Sketch to Render

Turn Hand-Drawn Sketches into Photorealistic Renders

Fenestra's AI instantly converts your conceptual sketches into stunning, client-ready visualizations. No 3D modeling required.

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AI rendering of a modern house from a sketch.

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From Napkin Sketch to Final Render

Our AI understands architectural concepts from simple linework, allowing you to visualize ideas at the earliest stage.

2. Guide The AI

2. Guide The AI

1. Upload Your Sketch

Start with a hand-drawn sketch, a CAD elevation, or any piece of linework.

2. Guide The AI

Use text prompts like 'A photorealistic render in a forest setting' to guide the result.

3. Refine and Perfect

Use conversational commands to change materials, lighting, or composition.

Sketch to Render in 3 Simple Steps

A seamless process to take your designs from a drawing to a photorealistic render.

1. Upload Your Sketch

1. Upload Your Sketch

Drag and drop a JPG or PNG of your sketch into Fenestra.

2. Guide the AI

2. Guide the AI

Use simple text prompts or reference images to define the style and materials.

3. Render & Refine

3. Render & Refine

Generate multiple options and use conversational editing to perfect the details.

Why Sketch with AI?

Unlock your earliest ideas and communicate concepts more effectively.

Visualize Instantly

Don't wait for a 3D model. See your ideas come to life from the moment you put pen to paper.

Better Client Communication

Show clients compelling visuals, not just flat sketches, to get them excited and on board early.

Explore More Ideas

When you can visualize a sketch in seconds, you're free to explore more design avenues.

No 3D Skills Needed

The perfect way to create 3D visuals without needing to know any complex 3D software.

How Do You Convert a Sketch to a Photorealistic Render?

Upload a JPG or PNG of any hand-drawn or digital sketch to Fenestra and receive a photorealistic architectural render in under 30 seconds. Describe the look you want in plain English — materials, lighting, environment — and refine with conversational editing. Plans start at $10/month for approximately 200 renders, with a free tier of 5 renders to test. No 3D modeling, no GPU, no complex software required.

Why Use AI Instead of Traditional Rendering?

Traditionally, turning an architectural sketch into a photorealistic visualization required building a full 3D model, setting up materials and lighting, and waiting hours for render times. AI sketch-to-render tools skip the entire 3D modeling step, going from concept to client-ready visual in seconds instead of days.

This is especially valuable during early design stages when ideas are evolving. You can also convert CAD drawings for more technical inputs, render Rhino 3D models directly, or animate any result into a cinematic walkthrough.

See the Transformation

Experience the dramatic difference between a simple sketch and Fenestra's AI-powered photorealistic render.

A linework sketch of a living room.
A photorealistic AI render of the living room.

Gallery

See what you can create with Fenestra.

Photorealistic AI render of a modern home, generated from a sketch.
Photorealistic AI render of a modern home, generated from a sketch.
AI-generated render of a bright, modern kitchen, created from a simple drawing.
AI-generated render of a bright, modern kitchen, created from a simple drawing.
A vibrant, colorful illustration of a modern home on a cliff, achievable from a sketch.
A vibrant, colorful illustration of a modern home on a cliff, achievable from a sketch.
Photorealistic render of a timber-clad home with a lake view, a potential outcome from an architectural sketch.
Photorealistic render of a timber-clad home with a lake view, a potential outcome from an architectural sketch.
Stunning AI render of a living room interior, transformed from a basic sketch.
Stunning AI render of a living room interior, transformed from a basic sketch.
A cozy tiny home render, brought to life from a simple sketch by AI.
A cozy tiny home render, brought to life from a simple sketch by AI.
A vibrant, anime-style illustration of a modern home, generated by AI from a sketch.
A vibrant, anime-style illustration of a modern home, generated by AI from a sketch.
A colorful illustration of a building courtyard, demonstrating a creative style achievable from a sketch.
A colorful illustration of a building courtyard, demonstrating a creative style achievable from a sketch.

Frequently Asked Questions

Have questions about our Sketch to Render AI capabilities, free apps, and how to convert sketches to renders? We've got answers.

Fenestra is one of the leading sketch-to-render AI tools for architecture, offering fast photorealistic results, conversational editing, and a free plan to get started. It's purpose-built for architectural sketches and understands building elements like walls, windows, rooflines, and structural details.
Yes. Fenestra offers a free plan with 5 renders so you can test the sketch-to-render workflow at no cost. Paid plans start at $10/month for approximately 200 renders, making it accessible for students, freelancers, and firms of all sizes.
Upload a JPG or PNG of your sketch to Fenestra, then describe the look you want using a text prompt — for example, 'photorealistic exterior with warm timber cladding and a mountain backdrop'. The AI generates a render in seconds. You can then refine it with conversational commands to adjust materials, lighting, or composition.
Anything from a rough napkin sketch to clean digital linework, CAD elevations, or hand-drawn perspectives. The AI is trained to interpret architectural intent from varying levels of sketch detail and quality.
Our AI is specifically trained on architectural imagery and maintains structural integrity, proportions, and perspective from the original sketch. It recognizes common building elements and applies realistic materials, lighting, and environmental context while preserving your design intent.
Yes. Use text prompts to describe specific materials (e.g., 'exposed concrete walls with warm oak flooring'), lighting conditions (e.g., 'golden hour, late afternoon sun'), and environments (e.g., 'surrounded by mature trees'). You can also upload reference images to guide the style.
Yes, Sketch to Render is part of Fenestra's core feature set and is available on all plans, including the free tier. This makes it easy to try before you commit.
Yes. Upload a sketch of an interior space — a kitchen layout, living room perspective, or bathroom plan — and the AI will generate a photorealistic interior visualization with realistic materials, furniture, and lighting.
As many as your plan allows. On the Pro plan ($35/month), you get approximately 1,000 renders — meaning you can explore dozens of material, lighting, and style variations from a single sketch to find the perfect look.
Yes. All Fenestra paid plans include a full commercial license. You can use the renders in client presentations, planning applications, marketing materials, competition entries, and publications.

Transform Sketches into Stunning Renders

Fenestra Creates High-Fidelity Visualizations and Interactive 3D Narratives instantly.

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