Use the evolution control bar that directly sets the evolution speed of the model.

Touch the bar within the positive half (∞) in order to evolve the model seeking for characteristics you like. If you don't like a change then simply touch the bar within the negative half (○) so the application involves the model undoing the evolution history. The next time you evolve the model, the tool will generate a different evolutionary path. Sometimes you have to pass through configurations you don't like to reach the one you like.
Playing this game of evolution-involution teaches the internal AI engine of the application how to better generate new evolutionary paths for accelerating the beauty optimization process.

Press the button  to access the application menu:

• Evolve geometry: Disable this option to preserve geometry while evolving other features.
• Evolve colors: Disable this option to preserve colors while evolving other features.
• Save file: Saves the current configuration to the local drive as a TXT file. Neither the evolution history nor the training of the internal AI engine will be saved.
  
• Open and merge: Loads a configuration from the local drive previously saved as a TXT file. Once the file is chosen the application displays a dialog offering import options (if both correspond to the same algorithm). This possibility is very useful for combining characteristics from different model configurations. When a configuration is loaded into the tool it becomes the starting point for the next evolution process and any previous evolution history is lost.
• Save snapshot: Saves to the local drive a PNG image of the model with transparent background.
  
• Generate link: Stores provisionally the current configuration on our server and shows the URL for sharing it.
• Purchase as NFT: Starts the purchase process of the current configuration as a 3D model NFT. You will need a customization key for the algorithm you are configuring. Know more at Details about customization keys.
  

Some functions and behaviors can be controlled from the URL query when the evolutionary configurator is loaded in the browser. These are the admitted parameters:

• frp: Load configuration file from relative path. Its usage is reserved by the REIVGEN website to load configurations from the gallery. Example:
  https://reivgen.com/configurator.html?frp=reivgen_res/gallery/REEF/prod_4.txt
  
• fid: Load configuration file from the REIVGEN server. Its usage is reserved by the REIVGEN website to load configurations previously stored through the function "Generate link". Example:
  https://reivgen.com/configurator.html?fid=u1aacrpy
  
• fur: Load configuration file from absolute URL. It is intended to allow the loading of files stored in remote servers by the user. The URL must resolve to a plain text file that contains the configuration. This configuration is obtained by using the function "Save file". Example:
  https://reivgen.com/configurator.html?fur=https://pastebin.com/raw/Vu9MzCgw
• uim: Set user interface mode. Allows to establish the display/hide status of the main UI controls such as the evolution control bar or the top-left buttons. These are the admitted values:
  
  0. The controls are normally hidden until a user interaction. Once displayed, the controls are hidden again after some seconds without user interactions.
  1. The controls are always displayed. This is the default UI mode.
     
  Example:
  https://reivgen.com/configurator.html?uim=0&frp=reivgen_res/gallery/REEF/prod_4.txt