phaser/v3/src/gameobjects/image/ImageWebGLRenderer.js

var ImageWebGLRenderer = function (renderer, src, interpolationPercentage)
{
    var frame = src.frame;
    var alpha = src.color.worldAlpha * 255 << 24;

    //  Skip rendering?

    if (src.skipRender || !src.visible || alpha === 0 || !frame.cutWidth || !frame.cutHeight)
    {
        return;
    }

    var verts = src.transform.getVertexData(interpolationPercentage, renderer);
    var index = src.frame.source.glTextureIndex;
    var tint = src.color._glTint;
    var bg = src.color._glBg;

    renderer.batch.add(frame.source, src.blendMode, verts, frame.uvs, index, alpha, tint, bg);
};

module.exports = ImageWebGLRenderer;