Corrected enum value used to read current color-mask.
Current glow uses GL_BLEND_COLOR in the constructor of glow::scoped::colorMask to read the old state. For the desired result, however, GL_COLOR_WRITEMASK should be used.
Current glow uses GL_BLEND_COLOR in the constructor of glow::scoped::colorMask to read the old state. For the desired result, however, GL_COLOR_WRITEMASK should be used.