Turn an architecture sketch into a render

A clean sketch gives a predictable result. A loose sketch gives a looser one. The recipe treats your outlines as the building, so the more the lines commit, the less the model has to invent.

Loose sketches still work. Where a line wobbles or stops short, ArchFor resolves it with the simplest believable construction detail. Expect more variation between the four options when the drawing is rough.

• Clear perspective: one or two vanishing points you can find with a ruler.
• Closed outlines around walls, roofs and openings.
• A visible horizon or ground line, so the camera height is readable.
• Little hatching. Heavy shading can read as dark material or deep shadow.
• Photographed flat, from straight above, in even light with no hard shadow across the page.

Anything you did not draw is guessed. That includes materials, glazing color, ground surface, planting, sky and the far side of the building. A blank wall becomes a plausible blank wall; it will not grow windows you did not mark.

You steer the guesses with presets, not prompts. Pick a Style such as Warm timber or Concrete & glass, a Time of day, and add a one-line materials note of up to 200 characters, for example "white brick base, dark metal roof". The note is for finishes only, not form.

Small marks are less stable. Thin mullions, railings and signage can shift between options, and lettering in the image is unreliable. Results are AI images for design review, not construction documents.

A phone photo is enough if the page is flat and evenly lit. Scanning helps only when the sketch is faint.

1. Lay the sheet on a flat table near a window, out of direct sun.
2. Hold the phone parallel to the paper so the page edges stay square.
3. Crop to the drawing and the horizon. Leave out the desk and your hand.
4. Raise contrast slightly if the pencil is light. Do not sharpen hard.
5. Upload, choose Hand sketch, then set Space to Exterior or Interior.

Pick the closest option and refine it. More like this makes four new variations; Brighter and Moodier shift the light; Night turns it to evening. Change facade material swaps cladding to options such as red clay brick or pale limestone panels. Each step is checked against your original sketch, so the drawn form stays put.

A round of four costs 4 credits at 1K, 8 at 2K or 12 at 4K. The $9.99 Starter pack holds 80 credits, enough for 10 rounds at 2K.

ArchFor is a web app that turns 3D model screenshots, sketches and existing renders into photorealistic architectural images. Credit packs from $9.99; no plugin and no subscription required.