FPS相機與OpenGL旋轉

我試圖讓它像一個FPS風格的相機，你可以使用鼠標四處看看。我有這樣的工作，但當我四處走動，然後水平觀看時，它會從原始點旋轉一切。我究竟做錯了什麼？FPS相機與OpenGL旋轉

private float moveSpeed = 0.1f; 

private Vector3f camera; 

private float horizontalAngle = 0.0f; 
private float verticleAngle = 0.0f; 

public Game() { 
    Mouse.setGrabbed(true); 
    camera = new Vector3f(0.0f, 0.0f, 0.0f); 
} 

public void input(){ 
    horizontalAngle += Mouse.getDX() * 0.05f; 
    verticleAngle += -Mouse.getDY() * 0.05f; 

    if(Keyboard.isKeyDown(Keyboard.KEY_W)){ 
     camera.x -= moveSpeed * Math.sin(Math.toRadians(horizontalAngle)); 
     camera.z += moveSpeed * Math.cos(Math.toRadians(horizontalAngle)); 
    } 
    if(Keyboard.isKeyDown(Keyboard.KEY_S)){ 
     camera.x += moveSpeed * Math.sin(Math.toRadians(horizontalAngle)); 
     camera.z -= moveSpeed * Math.cos(Math.toRadians(horizontalAngle)); 
    } 
    if(Keyboard.isKeyDown(Keyboard.KEY_A)){ 
     camera.x -= moveSpeed * Math.sin(Math.toRadians(horizontalAngle - 90)); 
     camera.z += moveSpeed * Math.cos(Math.toRadians(horizontalAngle - 90)); 
    } 
    if(Keyboard.isKeyDown(Keyboard.KEY_D)){ 
     camera.x -= moveSpeed * Math.sin(Math.toRadians(horizontalAngle + 90)); 
     camera.z += moveSpeed * Math.cos(Math.toRadians(horizontalAngle + 90)); 
    } 

    if(Keyboard.isKeyDown(Keyboard.KEY_ESCAPE)){ 
     Mouse.setGrabbed(false); 
    } 
} 

public void update(){ 

} 

public void render() { 
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); 

    // draw quad 

    glTranslatef(camera.x, camera.y, camera.z); 
    glRotatef(verticleAngle, 1.0f, 0.0f, 0.0f); 
    glRotatef(horizontalAngle, 0.0f, 1.0f, 0.0f); 


    glBegin(GL_QUADS); 

    glColor3f(1.0f, 0.5f, 0.5f); 
    glVertex3f(0.0f, 0.0f, -5.0f); 
    glVertex3f(1.0f, 0.0f, -5.0f); 
    glVertex3f(1.0f, 1.0f, -5.0f); 
    glVertex3f(0.0f, 1.0f, -5.0f); 

    glEnd(); 


    glRotatef(-horizontalAngle, 0.0f, 1.0f, 0.0f); 
    glRotatef(-verticleAngle, 1.0f, 0.0f, 0.0f); 
    glTranslatef(-camera.x, -camera.y, -camera.z); 

    Display.sync(60); 
    Display.update(); 
}

我正在使用LWJGL和Java。

來源

2013-09-26 user2513924

您需要兩個向量來進行相機旋轉：一個用於相機的位置（u），另一個用於相機的方向（v）（v的長度無關緊要）。然後使用gluLookAt(u.x, u.y, u.z, u.x+v.x, u.y+v.y, u.z+v.z, 0.0, 1.0, 0.0)，這意味着攝像機位於u位置，看着u + v點，向上方向的矢量是（0,1,0）。

來源

2013-09-26 15:04:34 Chen

FPS相機與OpenGL旋轉

回答

相關問題