0603 如何合併圖跟DrawNODE

http://stackoverflow.com/questions/35322773/how-to-blend-two-drawnodes-in-cocos2d

 need some help with cocos2d DrawNodes blending. I have DrawNode with sprite on it:

 And another DrawNode with drawn polygon (polygon area is less than heart sprite). As a result of blending I need to have only a part of heart sprite inside polygon, like this:  My code: TextureNode.h

0down vote

It seems that you want to clip the heart sprite using the polygon as a stencil. In that case. You don't have to blend two DrawNode. Instead, You can use ClippingNode like: auto heartSprite = cocos2d::Sprite::create(fileName); auto stencil = DrawNode::create(); stencil->drawPolygon(verts, count, cocos2d::Color4F::WHITE, 1, cocos2d::Color4F::WHITE); auto clipper = ClippingNode::create(); clipper->setStencil(stencil); clipper->addChild(heartSprite) For more ClippingNode examples, you can refer to the official sample code:https://github.com/cocos2d/cocos2d-x/tree/v3/tests/cpp-tests/Classes/ClippingNodeTest