glBlendColor — set the blend color
void glBlendColor(
|
GLfloat red, |
| GLfloat green, | |
| GLfloat blue, | |
GLfloat alpha); |
red,
green,
blue,
alpha
specify the components of GL_BLEND_COLOR
The GL_BLEND_COLOR may be used to calculate the source and destination
blending factors. If destination framebuffer components use an unsigned normalized
fixed-point representation, the constant color components are clamped to the range
when computing the blend factors. See glBlendFunc for a complete description of the
blending operations.
Initially the GL_BLEND_COLOR is set to (0, 0, 0, 0).
glGet with an argument of GL_BLEND_COLOR
| OpenGL ES API Version | ||||
|---|---|---|---|---|
| Function Name | 2.0 | 3.0 | 3.1 | 3.2 |
| glBlendColor | ✔ | ✔ | ✔ | ✔ |
Copyright © 1991-2006 Silicon Graphics, Inc. Copyright © 2010-2015 Khronos Group. This document is licensed under the SGI Free Software B License. For details, see https://khronos.org/registry/OpenGL-Refpages/LICENSES/LicenseRef-FreeB.txt.