Nvidia has updated its RTX Mega Geometry SDK to 2.0, adding streaming support for “continuous level-of-detail clusters” to handle high-density meshes, according to the developer blog post. Nvidia says it works even for scenes too big for the VRAM budget. The technology is in addition to its RTX Kit, arriving alongside RTX Kit 2026.3. The announcement comes close to the release of Gears of War: E-Day, which makes use of RTX Mega Geometry technology. Nvidia has not explicitly said what version of Mega Geometry the game uses.
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Mega Geometry “organizes detailed meshes into clusters so ray-traced scenes can adapt geometric detail efficiently,” according to Nvidia. The SDK appeared at version 0.9.0 beta in 2025 and found its way into Alan Wake 2’s title update 1.2.8 early that same year. Our test on an RTX 4090 found about 1GB of VRAM saved with a performance boost of 13%, at native 4K and with DLSS Quality. On an 8GB graphics card, that 1GB is an eighth of the memory.
The SDK is at version 2.0.0 on GitHub as of this week. The technology makes dense scenes less expensive to ray trace, with 2.0 specifically targeting geometry that doesn’t fit in VRAM. This means that “a scene’s source geometry no longer has to fit in VRAM [with detail] bounded by a memory budget rather than by mesh count,” according to Nvidia’s changelog.
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