]+scale[2]); GL11.glVertex3d(location[0]-scale[0], location[1]+scale[1], location[2]-scale[2]); GL11.glVertex3d(location[0]-scale[0], location[1]-scale[1], location[2]-scale[2]); GL11.glVertex3d(location[0]-scale[0], location[1]-scale[1], location[2]+scale[2]); Color _color = new Color(180, 180, 180); GL11.glColor3b( _color.getRedByte(),_color.getGreenByte(), _color.getBlueByte() ); GL11.glPopMatrix(); GL11.glEnd(); } } </code></pre> <p>Does anyone see what might not be working? Cause I don't.</p>
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    1. PO
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      1. PTAnswer
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    1. USD3_JMultiply
    1. USD3_JMultiply
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    1. This table or related slice is empty.
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    1. COI'm really not a pro in java 3d graphics but I never see you swapping the front and back buffers.
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      1. POGame Events run fine, but scene does not render
      1. USAnthony Vallée-Dubois
    2. COin my main loop I am calling Display.update() if that's what you are refering to.
      singulars
      1. POGame Events run fine, but scene does not render
      1. USD3_JMultiply
    3. COTry looking at this question: http://stackoverflow.com/questions/8950138/java-lwjgl-when-i-call-gl11-glend-the-polygon-disappears, maybe it can help.
      singulars
      1. POGame Events run fine, but scene does not render
      1. USAnthony Vallée-Dubois
 

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