This is indeed Delaunay triangulation, barycentric coordinates, linear RGB and projections on the edges for the points outside of the mesh. You got everything right!
Having a nice blending along the edges doesn't seem straightforward. I have a few options in mind but nothing obviously right (working with a voronoi diagram instead of a delaunay one, bezier interpolation)
This is indeed Delaunay triangulation, barycentric coordinates, linear RGB and projections on the edges for the points outside of the mesh. You got everything right!
Having a nice blending along the edges doesn't seem straightforward. I have a few options in mind but nothing obviously right (working with a voronoi diagram instead of a delaunay one, bezier interpolation)