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| REFLECT(3G) | [FIXME: manual] | REFLECT(3G) |
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 Name | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 | 4.50 |
| 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
| 05/21/2015 | [FIXME: source] |