How to save as a texture that applied shader?

[wonlab]

I just want to calculate shader once and use texture that applied shader.

is there any way to solve it?

[ivan.popelyshev]

https://pixijs.io/examples/#/basics/render-texture.js 

https://pixijs.io/examples/#/filters/filter-mouse.js

This question is asked too often and people dont like to search it, so my comment is very small : renderTexture+filters. There's no complete guide on it, you have to experiment with this thing and stumble across bugs

There's big article on how to avoid problems with filters: https://github.com/pixijs/pixi.js/wiki/v4-Creating-Filters

Yes, its not a newbie material, prepare to suffer.

[wonlab]

 I am worrying about that when render method call, the texture will calculate on shader every time.

I just want to make static texture that calculated texture.

should I use canvas api?

thanks.

[ivan.popelyshev]

you should call render with your supposed container with filter as first parameter and renderTexture as second. Call it one time when you construct the texture.

Yeah, if you know how to do something in canvas 2d context, you can do that and use "Texture.fromCanvas()". If you need webgl api, its betetr to use pixi filters, or you'll have problems with wrong states of renderers.