Is WebGL 2 supported yet?

I’m using the latest version of PIXI, and want to upgrade an existing frag shader to use WebGL 2. I cannot find any documentation for doing this with PIXI 6, and the issues I found were closed by the bot without a conclusion.

I tried this frag shader (using the default vert shader):

#version 300 es

in vec2 vTextureCoord;
uniform sampler2D uSampler;
out vec4 color;

void main(void) {
    color = texture(uSampler, vTextureCoord);
}

This is the (primary) error:

ERROR: 0:3: 'version' : #version directive must occur before anything else, except for comments and white space

Can I use a WebGL 2 frag shader in a PIXI 6 filter?

[dev7355608]

@frankandrobot You pass undefined , which defaults to the standard version 100 vertex shader regardless of whether PREFER_ENV is WEBGL2: new Filter(undefined, frag, .... You need to pass the version 300 vertex shader posted above. Both the vertex and the fragment shader must be the same version.

[andrewstart]

The renderer can be set to pick WebGL 2 if available with PIXI.settings.PREFER_ENV = PIXI.ENV.WEBGL2 I don’t do filter stuff myself, so couldn’t tell you if Pixi will have any issues with the shaders.