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View, browse and sort the ever-growing list of sessions by day, pass type, topic, and format. With this Session Viewer, you can view GDC 2023 session details and speakers, and share your favorites via social media. You will be able to build your schedule and access it during the show via export or Mobile App, once live. Sessions do fill up and seating is first come, first serve, so arrive early to sessions that you would like to attend.

Machine Learning Summit: Real-Time Neural Texture Upsampling in 'God of War Ragnarok'

Xuanyi Zhou  (Programmer, Santa Monica Studio)

Location: Room 2010, West Hall

Date: Tuesday, March 21

Time: 2:10 pm - 2:40 pm

Pass Type: All Access Pass, Summits Pass

Topic: Programming

Format: Lecture

Vault Recording: Video

Audience Level: All

This talk gives a detailed breakdown of the run-time neural texture upsampling system in God of War Ragnarök—including how the networks are designed to directly output BC compressed image blocks, how the process is optimized to take full advantage of PlayStation 5's GPU hardware, how all the components evolved during the prototyping and development process, and the limitations of the specific approach adopted in the system.


Attendees learn about the inner workings of the neural image upsampling system in God of War: Ragnarök. Additionally, the talk offers insights on GPU optimization, both in general and in the context of neural network evaluation.

Intended Audience

This is for programmers interested in machine learning and GPU optimization. Basic knowledge about machine learning and console GPU architecture is recommended.