RNDRSNapkin sketch to finished photograph
The sketch is where the idea lives — RNDRS keeps it alive. Photograph or scan any hand drawing, upload it, describe the materials and light, and watch the loose lines become a photorealistic image that still feels like your design.
Drag to compare — one upload, one wire, eleven seconds
How it works
Photograph or scan the sketch — pencil, ink or marker all work
Drop it onto the RNDRS canvas
"Board-formed concrete, desert garden, dusk glow"
Photoreal in ~11 seconds, design intent preserved
The lines stay yours
Our render engine reads perspective, massing and openings from your drawing and respects them — it's trained on architecture, not everything. The output is recognizably the building you drew, dressed in real materials and real light.
Sell the idea at idea-speed
Sketch in the client meeting, render before the meeting ends. Nothing matches the persuasive power of showing the photograph of a thing you drew ten minutes ago.
From loose to lush, gradually
Chain render nodes to refine in stages: first pass for massing and mood, second for materials, third for the 4K board image. Each stage stays editable.
Frequently asked questions
How rough can the sketch be?
Surprisingly rough. As long as the perspective and main masses read, the AI will resolve a coherent building. Cleaner linework gives you more control over the exact outcome.
Can I render pencil, ink and marker sketches?
Yes — any medium. Photograph it in even light or scan it. Dark lines on light paper produce the most faithful interpretation.
Will it work for interiors and landscapes too?
Yes. Interior perspective sketches, garden plans and section sketches all render — describe the space and atmosphere in the prompt.
What if I want to change materials after rendering?
Edit the prompt and re-render, or wire the same sketch to several render nodes to test multiple palettes side by side. Each render takes about eleven seconds.
Is sketch-to-render free to try?
Yes — signup includes 3 free renders, no credit card required.
Keep exploring
Try it on a real project
Upload something you're working on right now. Three renders free — you'll know in two minutes.
Create your studio