Gl.Indexf (gb.opengl)
Static Sub Indexf ( Index As Float )
Set the current color index.
Parameters
- c
-
Specifies the new value for the current color index.
Parameters
- c
-
Specifies a pointer to a one-element array that contains
the new value for the current color index.
Description
Gl.Index updates the current (single-valued) color index.
It takes one argument, the new value for the current color index.
The current index is stored as a floating-point value.
Integer values are converted directly to floating-point values,
with no special mapping.
The initial value is 1.
Index values outside the representable range of the color index buffer
are not clamped.
However,
before an index is dithered (if enabled) and written to the frame buffer,
it is converted to fixed-point format.
Any bits in the integer portion of the resulting fixed-point value
that do not correspond to bits in the frame buffer are masked out.
Notes
Gl.Indexub and
Gl.Indexubv are available only if the GL version is
1.1 or greater.
The current index can be updated at any time.
In particular,
Gl.Index can be called between a call to Gl.Begin and the corresponding
call to Gl.End.
Associated Gets
Gl.Get with argument
Gl.CURRENT_INDEX
See also
See original documentation on OpenGL website