Fastest way to tile a drawing with pixi.js? - pixi.js

Question

I have a computationally heavy drawing that is rendered by a pixi.js render.
I then create sprites from the renderer view in order to tile the drawing horizontally and I render the sprites on the on-screen canvas (using webgl as auto-detected)
However, I find the whole operation to be still slow. Can you tell how performances could be improved? I'm not sure if RenderTexture could be used instead, and if it would make a significant gain.
Thanks for your help, this is a code extract of my script:
var canvasRenderer = new PIXI.autoDetectRenderer(w, h, {
view : $('#canvas')[0],
clearBeforeRender : false
});
var canvasGraphics = new PIXI.Graphics();
var canvasStage = new PIXI.Container();
canvasStage.addChild(canvasGraphics);
canvasGraphics.beginFill();
var renderer = new PIXI.autoDetectRenderer(width, height);
var graphics = new PIXI.Graphics();
var stage = new PIXI.Container();
stage.addChild(graphics);
graphics.beginFill();
// Whole lotta rects
for (var i in rects) {
graphics.drawRect(
rects[i].left, rects[i].top, rects[i].width, rects[i].height
);
}
graphics.endFill();
renderer.render(stage);
for (var j = 0; j <= loops; j++) {
var sprite = PIXI.Sprite.from(renderer.view);
sprite.x = j * width;
canvasStage.addChild(sprite);
}
}
canvasGraphics.endFill();
canvasRenderer.render(canvasStage);

Answer 1

PIXI has a TilingSprite for exactly this purpose.
If you're drawing graphics, you should use a RenderTexture, and then put that into a TilingSprite.
var renderer = new PIXI.autoDetectRenderer(width, height);
var stage = new PIXI.Container();
//Draw your Graphics
var graphics = new PIXI.Graphics();
graphics.beginFill();
for (var i in rects) {
graphics.drawRect(
rects[i].left, rects[i].top, rects[i].width, rects[i].height
);
}
graphics.endFill();
//Create a RenderTexture to hold the Graphics.
//I don't know the size of your Graphics, so I'm making it up as 50 x 50
var texture = new PIXI.RenderTexture(new PIXI.BaseRenderTexture(50, 50));
//Render the Graphics into the Texture
renderer.render(graphics, texture);
//Create a TilingSprite from the Texture
var tilesprite = new PIXI.extras.TilingSprite(texture, renderer.width, renderer.height);
stage.addChild(tilesprite);
renderer.render(stage);