Hi there, I would also suggest to create a cone with an additive material using a gradient/fog texture. Unfortunately the volumetric fog is voxel based and this tends to create artefacts with movement. Additive mode makes it much more optimised than translucency, and much much more optimised than using volumetric fog, while unfortunately it’s not as straightforward as just using volumetrics but at least you won’t have any visual glitches!