Merge pull request cocos2d#14613 from super626/v3

fix 3d model bug

Author: super626

cocos/3d/CCSprite3D.cpp

@@ -364,6 +364,13 @@ Sprite3D* Sprite3D::createSprite3DNode(NodeData* nodedata,ModelData* modeldata,c
     {
         sprite->setName(nodedata->id);
         auto mesh = Mesh::create(nodedata->id, getMeshIndexData(modeldata->subMeshId));
+        
+        if (_skeleton && modeldata->bones.size())
+        {
+            auto skin = MeshSkin::create(_skeleton, modeldata->bones, modeldata->invBindPose);
+            mesh->setSkin(skin);
+        }
+        
         if (modeldata->matrialId == "" && materialdatas.materials.size())
         {
             const NTextureData* textureData = materialdatas.materials[0].getTextureData(NTextureData::Usage::Diffuse);
@@ -748,7 +755,7 @@ void Sprite3D::draw(Renderer *renderer, const Mat4 &transform, uint32_t flags)
 {
 #if CC_USE_CULLING
     // camera clipping
-    if(Camera::getVisitingCamera() && !Camera::getVisitingCamera()->isVisibleInFrustum(&this->getAABB()))
+    if(_children.size() == 0 && Camera::getVisitingCamera() && !Camera::getVisitingCamera()->isVisibleInFrustum(&getAABB()))
         return;
 #endif