Bump Mapping
A shading trick that makes a smooth surface look rough or embossed. James Blinn introduced it in 1978, using a grayscale map to fake fine relief without extra geometry.
Spot it
- 01Fine embossed surface relief
- 02Pitted orange-peel texture
- 03Smooth silhouette edges
Why it happens
A height map perturbs the surface normal during shading, so light reacts as if bumps existed even though the model remains flat and the outline stays smooth.
Recreate it in Pixio
Image edit prompt“Render this image with 1970s-style bump mapping: smooth glossy surfaces gain a fine embossed pebbled relief, highlights and shadows react to tiny bumps under a single directional light, the silhouette stays perfectly smooth, with a clean computer-graphics gradient background. Keep the original subject and composition.”
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