现在我正试图在Cocos2d中绘制一个多边形,但我需要它在背景上,我如何更改绘图的z索引并将其作为首要任务,这样我就可以看到线,而不是被背景覆盖?
以下是绘制方法:
我决定把它做成一条线而不是多边形,并调整它的宽度,但其他方面都是一样的。。。
-(void) draw {
glColor4f(1.0f, 0.0f, 0.0f, 1.0f);
glLineWidth(5.0f);
ccDrawLine(healthBar[0], healthBar[1]);
}
现在我正试图在Cocos2d中绘制一个多边形,但我需要它在背景上,我如何更改绘图的z索引并将其作为首要任务,这样我就可以看到线,而不是被背景覆盖?
以下是绘制方法:
我决定把它做成一条线而不是多边形,并调整它的宽度,但其他方面都是一样的。。。
-(void) draw {
glColor4f(1.0f, 0.0f, 0.0f, 1.0f);
glLineWidth(5.0f);
ccDrawLine(healthBar[0], healthBar[1]);
}
使用CCNode的<code>reorderChild</code>函数。把你的矩形放在背景上
-(void) reorderChild:(CCNode *) child z:(int) zOrder
在应用程序代理中,您需要修改GLView,使其启用深度。然后,您应该能够修改绘图调用的深度。在您的应用程序委派中,查找以下内容:
EAGLView *glView = [EAGLView viewWithFrame:[window bounds]
pixelFormat:kEAGLColorFormatRGBA8 // kEAGLColorFormatRGBA8
depthFormat:0 // GL_DEPTH_COMPONENT16_OES
];
将0
更改为GL_DEPTH_COMPONENT16_OES
或GL_DEPTH-COMPONENT24_OES
。
编辑:
我不熟悉OpenGL,但可能此页面将对您有所帮助。
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