"I don't think I have the energy to work on any projects, I think I'm just gonna write some ideas down"
(several hours later)
"I worked out a nice way to join vertex strips of arbitrary sizes without floating point math. It turns out you can just force them to correlate via a common denominator."
@TheZouave I worked out a method for taking two arbitrary sequences of vertices and turn them into a triangle strip.
The broader thing I'm thinking about is a composable way of constructing things from splines and/or arbitrary vertex strips, but I'm not really trying to solve any specific problem, I just think about math for fun sometimes.
@aeva Yeah it's a general problem when joining meshes at different levels of detail. Lots of different solutions, all of them messy and annoying in excitingly different ways :-)
@aeva This one works fine, but it can be processor-intensive because something needs to look at both sides and figure out what the LCM is, and that's a parallelism-breaker.
Another approach is to have both sides do this, but to a common standard multiple, e.g. if one side is 4 and the other is 8, doesn't matter - they (and every other edge) tessellate up to 64 so they meet. Burns more tris, but it's easy to parallelise.
@TomF The broader thing I'm working on is finding a nice composable set of verbs for generating arbitrary mesh patches. In this case, extruding splines where the line segments might be the product of some sampling heuristic.
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