I am experiencing a strange issue with regards to the transparency of PNGs used on a 2d Plane. Each of the planes are imported using the Import Images As Planes plugin (Shadeless, Use Alpha, Alpha Mode: Premultiplied, Z-Transparency, Dots/BU @ Definition=300, everything else off).
Looking at the image below, the 3d viewport background color/grid shows around each planes.
But, after selecting the 2d planes or switching from solid/textured to rendered, it goes away.
I’ve tried changing “Clip Alpha” slider in the System User Preferences, premultiplied/straight, switching Blender Game render engine and changing Alpha Blend to Alpha Clip under Game Settings.
I created each of the PNGs from photoshop. Anyone have an idea of why the 3d viewport background/grid is showing through the overlapped image planes below?