Surface normals from a height/detail map — RGB encodes XYZ direction.

Classic 3×3 gradient operator — good balance of noise and detail.

Higher values exaggerate surface detail.

Smooth input before computing normals to reduce noise.

Flip normal direction per axis. Use to match your engine's coordinate system (OpenGL vs DirectX).

Wraps edges so the normal map tiles seamlessly.

Tone-maps source luminance into the target range.

High-pass boost to emphasize fine surface roughness variation.

Flip light/dark. Bright areas often mean smooth (low roughness) — invert to taste.

Multiplies the grayscale specular by a color (metals often use a tinted specular).

Pixels brighter than the cutoff emit. Softness feathers the edge of the glow.

Keeps the source color of glowing areas, or outputs a white-on-black mask.

Hover over the result to inspect individual normal values below.

• Use height maps for best results
• Increase strength for low-contrast inputs
• Pre-blur to smooth noisy photos
• Toggle Invert G for DirectX convention
• Enable Tiling for repeating textures