Name

reflect — calculate the reflection direction for an incident vector

Declaration

genType reflect(genType I, genType N);

genDType reflect(genDType I, genDType N);

Parameters

I

Specifies the incident vector.

N

Specifies the normal vector.

Description

For a given incident vector I and surface normal N reflect returns the reflection direction calculated as I - 2.0 * dot(N, I) * N.

N should be normalized in order to achieve the desired result.

Version Support

FunctionVersion 1.10Version 1.20Version 1.30Version 1.40Version 1.50Version 3.30Version 4.00Version 4.10Version 4.20Version 4.30
reflect (genType)YYYYYYYYYY
reflect (genDType)------YYYY

See Also

dot, refract

Copyright

Copyright © 2011 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.