Create texture from an Uint8Array

[mozgovipc]

Hi, I have some (limited) experience with libgdx, and I'm currently experimenting with PixiJS v4.

I'm trying to create (and possibly update in time) a Texture/Sprite from raw RGB data (e.g. UInt8Array), please lmk if this is possible?

Thanks!

[xerver]

We don't currently have an easy way to do data textures. This is something I do want to add soon, because it can be pretty useful for a variety of advanced scenarios.

You can always create a custom ObjectRenderer (see SpriteRenderer and MeshRenderer) and do anything you want with the GL context.

[ivan.popelyshev]

Yeah, PIXI doesnt know about array textures. But pixi-gl-core does! Lets hack that way we have access and PIXI wont know about it:

var tempCanvas = document.createElement(canvas);
tempCanvas.width = 100;
tempCanvas.height = 100;

var baseTex = new BaseTexture(tempCanvas);
renderer.textureManager.updateTexture(baseTex);
baseTex._glTextures[renderer.CONTEXT_UID].upload(100, 100, myDataUint8Array);

There's only one tempCanvas needed, but you have to change its width/height every time you create new texture. Data from tempCanvas wont be used anyway, instead after initial uploading you'll reupload uint8array version. Don't forget that its only BaseTexture, you still have to create Textures and Sprites out of it

P.S. Turn off the GC or it will ruin everything!

renderer.textureGC.mode = PIXI.GC_MODES.MANUAL;

 

[mozgovipc]

Hi, thanks for the ideas, I'll try to hack into pixi core.