GLAPI/glPointSize: Difference between revisions
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== Description == | == Description == | ||
'''glPointSize''' specifies the rasterized diameter of points. If point size mode is disabled (see {{apifunc|glEnable}} with parameter {{ | '''glPointSize''' specifies the rasterized diameter of points. If point size mode is disabled (see {{apifunc|glEnable}} with parameter {{enum|GL_PROGRAM_POINT_SIZE}}), this value will be used to rasterize points. Otherwise, the value written to the shading language built-in variable {{code|gl_PointSize}} will be used. | ||
== Notes == | == Notes == | ||
The point size specified by '''glPointSize''' is always returned when {{ | The point size specified by '''glPointSize''' is always returned when {{enum|GL_POINT_SIZE}} is queried. Clamping and rounding for points have no effect on the specified value. | ||
== Errors == | == Errors == | ||
{{ | {{enum|GL_INVALID_VALUE}} is generated if {{param|size}} is less than or equal to 0. | ||
== Associated Gets == | == Associated Gets == | ||
{{apifunc|glGet}} with argument {{ | {{apifunc|glGet}} with argument {{enum|GL_POINT_SIZE_RANGE}} | ||
{{apifunc|glGet}} with argument {{ | {{apifunc|glGet}} with argument {{enum|GL_POINT_SIZE_GRANULARITY}} | ||
{{apifunc|glGet}} with argument {{ | {{apifunc|glGet}} with argument {{enum|GL_POINT_SIZE}} | ||
{{apifunc|glGet}} with argument {{ | {{apifunc|glGet}} with argument {{enum|GL_POINT_SIZE_MIN}} | ||
{{apifunc|glGet}} with argument {{ | {{apifunc|glGet}} with argument {{enum|GL_POINT_SIZE_MAX}} | ||
{{apifunc|glGet}} with argument {{ | {{apifunc|glGet}} with argument {{enum|GL_POINT_FADE_THRESHOLD_SIZE}} | ||
{{apifunc|glIsEnabled}} with argument {{ | {{apifunc|glIsEnabled}} with argument {{enum|GL_PROGRAM_POINT_SIZE}} | ||
== See Also == | == See Also == | ||
Revision as of 17:27, 29 April 2012
| Core in version | 4.6 | |
|---|---|---|
| Core since version | 1.0 | |
glPointSize: specify the diameter of rasterized points
Function Definition
void glPointSize(GLfloat size);
- size
- Specifies the diameter of rasterized points. The initial value is 1.
Description
glPointSize specifies the rasterized diameter of points. If point size mode is disabled (see glEnable with parameter GL_PROGRAM_POINT_SIZE), this value will be used to rasterize points. Otherwise, the value written to the shading language built-in variable gl_PointSize will be used.
Notes
The point size specified by glPointSize is always returned when GL_POINT_SIZE is queried. Clamping and rounding for points have no effect on the specified value.
Errors
GL_INVALID_VALUE is generated if size is less than or equal to 0.
Associated Gets
glGet with argument GL_POINT_SIZE_RANGE
glGet with argument GL_POINT_SIZE_GRANULARITY
glGet with argument GL_POINT_SIZE
glGet with argument GL_POINT_SIZE_MIN
glGet with argument GL_POINT_SIZE_MAX
glGet with argument GL_POINT_FADE_THRESHOLD_SIZE
glIsEnabled with argument GL_PROGRAM_POINT_SIZE
See Also
Copyright
Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.