用cocos2d缩放渲染图像会破坏图像质量

Question

使用Cocos2d(v 1.01),如果我按原样显示精灵,我的质量很好,但如果我使用CCRenderTexture,图像质量很差.仅当我放大图像时才会发生这种情况.

参见随附的屏幕截图,原始图像在左侧. 这是我的代码:

CCScene* pScene = CCDirector::sharedDirector()->getRunningScene();

CCSprite* origSprite = CCSprite::spriteWithFile("jigsaw/11.png");
origSprite->setPosition(CCPoint(250,250));
origSprite->setScale(1.3);
pScene->addChild(origSprite, 500);

CCSprite* imageSprite = CCSprite::spriteWithFile("jigsaw/11.png");
CCSize imageSize = imageSprite->boundingBox().size;
CCRenderTexture *rt = CCRenderTexture::renderTextureWithWidthAndHeight(imageSize.width, imageSize.height);
imageSprite->setPosition(ccp(imageSize.width/2, imageSize.height/2));
rt->begin();
imageSprite->visit();
rt->end();
CCSprite *newSprite = CCSprite::spriteWithTexture(rt->getSprite()->getTexture());
delete rt;
newSprite->setFlipY(true);
newSprite->setPosition(CCPoint(750,750));
newSprite->setScale(1.3);
pScene->addChild(newSprite, 500);

Answer 1

好的,我找到了答案.我需要补充一下:

newSprite->getTexture()->setAntiAliasTexParameters();