| 60° |
60° Gloss; overall specular reflectance level of the effect coating. |
| Waviness |
Waviness of the effect finish, describing large‑scale distortion of reflections. |
| Graininess |
Perceived coarseness or fineness of the metallic/effect flake structure in the coating. |
| Density (10°) |
Number of visible sparkle points per 100 mm² area near 10°, indicating how densely flakes sparkle head‑on. |
| Area (10°) |
Average sparkle size near 10°, describing the typical area of individual sparkle elements. |
| Brightness (10°) |
Average luminance of sparkle points near 10°, describing how bright the sparkles appear head‑on. |
| Visibility (10°) |
Average perceived brightness of sparkle elements near 10°, considering their visibility and the background colour of the material. |
| Density (45°) |
Number of visible sparkle points per 100 mm² area at 45°, indicating flake activity at the side view. |
| Area (45°) |
Average sparkle size at 45°, describing the typical area of individual sparkle elements off‑specular. |
| Brightness (45°) |
Average luminance of sparkle points at 45°, describing perceived sparkle brightness from the side. |
| Visibility (45°) |
Average perceived brightness of sparkle elements at 45°, considering their visibility and the background colour of the material. |
| SpR (10°) |
Red‑channel sparkle intensity measured close to the viewing direction at 10°. |
| SpG (10°) |
Green‑channel sparkle intensity measured close to the viewing direction at 10°. |
| SpB (10°) |
Blue‑channel sparkle intensity measured close to the viewing direction at 10°. |
| SpR (45°) |
Red‑channel sparkle intensity measured at the off‑specular 45° viewing direction. |
| SpG (45°) |
Green‑channel sparkle intensity measured at the off‑specular 45° viewing direction. |
| SpB (45°) |
Blue‑channel sparkle intensity measured at the off‑specular 45° viewing direction. |
| R |
Average red‑channel surface colour of the effect finish (RGB). |
| G |
Average green‑channel surface colour of the effect finish (RGB). |
| B |
Average blue‑channel surface colour of the effect finish (RGB). |
