What is a grayscale height map?
A grayscale height map controls relief height: lighter pixels raise the surface and darker pixels keep it lower. It must align with the artwork for the same coin face.
Read the height map guideDesign Custom 3DChallenge Coins Online
Turn front and back artwork plus grayscale height maps into detailed, double-sided 3D relief coin models. Preview materials in real time and export GLB or STL files.
Ideas→3D challenge coins→Physical coins
Design Both Sides of Your Challenge CoinPrepare aligned front and back artwork with precision tools.
Create 3D Relief with Grayscale Height MapsTurn tonal detail into controlled surface height.
Preview Gold, Silver and Enamel MaterialsEvaluate materials on the finished 3D coin in real time.
Export 3D Challenge Coins as GLB and STLMove from an approved design to usable display and print files.
1DesignImport artwork or create with precision tools.
2Coin modelingBuild double-sided relief from aligned artwork and height maps.
3RenderApply materials and check the model before export.
Challenge coin design FAQ
Answers before you start designing
The essentials for turning artwork into a reliable double-sided 3D coin.
How is a height map different from a normal map?
A height map changes the coin geometry and produces real relief. A normal map only changes how light appears on a surface and does not create printable depth.
Learn how to prepare a height mapCan I create a double-sided 3D challenge coin?
Yes. CoinDesign models aligned front and back artwork as one closed coin body, then applies a separate height map to each face.
See the modeling workflowCan I export a challenge coin as a GLB or STL file?
Yes. GLB is useful for sharing and 3D viewing; STL is intended for fabrication and 3D-print workflows. Both are available from the Publish step.
Read about publishing and export