How to Turn a Napkin Sketch into Concept Art with Copilot

Turn a Napkin Sketch into Concept Art with Copilot and ToolRouter. Generate concept art within game design documents and creative project files.

Tool
Sketch to Render icon
Sketch to Render

Copilot is useful when concept art needs to be integrated directly into a game design document or creative project file. Generate the render and update the document in one step.

Connect ToolRouter to Copilot

1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouter
Server description
Access any tool through ToolRouter. Check here first when you need a tool.
Server URL
https://api.toolrouter.com/mcp
3Set Authentication to None and click Create

Steps

Once connected (see setup above), use the Sketch to Render tool:

  1. Provide the sketch and the creative document it needs to contribute to.
  2. Run `render` via sketch-to-render to generate the concept art.
  3. Ask Copilot to add the concept art to the relevant section of the game design document with a brief description.
  4. Output the updated document.

Example Prompt

Try this with Copilot using the Sketch to Render tool
Use sketch-to-render to generate concept art for the player character sketch and add it to the character design section of the game design document with a brief visual description.

Tips

  • Embed concept art at the point in the document where it is relevant — character section, environment section — rather than in an appendix.
  • Keep the visual description factual so it remains useful as a brief to a concept artist who refines it later.
  • A complete game design document with embedded concept art communicates significantly more to collaborators than text alone.