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Could you expand on the problem in sdf approaches? I’ve always thought or assumed that if there’s high frequency features in a signed distance function rep you
by carterschonwald 4y ago
Could you expand on the problem in sdf approaches? I’ve always thought or assumed that if there’s high frequency features in a signed distance function rep you could use gradient / derivative info to do adaptive sampling ?
- Jasper_ 4y agoI'm referring to a discrete SDF, where you have a 2D/3D grid storing distance samples, e.g. font textures, or mesh distance field textures [0]. You can use a tree of textures to get adaptive sampling, but a single texture gives you a fixed resolution grid. [0] See the "Quality" section here: https://docs.unrealengine.com/4.27/en-US/BuildingWorlds/LightingAndShadows/MeshDistanceFields/ https://docs.unrealengine.com/4.27/en-US/BuildingWorlds/Ligh...
- carterschonwald 4y agoGotcha. Nyquist and friends strike again!