Distance Field Flow Map

[anonymous_user_f2b8b290]

Could someone explain why using distance to the nearest surface takes up 4 texture samples? Is this always the case with volume textures?

There’s one sampler needed for each clipmap. I can make it 1 in D3D11 but that will probably not make it for 4.9. DistanceToNearestSurface is just a single texture lookup though. (texture lookups affect performance, while texture samplers are the resource you can only have 16 of)