Sketch → Render in Minutes

Transform your sketches into detailed, photo-realistic architectural visuals with Fenestra’s Sketch → Render workflow

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Shaun McCallum

August 11, 2025

Got a sketch you want to turn into a polished architectural or interior visualisation—fast? You’re in the right place.

In past guides, we’ve covered more complex workflows like:

• Creating multiple images from a single source
• Material edits with Conversational Edit
• Redesigning spaces for AI video

This time, we’re keeping it focused.

If you’ve got a sketch, scribble, or a 3D model screenshot, and you’re still exploring design ideas (no fixed materials yet), Sketch to Render is where Fenestra really shines.

• Go to Render Settings → Workflows
• Choose Sketch to Render

• One of our preset style images
• An image from a past project
• A photo that inspires you
• Pretty much anything you’d like for your outcome image to be inspired by

The AI uses this image to capture lighting, materials, form, and overall mood—more than you’d get from text prompts alone.

Notice the image has:

• Details filled in
• Structure preserved
• No random buildings or form loss

In the Advanced tab you can:

• Set time of day
• Choose type of visual
• Pick an environment

Adjust Reference Image Strength:

• 0 → Almost no influence
• 1 → Maximum influence, strong match to your reference
• Pro tip: 0.5–0.7 often gives the best balance
  
  

Add prompt details for:

• Specific materials (light timber, brick, concrete)
• Location (Norway, Spain, Scotland) to influence landscape and light

Once you’ve got your base render:

• Edit specific materials
• Try different times of day
• Test seasonal changes (snow, autumn, summer)

We’ll cover editing and re-styling your render in the next guide.

Try Sketch to Render now → Launch Fenestra