# Ray tracing massive amounts of animated geometry using tetrahedral cages

DevFeed: [Ray tracing massive amounts of animated geometry using tetrahedral cages](<https://devfeed.tech/articles/ray-tracing-massive-amounts-of-animated-geometry-using-tetrahedral-cages-15048.md>)

Original publisher: [Read original article](<https://gpuopen.com/learn/ray-tracing-massive-amounts-animated-geometry/>)

Author: Holger Gruen

Published: 2026-07-22T01:00:00Z

Content type: article

Language: en

Sources: [AMD GPUOpen](<https://devfeed.tech/sources/amd-gpuopen.md>)

Topics: [Ray Tracing](<https://devfeed.tech/topics/ray-tracing.md>), [GPU](<https://devfeed.tech/topics/gpu.md>), [real-time](<https://devfeed.tech/topics/real-time.md>)

Tags: [agility-sdk](<https://devfeed.tech/tags/agility-sdk.md>), [animation](<https://devfeed.tech/tags/animation.md>), [architecture](<https://devfeed.tech/tags/architecture.md>), [article-release](<https://devfeed.tech/tags/article-release.md>), [directx](<https://devfeed.tech/tags/directx.md>), [game-development](<https://devfeed.tech/tags/game-development.md>), [gpu](<https://devfeed.tech/tags/gpu.md>), [graphics](<https://devfeed.tech/tags/graphics.md>), [graphics-apis](<https://devfeed.tech/tags/graphics-apis.md>), [memory](<https://devfeed.tech/tags/memory.md>), [microsoft-agility-sdk](<https://devfeed.tech/tags/microsoft-agility-sdk.md>), [microsoft-directx](<https://devfeed.tech/tags/microsoft-directx.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [performance](<https://devfeed.tech/tags/performance.md>), [ray-tracing](<https://devfeed.tech/tags/ray-tracing.md>), [raytracing](<https://devfeed.tech/tags/raytracing.md>), [real-time](<https://devfeed.tech/tags/real-time.md>), [research](<https://devfeed.tech/tags/research.md>), [reuse](<https://devfeed.tech/tags/reuse.md>), [technical-article](<https://devfeed.tech/tags/technical-article.md>), [technical-articles](<https://devfeed.tech/tags/technical-articles.md>), [white-paper](<https://devfeed.tech/tags/white-paper.md>)

## AI overview

The article explains a ray-tracing method for massive animated scenes that uses low-resolution tetrahedral cages to deform geometry while reusing static mini-meshes and mini-BLASes. This reduces per-frame update and memory costs, with the paper demonstrating roughly 585 million animated triangles at 60 frames per second on an AMD Radeon RX 9070 XT at 1080p.

## Source excerpt

Animate compact tetrahedral cages and reuse static mini-BLASes to ray-trace hundreds of millions of triangles in real time, dramatically cutting per-frame update and memory costs for dense foliage, grass, and crowds.