Hello,

First of all thank you Noch for sharing your code.
I am using Cocos2d-X 3.1 and I am interested in doing the same.
I have also ported this code but all I get is a black rectangle instead of the attachment.

Here is my code:

In SkeletonAnimation.h I added:

bool setTexture2D(cocos2d::Texture2D* texture, const char* slotName);
bool setSprite(cocos2d::Sprite* sprite, const char* slotName);
spRegionAttachment* regionWithTexture2d(cocos2d::Texture2D* tex2d, const char* name);

in SkeletonAnimation.cpp I added :

bool SkeletonAnimation::setTexture2D(cocos2d::Texture2D* texture,const char* slotName){
   spRegionAttachment *reg = this->regionWithTexture2d(texture,slotName);
   spSlot* slot = this->findSlot(slotName);
   if ((slot!=NULL)&&(reg!=NULL)) {
      spSlot_setAttachment(slot,(spAttachment*)reg);
      return true;
   }else{
      return false;
   }
   
   return false;
}
   
bool SkeletonAnimation::setSprite(cocos2d::Sprite* sprite,const char* slotName){
   //render for get all CCSprite setting
   sprite->setPosition(Vec2(sprite->getContentSize().width,sprite->getContentSize().height));
   sprite->setAnchorPoint(Vec2(0,0)); //set sprite to origin
   sprite->setRotation(180); //the rendered texture will flip
   sprite->setFlippedX(true); // flip back
      
   RenderTexture* rt = RenderTexture::create(sprite->getContentSize().width, sprite->getContentSize().height);
      
   rt->beginWithClear(0, 0, 0, 0);//start with clear
   sprite->visit();//visit for draw
   
   rt->end();//end
   
   return this->setTexture2D(rt->getSprite()->getTexture(),slotName); //return
      
}
   
   
spRegionAttachment* SkeletonAnimation::regionWithTexture2d(cocos2d::Texture2D* tex2d, const char* name){
   TextureAtlas* tex = TextureAtlas::createWithTexture(tex2d, 1);   
   spAtlasPage *atPage = spAtlasPage_create(NEW(spAtlas), name);   
   atPage->rendererObject = tex;
   
   atPage->width = tex2d->getContentSizeInPixels().width;
   atPage->height = tex2d->getContentSizeInPixels().height;
      
   spAtlasRegion *reg = spAtlasRegion_create();
   reg->page = atPage;
      
   spRegionAttachment *region = spRegionAttachment_create(name);
   region->rendererObject = reg;
      
   Size size = tex2d->getContentSizeInPixels();
   float u = 0;
   float u2 = 1;
   float v = 0;
   float v2 = 1;
   spRegionAttachment_setUVs(region,u,v,u2,v2,0);
   
   
   spSlot* slot = this->findSlot(name);
   spRegionAttachment* attachment = (spRegionAttachment*)slot->attachment;
      
   region->regionOffsetX = 0;
   region->regionOffsetY = 0;
   region->regionWidth = size.width;
   region->regionHeight = size.height;
   region->regionOriginalWidth = region->regionWidth; // same if not doing whitespace stripping
   region->regionOriginalHeight = region->regionHeight;
   
   
   region->x = attachment->x;
   region->y = attachment->y;
   region->scaleX = 1.0f;//this->nodeScale;//TODO find replacement
   region->scaleY = 1.0f;//this->nodeScale;//TODO find replacement
   region->rotation = attachment->rotation;
   region->width = size.width;
   region->height = size.height;
   spRegionAttachment_updateOffset(region);
   
   return region;
}

I have tried using both setSprite and setTexture2D directly and all I get are black rectangles.

Does anyone see what I am doing wrong?
Shoog how does it compare to your code?
Noch how did you handle the change to AtlasPage_create?
I used "spAtlasPage_create(NEW(spAtlas), name)" could that be the problem?

Thank you for your help.

Nobody has any ideas ?