Frameless panel+door+panel, two high knee walls, see how the door is hinged to the glass and the wall?
Frameless 90degree (aka L-shape) See how there is an extra panel next to the door? This is a glass-to-glass hinged door
Frameless 90degree (aka L-shape) See how the door is hinged in the middle? This door is hinged glass-to-glass
Frameless with header. The header makes the unit rock solid since the glass block is not as stable as typical studded walls.