True bi-cubic Bezier patch script with 3D control points will be just 3-times lengthily (Mijx,y,z and so on...). One can use z-dispatch direction to make many similar MxN patches.
But for adaptive LOD we need patches with different Mi x Ni values.
1. we need to generate list of indexes on fly too
2. we can make big Mmax x Nmax local workgroup but smal Mi x Ni pathes
calculation may be not efficient.
1,2D Bezier, extrusions, lathe...
2D spline patches are used in procedural
Lathe flowers 2.
Almost all meshes are stored in one big vertex array.
It is possible:
just accelerate mesh generation by GPU
generate spline patches on fly
Not sure if control points transformation and spline
generation on fly will be faster than one vertex array transformation.
But one can effectively generate patches on fly for interactive LOD.
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