Forbidden Vision 🔧 Rebuilder

Rebuilder is Forbidden Vision's plainest node, and it's meant to be: a basic KSampler with VAE decoding baked in. If you've ever wired up KSampler → VAEDecode → SaveImage a thousand times, this collapses it into one node. No detection models, no auto-downloads, no clever blending - just a sampler that also gives you a picture.

What it does

It takes a latent, a model, and positive/negative conditioning, plus the standard sampling dials: seed, steps (default 10), cfg (default 3), denoise (default 0.28), sampler_name (default euler_ancestral), and scheduler (default sgm_uniform). The pack author's defaults are the ones they use with SDXL-based checkpoints.

Outputs are both LATENT and IMAGE. The catch is that the IMAGE output is only real if you connect the optional vae input - the same arrangement as the Builder. With a VAE wired up, the node samples and decodes in one step; without one, the latent is still valid and the image output is a placeholder.

Why it exists

Honestly? It's the pack's "reduce clutter" node. The README groups Builder and Rebuilder together as "first-pass and second-pass sampling nodes with integrated useful features to reduce clutter." Where the Builder is the first pass (empty latent, resolution presets, CFG scheduling), the Rebuilder is the second - you feed it a latent you've already got and let it refine or rebuild the image with a partial denoise. The default denoise of 0.28 is a sensible "touch up this existing latent" starting point, though it runs 0.01–1.0 if you want a full resample.

The real benefit is workflow economy: one node instead of a three-node chain, and one less wire to route through a VAE decode you're going to do anyway. If you already have a favorite sampler arrangement from core ComfyUI, you're not missing out on capability here - but if you're building a Forbidden Vision workflow and want the whole pack to feel consistent, this slots in as the second pass without any extra thinking. It's a genuine utility, just an unglamorous one.