Conversation
would you mind inspiring me on a good grid to find the sign change on? not sure of the question! Finding surface? We just use 8 corners of a cube. Tetra would would work too. We traverse space in a semi coherent way - that's where the curve comes in. Not directly for finding surf? Not sure I follow sorry so 4 x (4x4x4) along the curve is what I do. but then within the 4x4x4 you just check sign change btw the voxel centers? there's a switch to dual at some point - can remind me - are the 4^3 blocks centres or corners? we do corners for SDF evaluation, then emit at most one splat per cell (looking at 8 corners) yeah. But are the corners in 4^3 bricks spaced 3 voxels apart, or did you do the fetch neighbour blocks thing? I forget we fetch neighbours, 4^3 blocks are 4 voxels apart, no repeated evaluating of SDF :) 
