[fold] # fold.jl # MWE of moving mesh # # All the paper test sheet's vertices and faces are defined # according to the wavefront 3D object file format by the # following six lines of text: #= v -2.0 0 2.0 v -2.0 0 -2.0 v 2.0 0 -2.0 v 2.0 0 2.0 f 1 2 4 f 3 4 2 =# using GLMakie, GLMakie.FileIO us…

I don’t think the normal GLMakie shaders support different colors for each side, but in principle it’s possible. I’m not sure how easy it is nowadays to use a custom glsl shader, though. And a mesh should be good, a surface is still a mesh, it’s just a convenient parameterization of one over a grid. …

I haven’t experimented with lighting, but changing from mesh!() to poly!() and changing the color and alpha channel helped. poly!(ax3d, S_obs, color = RGBA(1, 1, 0.9, 0.9), strokewidth = 1) fig [fold]

I plotted the moving triangle as a surface defined by a convex combination of its vertices: using GeometryBasics #g(u,v);[0,1]x[0,1]->R^3 is the triangle, ABC, parameterization g(u,v; A=Point3(0, -2.0, 2.0), B=Point3(0, 2.0, 2.0), C=Point3(0, -2.0, -2.0))=v*(1-u) *A+(1-v)*B+u*v*C function triangl…

[image] empet: I plotted the moving triangle as a surface Nice! The origami example I am porting from JavaScript to Julia folds a kabuto (Samurai helmet) that in some places is more than 10 layers thick. Because some of those folds are toward the camera and some are away from the camera, it s…

Can the two sides of a mesh have a different color (e.g., origami paper)?

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rafael.guerra April 5, 2023, 10:56pm 3

Could an appropriate light position help a bit here?

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Can the two sides of a mesh have a different color (e.g., origami paper)?

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