我正在创建自己的简单游戏引擎，用于我即将开展的一些项目。我有一个世界对象，它存储了一堆扩展基类RenderObject的对象。
RenderObject包含诸如缩放旋转位置平滑着色等内容，并强制所有扩展类实现自己的方法render（）。
为了导航我的世界，我有一个FPS风格的摄像机控制设置，我通过system.out.println（）测试它来检查俯仰和偏航并且它正常工作。
但是我的对象都没有渲染。 我的world objet有一个名为renderObjects（）的方法，它循环遍历世界上的所有对象并调用它们的render（）函数。 FIXED - 新问题...... 现在我得到4个2x2像素点，在特定的地方随机飞来飞去。然后我移动我的鼠标整个群集移动。每个游戏勾选onUpdate（）方法被调用，然后lookThrough（）
FPSCameraControl.java
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>360){
yaw=0+(yaw-360);
}
if(yaw<1){
yaw=360-(1-yaw);
}
}
public void pitch_(float amount)
{
pitch -= amount;
if(pitch>=155)
{
pitch=155;
}
if(pitch<=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);
}
}
}
RenderObject.java
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<RenderObject> children = new LinkedList<RenderObject>();
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);
}
}
}
和RenderCube.java
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();
}
}
有人看到可能不起作用的东西吗？因为我没有。
答案 0 :(得分：0)
根本没有渲染。
当我添加：
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glLoadIdentity();
GL11.glOrtho(-500, 500, -281, 281, -1, 1);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
它开始渲染，我没有想到这一点，我在正交视图中进行了渲染。我将其替换为：
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glLoadIdentity();
GLU.gluPerspective(45.0f, ((float) 800) / ((float) 600), 0.1f, 100.0f);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
完全渲染场景。然而，我的相机有点凌乱，但这证明我的发动机到目前为止工作正常。相机不是引擎的一部分，它是我为测试做的，所以“引擎”工作正常。
为了简单起见，我将让World包含一个Camera对象，它将控制观察位置，角度，FoV等。
感谢@pwny的帮助 - 您提供了帮助，只需进行一次简单的更改。