想要旋轉我的立方體。我怎麼能這樣做

Question

我想旋轉我的立方體，並添加4個按鈕，加快速度向下移動向上移動。你可以幫幫我嗎？顏色是黃色的。 cube.cube下的4個按鈕應該圍繞y軸旋轉。

public class MyGLRenderer implements Renderer { 
Context context; 


Cube cube; 

public MyGLRenderer(Context context) { 

    this.context = context; 


    cube = new Cube(); 
} 

// Call back when the surface is first created or re-created 
@Override 
public void onSurfaceCreated(GL10 gl, EGLConfig config) { 
    // clear-value for color and depth, enabling depth-test, etc. 
    gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // Set color's clear-value to black 
} 

// Call back after onSurfaceCreated() or whenever the window's size changes 
@Override 
public void onSurfaceChanged(GL10 gl, int width, int height) { 
    if (height == 0) 
     height = 1; 
    float aspect = (float) width/height; 

    // Set the viewport (display area) to cover the entire window 
    gl.glViewport(0, 0, width, height); 

    // Select projection matrix: projection matrix or model-view matrix 
    gl.glMatrixMode(GL10.GL_PROJECTION); 
    // Reset projection matrix 
    gl.glLoadIdentity(); 

    GLU.gluPerspective(gl, 45, aspect, 0.1f, 100.f); 

    // Select model-view matrix 
    gl.glMatrixMode(GL10.GL_MODELVIEW); 
    // Reset 
    gl.glLoadIdentity(); 

} 

// Call back to draw the current frame. 
@Override 
public void onDrawFrame(GL10 gl) { 
    // Clear color and depth buffers using clear-value set earlier 
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); 

    // Reset model-view matrix 
    gl.glLoadIdentity(); 
    // Translate into the screen 
    gl.glTranslatef(0.0f, 0.0f, -5.0f); 


    // Draw cube 
    cube.draw(gl); 
} 

}

Answer 1

這是你在找什麼：https://www.opengl.org/sdk/docs/man2/xhtml/glRotate.xml，你必須把它放在的glTranslatef

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