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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 Nreflect 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
       ┌───────────┬───────────────────────────────────────────────────────────────────────────────────┐
       │           │        OpenGL Shading Language Version                                            │
       ├───────────┼──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┤
       │Function   │ 1.10 │ 1.20 │ 1.30 │ 1.40 │ 1.50 │ 3.30 │ 4.00 │ 4.10 │ 4.20 │ 4.30 │ 4.40 │ 4.50 │
       │Name       │      │      │      │      │      │      │      │      │      │      │      │      │
       ├───────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │reflect    │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
       │(genType)  │      │      │      │      │      │      │      │      │      │      │      │      │
       ├───────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │reflect    │  -   │  -   │  -   │  -   │  -   │  -   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
       │(genDType) │      │      │      │      │      │      │      │      │      │      │      │      │
       └───────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┘


SEE ALSO
       dot(), refract()


COPYRIGHT
       Copyright © 2011-2014 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/.


COPYRIGHT
       Copyright © 2011-2014 Khronos Group

[FIXME: source]                             07/22/2015                                REFLECT(3G)