internal/graphicsdriver/opengl/gl/package_notwindows.go
func ClearColor(red float32, green float32, blue float32, alpha float32) {
	C.glowClearColor(gpClearColor, (C.GLfloat)(red), (C.GLfloat)(green), (C.GLfloat)(blue), (C.GLfloat)(alpha))
}
func ClearColor(red float32, green float32, blue float32, alpha float32) {
	C.glowClearColor(gpClearColor, (C.GLfloat)(red), (C.GLfloat)(green), (C.GLfloat)(blue), (C.GLfloat)(alpha))
}
// specify clear values for the color buffers