AI & Computation

Diffusion Model

A class of generative AI model that produces images by progressively denoising random noise.

AI & Computation 1 min readaka Latent diffusion · Score-based model
Definition

Diffusion models power most state-of-the-art AI image generators including the engines behind Cadbull's 3D Visualizer. They learn to reverse a noising process, producing photorealistic outputs conditioned on text prompts and reference images.

Why it matters

Diffusion replaced GANs as the dominant image-generation architecture because it is more stable to train and produces higher fidelity at high resolutions — exactly what architectural visualisation needs.

Key points

  • Trained to reverse a step-by-step noising of millions of images.
  • Conditioned by text prompts, depth maps, sketches, or reference photos.
  • Quality scales with steps, model size, and prompt specificity.

Examples

  • Turning a line-art elevation into a photoreal night render.
  • Generating 8 façade material variations from one base render.
In AI Cadbull Studio

Every render in Cadbull's 3D Visualizer is produced by a diffusion model guided by ControlNet so the output preserves your geometry.

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Frequently asked questions

Why does it sometimes hallucinate windows?

A pure text prompt has no geometric guarantee. Use ControlNet, a sketch, or a reference image to lock structure.

Are diffusion outputs copyrightable?

Jurisdiction-dependent. In India and the US, purely AI-generated work has limited protection; human-edited derivatives generally do.

Frequently asked questions

Why does it sometimes hallucinate windows?

A pure text prompt has no geometric guarantee. Use ControlNet, a sketch, or a reference image to lock structure.

Are diffusion outputs copyrightable?

Jurisdiction-dependent. In India and the US, purely AI-generated work has limited protection; human-edited derivatives generally do.

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