You've been logged out of GDC Vault since the maximum users allowed for this account has been reached. To access Members Only content on GDC Vault, please log out of GDC Vault from the computer which last accessed this account.

Click here to find out about GDC Vault Membership options for more users.

close

Session Name:

Solving Visibility and Streaming in the The Witcher 3: Wild Hunt with Umbra 3 (Presented by Umbra Software)

Overview:

This talk will detail how the Umbra 3 Visibility System is being used and accomodated in the REDengine 3 that powers The Witcher 3: Wild Hunt. Umbra's automated occlusion culling system makes sure only the objects seen by the camera are rendered. Middleware has been an important design consideration in building the state of the art REDengine 3. Engineers from Umbra Software and CD Projekt RED offer views from both sides as to how an engine and middleware should work together and their experiences in developing systems in collaboration. We will discuss and show the REDengine's various visibility-related features. Umbra's visibility system automatically generates occluders and removes the need for manual markup. The size of the world in The Witcher 3 makes using manually placed occluders impossible. Umbra was required to develop new streaming and an LOD system for its visibility software to meet the game's needs which we will discuss in our talk. The talk will contain information and examples of how Umbra was integrated into the engine's world editor and runtime, how it fits into the workflow and the performance budget, the challenges presented in creating a huge streaming open world game and an honest look in what went right and could be done better in the future.

Did you know free users get access to 30% of content from the last 2 years?


Get your team full access to the most up to date GDC content

  • GDC 2014
  • Jasin Bushnaief
  • Umbra Software
  • Przemyslaw Czatrowski
  • CD Projekt RED
  • free content
  • Programming
  • Programming