Drawing an image as a subrect of another image

Hello, I’m trying to draw some 2d stuff but I’m missing something. In the code I create a node with sprite2d comp by using a section of another image, but it doesn’t show on the screen. As a base I’m using example 24. In create scene I add:

auto createNode = [&](String spriteName) ->Node* {
    Node* node = scene_->CreateChild();
    StaticSprite2D* spriteComp {node->CreateComponent<StaticSprite2D>()};
    Sprite2D* sprite = cache->GetResource<Sprite2D>(spriteName);
    spriteComp->SetSprite(sprite);
    return node;
};

auto subSpriteShow = [&](){

    int subImageRow = 0;
    int subImageCol = 0;
    
    //load the whole image
    Image* wholeImage = cache->GetResource<Image>("GameData/2D/mona lisa.png");
    int wholeImageSize = wholeImage->GetWidth();
    //images are squared by design
    int subImageSize = wholeImageSize / 4;
    
    //left-top-right-bottom
    IntRect subImageRect = IntRect(
                             subImageCol * subImageSize, subImageRow * subImageSize,
                             subImageCol * subImageSize + subImageSize, subImageRow * subImageSize + subImageSize);
    
    Image* subImage = wholeImage->GetSubimage(subImageRect);
    
    if (!subImage) {
        URHO3D_LOGERROR("Not able to slice image. Aborting.");
        return;
    }
    
    //testing output. it outputs a correct image
    subImage->SavePNG("GameData/2D/mona slice.png");
    
    //create Texture2D
    Texture2D* subTex2D = new Texture2D(context_);
    subTex2D->SetData(subImage);
    subTex2D->SetSize(subImageSize, subImageSize, Graphics::GetRGBAFormat(), TextureUsage::TEXTURE_STATIC);
    
    //create Sprite2D
    Sprite2D* subSprite = new Sprite2D(context_);
    subSprite->SetTexture(subTex2D);
    subSprite->SetRectangle(subImageRect);

    //this works ok, using the created image, and shows it on screen
    //lisaNode = createNode("GameData/2D/mona slice.png");
    
    //this doesn't show anything
    //create node
    lisaNode = scene_->CreateChild("lisaNode");
    lisaNode->SetPosition(Vector3::ZERO);
    
    //create component
    spriteText2d = lisaNode->CreateComponent<StaticSprite2D>(LOCAL);
    spriteText2d->SetSprite(subSprite);
    spriteText2d->SetLayer(100);
    

    
};

subSpriteShow();

If I use the saved image, everything shows ok. There must be st I’m missing in the construction of sub sprite… thanks in advance.

In your subTex2D creation process:

call SetSize() before SetData()

That did the trick. Now something is shown, but feels like kind of overstreched…
Original Image:

Cut Image, saved by subImage->SavePNG:

Image displayed by Sprite2D:

(Size is the same as previous on screen)

Just one more test revealed that:

subSprite->SetRectangle(IntRect(0,0,128,128)) show the image correctly. I was setting the size of the whole image, not the subdivided one.

Thanks again for the help.