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我最近一直在学习OpenGL(Cocoa)。我在这里遇到了一个问题。当我尝试初始化深度缓存,编译器返回GDB: Program received signal: "EXC_BAD_ACCESS".
下面的代码:为什么这个深度缓存设置不起作用
-(id)init {
[super init];
[self initGL];
return self;
}
-(void)initGL {
glClearDepth(1.0); // Depth buffer setup
glEnable(GL_DEPTH_TEST); // Enable depth testing
glDepthFunc(GL_LEQUAL);
}
-(void) drawRect: (NSRect)bounds {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60.0f, 1.33333f, 0.1f, 100.0f);
glTranslatef(-1.5f, 0.0f, -6.0f);
glRotatef(10, 1.0f, 0.0f, 0.0f);
glRotatef(10, 0.0f, 1.0f, 0.0f);
glRotatef(10, 0.0f, 0.0f, 1.0f);
glBegin(GL_TRIANGLES); // Draw a triangle
glColor3f(1.0f, 0.0f, 0.0f); // Set color to red
glVertex3f( 0.0f, 1.0f, 0.0f); // Top of front
glColor3f(0.0f, 1.0f, 0.0f); // Set color to green
glVertex3f(-1.0f, -1.0f, 1.0f); // Bottom left of front
glColor3f(0.0f, 0.0f, 1.0f); // Set color to blue
glVertex3f( 1.0f, -1.0f, 1.0f); // Bottom right of front
glColor3f(1.0f, 0.0f, 0.0f); // Red
glVertex3f(0.0f, 1.0f, 0.0f); // Top of right side
glColor3f(0.0f, 0.0f, 1.0f); // Blue
glVertex3f(1.0f, -1.0f, 1.0f); // Left of right side
glColor3f(0.0f, 1.0f, 0.0f); // Green
glVertex3f(1.0f, -1.0f, -1.0f); // Right of right side
glColor3f(1.0f, 0.0f, 0.0f); // Red
glVertex3f(0.0f, 1.0f, 0.0f); // Top of back side
glColor3f(0.0f, 1.0f, 0.0f); // Green
glVertex3f(1.0f, -1.0f, -1.0f); // Left of back side
glColor3f(0.0f, 0.0f, 1.0f); // Blue
glVertex3f(-1.0f, -1.0f, -1.0f); // Right of back side
glColor3f(1.0f, 0.0f, 0.0f); // Red
glVertex3f(0.0f, 1.0f, 0.0f); // Top of left side
glColor3f(0.0f, 0.0f, 1.0f); // Blue
glVertex3f(-1.0f, -1.0f, -1.0f); // Left of left side
glColor3f(0.0f, 1.0f, 0.0f); // Green
glVertex3f(-1.0f, -1.0f, 1.0f); // Right of left side
glEnd();
glFlush();
}
如果我删除了3行深度测试中,打开应用程序的无缝连接。