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Index for Section 3G |
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Alphabetical listing for G |
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glIndex(3G)
NAME
glIndex, glIndexd, glIndexf, glIndexi, glIndexs, glIndexub, glIndexdv,
glIndexfv, glIndexiv, glIndexsv, glIndexubv - set the current color index
SYNOPSIS
void glIndexd(
GLdouble c );
void glIndexf(
GLfloat c );
void glIndexi(
GLint c );
void glIndexs(
GLshort c );
void glIndexub(
GLubyte c );
PARAMETERS
c Specifies the new value for the current color index.
SYNOPSIS
void glIndexdv(
const GLdouble *c );
void glIndexfv(
const GLfloat *c );
void glIndexiv(
const GLint *c );
void glIndexsv(
const GLshort *c );
void glIndexubv(
const GLubyte *c );
PARAMETERS
c Specifies a pointer to a one-element array that contains the new value
for the current color index.
DESCRIPTION
glIndex() 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 . 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
glIndexub() and glIndexubv() are available only if the GL version is 1.1 or
greater.
The current index can be updated at any time. In particular, glIndex() can
be called between a call to glBegin() and the corresponding call to
glEnd().
ASSOCIATED GETS
glGet() with argument GL_CURRENT_INDEX
SEE ALSO
glColor(3)(), glIndexPointer(3)
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Index for Section 3G |
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Alphabetical listing for G |
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Top of page |
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