Module gl_utils::render::params

Some useful drawing parameters.

Constants

BLEND_FUNC_INVERT_COLOR	Writing white source pixels will invert the destination pixel. Color channels in the texture should all be equal to the alpha channel (grayscale) so that 100% opaque regions are white and 100% transparent regions are black.
BLEND_FUNC_NORMAL	The usual blending function to ensure that magnified texels are blended properly with transparency.