Coffee, Code & Shaders: Real-Time Rendering Conversations

Grab your favorite mug, pull up a chair, and join us in this cozy corner for a nice conversation on everything graphics programming — with freshly brewed coffee for all game developers passionate about pixels and algorithms.

Coffee, Code & Shaders: Real-Time Rendering Conversations is a technology podcast hosted by Jacobo Ríos, with 79 episodes on record and a Required Pod Score of 80. PitchCentric scores this show on Booking Probability, Listen Score, and live audience signals refreshed every 24 hours.

Jacobo Ríos hosts Coffee, Code & Shaders: Real-Time Rendering Conversations, a technology show with 79 episodes published.

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  Coffee, Code & Shaders: Real-Time Rendering Conversations

  Variable Rate Ray Tracing in Call of Duty MW4

  Aug 27, 202640 min

  This time, we are going to talk about the presentation given by Michal Olejnik , Lead Ray-Tracing Engineer at Infinity Ward , during SIGGRAPH 2026 . In it, he discusses the concept of Variable Rate Ray Tracing (VRRT) implemented within Call of Duty: Modern Warfare 4 , where they manage to optimize performance and visual fidelity through the intelligent reallocation of rays toward areas of the image where they are needed most. Read full presentation: https://advances.realtimerendering.com/s2026/content/SIGGRAPH2026%20-%20Micha%C5%82%20Olejnik%20-%20Variable%20Rate%20Ray%20Tracing%20in%20COD%20MW4.pdf Original Copyright Free Music written, performed, and produced by TrackTribe https://www.youtube.com/watch?v=HK9z2cR8nlM&list=PLFEJ2E5exsjrjRzhJdOYOmTlcYfK3Hz7_

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  Coffee, Code & Shaders: Real-Time Rendering Conversations

  Scaling User-Generated 3D Worlds in ROBLOX

  Aug 20, 202647 min

  This time, we will talk about the presentation given by Sergey Makeev , Senior Technical Director at ROBLOX , during SIGGRAPH 2026 . In it, he details the development of a rendering architecture called SLIM, designed to optimize the diversity of user-generated 3D worlds to run on devices ranging from VR headsets to smart TVs, without a fixed memory budget or a uniform art direction. Full presentation: https://advances.realtimerendering.com/s2026/content/SMAK_SIG26_SLIM-Scaling_User-Generated_3D_Worlds_on_Roblox_8_Aug_2026.pdf Original Copyright Free Music written, performed, and produced by TrackTribe https://www.youtube.com/watch?v=HK9z2cR8nlM&list=PLFEJ2E5exsjrjRzhJdOYOmTlcYfK3Hz7_

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  Coffee, Code & Shaders: Real-Time Rendering Conversations

  Real-Time Path-Tracing of Massive Dynamic Foliage

  Aug 12, 202627 min

  Today, we will discuss this paper by Dirk Gerrit van Antwerpen et al., in which they propose a path-tracing system that overcomes the memory limitations of traditional ray-tracing by using opacity micromaps (OMMs) to represent fine details like leaves. This drastically reduces processing overhead, enabling real-time rendering of environments with millions of dynamic plants. Read full paper: https://dl.acm.org/doi/10.1145/3820021 Original Copyright Free Music written, performed, and produced by TrackTribe https://www.youtube.com/watch?v=HK9z2cR8nlM&list=PLFEJ2E5exsjrjRzhJdOYOmTlcYfK3Hz7_

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  Coffee, Code & Shaders: Real-Time Rendering Conversations

  Ray-Tracing Massive Amounts of Animated Geometry

  Aug 5, 202647 min

  Today, we will discuss this paper presented by Holger Gruen at High Performance Graphics 2026 , which introduces an innovative method for applying ray tracing to massive amounts of animated geometry. The paper proposes using a tetrahedral cage that wraps around the original geometry, allowing deformations to be applied only to this simplified structure instead of processing millions of individual triangles. This successfully decouples mesh density from animation cost. Read full paper: https://gpuopen.com/learn/ray-tracing-massive-amounts-animated-geometry/ Original Copyright Free Music written, performed, and produced by TrackTribe https://www.youtube.com/watch?v=HK9z2cR8nlM&list=PLFEJ2E5exsjrjRzhJdOYOmTlcYfK3Hz7_

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  Coffee, Code & Shaders: Real-Time Rendering Conversations

  The Journy to Ninite - Geometry Virtualization and Rendering

  Jul 30, 202645 min

  This time, we will talk about the presentation given by Brian Karis from Epic Games during High Performance Graphics 2022 . He discusses the journey that led to the development of Nanite in Unreal Engine 5 as a means to resolve the technical budget for artists, leaving us with a lesson on constant experimentation and technical intuition in the quest to solve the most critical problems in the field. Watch full presentation: https://www.youtube.com/watch?v=NRnj_lnpORU Original Copyright Free Music written, performed, and produced by TrackTribe https://www.youtube.com/watch?v=HK9z2cR8nlM&list=PLFEJ2E5exsjrjRzhJdOYOmTlcYfK3Hz7_

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