Cocos2d-x3.0 区域裁切 的具体应用之游戏公告显示(2)

<0){ clipW=0; } if(clipH<0){ clipH=0; } } if(clipW>0&&clipH>0){ //glScissor(clipX ,clipY ,clipW, clipH); Director::getInstance()->getOpenGLView()->setScissorInPoints(clipX ,clipY ,clipW, clipH);//设定裁切区域大小 mClip=Rect(clipX,clipY,clipW,clipH); } mClipCounter++; } } void HelloWorld::afterDraw(Renderer *renderer, const kmMat4& parentTransform, bool transformUpdated){ _afterDrawCommand.init(_globalZOrder); _afterDrawCommand.func = CC_CALLBACK_0(HelloWorld::onAfterDraw, this,parentTransform, transformUpdated); renderer->addCommand(&_afterDrawCommand); } void HelloWorld::onAfterDraw(const kmMat4& parentTransform, bool parentTransformUpdated){ int clipW=1024; int clipH=768/4; bool needClip=clipW>0&&clipH>0; if(isNeedClip()&&needClip){ mClipCounter--; if(mClipCounter<=0){ glDisable(GL_SCISSOR_TEST); }else{ mClip=saveOldRect; //glScissor(mClip.origin.x ,mClip.origin.y ,mClip.size.width, mClip.size.height); Director::getInstance()->getOpenGLView()->setScissorInPoints(mClip.origin.x ,mClip.origin.y ,mClip.size.width, mClip.size.height);//设定裁剪显示区域 } } }