# Threejs Fake Volumetrics with meshes

> This was a first attempt at making Fake Volumetric light. Aka "God Rays". Doing this with post processing is very expensive. I decided to try knits. It's…

Canonical page: https://andersonmancini.dev/videos/threejs-fake-volumetrics-with-meshes

Published: 2022-04-03 · Duration: 0:40 · Category: Projects · Tags: three.js, post-processing, threejsjourney, volumetric, volumetric-light, gor-days, blender

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This was a first attempt at making Fake Volumetric light. Aka "God Rays". Doing this with post processing is very expensive. I decided to try knits. It's ugly, I know. But it mimics the effect well and has zero impact on performance. The idea is to replace this with a better God Rays, calculated in post processing.