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62 lines
1.7 KiB
Markdown
62 lines
1.7 KiB
Markdown
**_glPointSize:** specify the diameter of rasterized points
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## Syntax
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SUB _glPointSize (BYVAL size AS SINGLE)
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void **_glPointSize**(GLfloat size);
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; size
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> Specifies the diameter of rasterized points. The initial value is 1.
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## Description
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**_glPointSize** specifies the rasterized diameter of points. If point size mode is disabled (see [_glEnable](_glEnable) with parameter [_GL_PROGRAM_POINT_SIZE](_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.
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## Notes
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The point size specified by **_glPointSize** is always returned when [_GL_POINT_SIZE](_GL_POINT_SIZE) is queried. Clamping and rounding for points have no effect on the specified value.
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## Error(s)
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[_GL_INVALID_VALUE](_GL_INVALID_VALUE) is generated if size is less than or equal to 0.
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## Use With
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[_glGet](_glGet) with argument [_GL_POINT_SIZE_RANGE](_GL_POINT_SIZE_RANGE)
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[_glGet](_glGet) with argument [_GL_POINT_SIZE_GRANULARITY](_GL_POINT_SIZE_GRANULARITY)
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[_glGet](_glGet) with argument [_GL_POINT_SIZE](_GL_POINT_SIZE)
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[_glGet](_glGet) with argument [_GL_POINT_SIZE_MIN](_GL_POINT_SIZE_MIN)
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[_glGet](_glGet) with argument [_GL_POINT_SIZE_MAX](_GL_POINT_SIZE_MAX)
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[_glGet](_glGet) with argument [_GL_POINT_FADE_THRESHOLD_SIZE](_GL_POINT_FADE_THRESHOLD_SIZE)
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[_glIsEnabled](_glIsEnabled) with argument [_GL_PROGRAM_POINT_SIZE](_GL_PROGRAM_POINT_SIZE)
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## See Also
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[_GL](_GL)
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[_glEnable](_glEnable), [_glPointParameter](_glPointParameter)
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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/ http://oss.sgi.com/projects/FreeB/].
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