Reality Shaping — ruling 1

First, you may put a permanent card onto the battlefield, then each other player in turn order may do the same. Cards such as Sakashima's Student that can enter as a copy of another creature could copy a creature put onto the battlefield earlier in the resolution of the ability.

Reality Shaping — ruling 2

Each player will know what permanent cards were put onto the battlefield earlier in the ability's resolution.

Reality Shaping — ruling 3

This process is not repeated. Go around the table only once.

Reality Shaping — ruling 4

After all permanents are put onto the battlefield and you planeswalk away from Reality Shaping, any abilities that triggered from those permanents entering will be put onto the stack. You'll put all of your triggered abilities on the stack in any order, then each other player in turn order will do the same. (The last ability put on the stack will be the first one that resolves.)

Reality Shaping : règles, fonctionnement et interactions (MTG)

Reality Shaping is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

When you encounter Reality Shaping, starting with you, each player may put a permanent card from their hand onto the battlefield. (Then planeswalk away from this phenomenon.)

How it works : Reality Shaping

Original English text — Wizards of the Coast / Scryfall

#1June 1, 2012· Wizards of the Coast
First, you may put a permanent card onto the battlefield, then each other player in turn order may do the same. Cards such as Sakashima's Student that can enter as a copy of another creature could copy a creature put onto the battlefield earlier in the resolution of the ability.
No other card is named in this ruling.
#2June 1, 2012· Wizards of the Coast
Each player will know what permanent cards were put onto the battlefield earlier in the ability's resolution.
No other card is named in this ruling.
#3June 1, 2012· Wizards of the Coast
This process is not repeated. Go around the table only once.
No other card is named in this ruling.
#4June 1, 2012· Wizards of the Coast
After all permanents are put onto the battlefield and you planeswalk away from Reality Shaping, any abilities that triggered from those permanents entering will be put onto the stack. You'll put all of your triggered abilities on the stack in any order, then each other player in turn order will do the same. (The last ability put on the stack will be the first one that resolves.)
No other card is named in this ruling.