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.

This guide walks through the workflow step by step. If you want the shorter version — what it does, what it costs and how it fits a practice — see sketch to render AI software.

Step 2 – Pick the ‘Sketch to Render’ Preset

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

Step 3 – Add a Reference Image

Choose a reference image to guide the AI. This can be:

• 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.

Step 4 – Hit Render

Notice the image has:

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

Step 5 – Refine with Advanced Settings

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

Take It Further

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, or read more about Fenestra’s sketch to render software.

Try Sketch to Render now

Get Started!