PIXI.RenderTexture

Hint: All DisplayObjects (i.e. Sprites) that render to a RenderTexture should be preloaded otherwise black rectangles will be drawn instead.

Hint-2: The actual memory allocation will happen on first render. You shouldn't create renderTextures each frame just to delete them after, try to reuse them.

A RenderTexture takes a snapshot of any Display Object given to its render method. For example:

let renderer = PIXI.autoDetectRenderer();
let renderTexture = PIXI.RenderTexture.create({ width: 800, height: 600 });
let sprite = PIXI.Sprite.from("spinObj_01.png");

sprite.position.x = 800/2;
sprite.position.y = 600/2;
sprite.anchor.x = 0.5;
sprite.anchor.y = 0.5;

renderer.render(sprite, {renderTexture});

Note that you should not create a new renderer, but reuse the same one as the rest of the application.

The Sprite in this case will be rendered using its local transform. To render this sprite at 0,0 you can clear the transform

sprite.setTransform()

let renderTexture = new PIXI.RenderTexture.create({ width: 100, height: 100 });

renderer.render(sprite, {renderTexture});  // Renders to center of RenderTexture