reflect — calculate the reflection direction for an incident vector
genType reflect(
|
genType I, |
genType N); |
I
Specifies the incident vector.
N
Specifies the normal vector.
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.
| OpenGL ES Shading Language Version | ||||
|---|---|---|---|---|
| Function Name | 1.00 | 3.00 | 3.10 | 3.20 |
| reflect (genType) | ✔ | ✔ | ✔ | ✔ |
Copyright © 2011-2015 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. https://opencontent.org/openpub/.