glDepthRangef — specify mapping of depth values from normalized device coordinates to window coordinates
void glDepthRangef(
|
GLfloat n, |
GLfloat f); |
n
Specifies the mapping of the near clipping plane to window coordinates. The initial value is 0.
f
Specifies the mapping of the far clipping plane to window coordinates. The initial value is 1.
After clipping and division by w,
depth coordinates range from
-1
to 1,
corresponding to the near and far clipping planes.
glDepthRangef specifies a linear mapping of the normalized depth coordinates
in this range to window depth coordinates.
If a fixed-point depth representation is used, the parameters
n and f are
clamped to the range [0, 1] when specified.
The setting of (0,1) maps the near plane to 0 and the far plane to 1. With this mapping, the depth buffer range is fully utilized.
It is not necessary that n be less than f.
Reverse mappings such as
n=1,
and
f=0
are acceptable.
glGet with argument GL_DEPTH_RANGE
| OpenGL ES API Version | ||||
|---|---|---|---|---|
| Function Name | 2.0 | 3.0 | 3.1 | 3.2 |
| glDepthRangef | ✔ | ✔ | ✔ | ✔ |
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