GLAPI/glBlendColor: Difference between revisions
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== Function Definition == | == Function Definition == | ||
void '''glBlendColor'''( | void '''glBlendColor'''(GLfloat {{param|red}}, GLfloat {{param|green}}, GLfloat {{param|blue}}, GLfloat {{param|alpha}}); | ||
; red, green, blue, alpha | ; red, green, blue, alpha | ||
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The {{enum|GL_BLEND_COLOR}} may be used to calculate the source and destination blending factors. The color components are clamped to the range [0, 1] before being stored. See {{apifunc|glBlendFunc}} for a complete description of the blending operations. Initially the {{enum|GL_BLEND_COLOR}} is set to (0, 0, 0, 0). | The {{enum|GL_BLEND_COLOR}} may be used to calculate the source and destination blending factors. The color components are clamped to the range [0, 1] before being stored. See {{apifunc|glBlendFunc}} for a complete description of the blending operations. Initially the {{enum|GL_BLEND_COLOR}} is set to (0, 0, 0, 0). | ||
== Notes == | |||
The type of the {{param|red}}, {{param|green}}, {{param|blue}}, and {{param|alpha}} parameters was changed from GLclampf to GLfloat. This change is transparent to user code and is described in detail on the {{apifunc|removedTypes}} page. | |||
== Associated Gets == | == Associated Gets == | ||
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== See Also == | == See Also == | ||
{{apifunc|glBlendEquation}}, {{apifunc|glBlendFunc}}, {{apifunc|glGetString}} | {{apifunc|glBlendEquation}}, {{apifunc|glBlendFunc}}, {{apifunc|glGetString}}, {{apifunc|removedTypes}} | ||
== Copyright == | == Copyright == | ||
Revision as of 08:19, 13 August 2012
| Core in version | 4.6 | |
|---|---|---|
| Core since version | 1.0 | |
glBlendColor: set the blend color
Function Definition
void glBlendColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
- red, green, blue, alpha
- specify the components of GL_BLEND_COLOR
Description
The GL_BLEND_COLOR may be used to calculate the source and destination blending factors. The color components are clamped to the range [0, 1] before being stored. See glBlendFunc for a complete description of the blending operations. Initially the GL_BLEND_COLOR is set to (0, 0, 0, 0).
Notes
The type of the red, green, blue, and alpha parameters was changed from GLclampf to GLfloat. This change is transparent to user code and is described in detail on the removedTypes page.
Associated Gets
glGet with an argument of GL_BLEND_COLOR
See Also
glBlendEquation, glBlendFunc, glGetString, removedTypes
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/.