what is specular highlights?

[JörgenGiftmördaren]

are specular highlights reflections or do they occur at points where the surface of an object is perpendicular to the lighsource direction, like where matte objects would be lit the strongest.. whats the physical explanation of what they are? sorry if im stoopid but i dont understand ;)

[jetpack42]

1. Having the qualities of a speculum, or mirror; having a smooth, reflecting surface; as, a specular metal; a specular surface.

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[egerie]

Just a few posts up there's this one. (http://www.conceptart.org/forums/showthread.php?t=15745) Check it out you might find it interesting !