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seen Jan 17 at 10:15
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May
16
comment How much time has passed between the events in Portal 1 and 2?
@Arda Xi: I'm really not sure where you're going with this, and I'm pretty sure that as far as Portal 2 went, storytelling was their overriding concern.
May
16
revised What is a “pixel shader”?
Improvements and clarifications
May
16
awarded  Teacher
May
16
revised What is a “pixel shader”?
added 744 characters in body
May
16
awarded  Editor
May
16
revised What is a “pixel shader”?
Added Wikipedia list reference
May
16
answered What is a “pixel shader”?
May
16
comment Is it possible to invalidate a dispenser after it has been used once?
@Radek Redstone circuitry is quirky in that some circuits can behave slightly differently depending on how they're oriented (e.g. in the case of the north/south quirk. Maybe that's the case here. fredley's screenshot is taken facing northwards (i.e. the pillar he is standing on is south of the circuit), so try building it in that orientation. (You can tell the orientation by the "clump" found on the northwest corner of the grass tile)
May
16
awarded  Supporter
Oct
20
awarded  Autobiographer