Method bind

scripts/utils/framebuffer.js:385–475

* Bind. * @param {PIXI.renderer} renderer - The renderer. * @param {number[]} [attachments] - The subset of attachments to render to.

(renderer, attachments)

     * @param {number[]} [attachments] - The subset of attachments to render to.
     */
    bind(renderer, attachments) {
        if (attachments?.length === 0) {
            return;
        }

        renderer.batch.flush();

        const gl = renderer.gl;
        let framebuffer;

        const key = attachments?.join(",") ?? this.#defaultFramebufferKey;

        if (!this.framebuffers.hasOwnProperty(key)) {
            const { realWidth, realHeight } = this.textures[0].baseTexture;

            framebuffer = new PIXI.Framebuffer(realWidth, realHeight);
            framebuffer.multisample = this.framebufferOptions.multisample;
            framebuffer.depth = !!this.framebufferOptions.depth;
            framebuffer.stencil = !!this.framebufferOptions.stencil;
            framebuffer.clearDepth = this.framebufferOptions.clearDepth ?? undefined;
            framebuffer.clearStencil = this.framebufferOptions.clearStencil ?? undefined;
            framebuffer.cleared = false;

            for (let i = 0; i < (attachments?.length ?? this.textures.length); i++) {
                framebuffer.addColorTexture(i, this.textures[attachments?.[i] ?? i].baseTexture);
            }

            framebuffer.renderTexture = new PIXI.RenderTexture(new Proxy(this.textures[attachments?.[0] ?? 0].baseTexture, {
                get(target, prop) {
                    return prop === "framebuffer" ? framebuffer : Reflect.get(...arguments);
                },
                set(target, prop, value) {
                    if (prop === "framebuffer") {
                        framebuffer = value;
                    } else {
                        return Reflect.set(...arguments);
                    }
                }
            }));

            this.framebuffers[key] = framebuffer;
        } else {
            framebuffer = this.framebuffers[key];
        }

        if (Object.values(this.framebuffers).indexOf(renderer.framebuffer.current) >= 0) {
            for (const baseTexture of renderer.framebuffer.current.colorTextures) {
                if (framebuffer.colorTextures.indexOf(baseTexture) < 0) {
                    baseTexture.update();
                }
            }
        }

        renderer.renderTexture.bind(framebuffer.renderTexture);

        const drawBuffers = [];

        for (let i = 0, n = framebuffer.colorTextures.length; i < n; i++) {