Possible to also saveToFile thumbnail of RenderTexture?

[hawkwood]

I’m using a RenderTexture to save a portion of the screen to a file at one resolution, 2048x2048, and I would also like to save out a smaller version of that image, 25% or 50% smaller. I realize that I could do this by re-rendering that portion again with a different RenderTexture, but wanted to check if someone knew of a faster (processor wise) way to take that existing image/texture and scale it and save to file without re-rendering it?

[smitpatel88]

May be this will help you.

[SOLVED] How to really resize a Sprite (to avoid scaling it)

Here an example for background image, of course you have to create a class to automate this, not implementing in each image: // Screen real dimensions auto vSize = Director::getInstance()->getVisibleSize(); auto vWidth = vSize.width; auto vHeight = vSize.height; // Original image auto backOrig = Sprite::create( “back_3200x2000.png” ); auto oWidth = backOrig->getContentSize().width; auto oHeight = backOrig->getContentSize().height; backOrig->setFlippedY( true ); backOrig->setScale( vWid…