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add remark on triangulation of vnfs

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Adrian Mariano 2024-01-17 19:55:59 -05:00
parent 4308fa3b18
commit 85fec74abc
1 changed files with 10 additions and 0 deletions
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@ -2876,6 +2876,16 @@ function associate_vertices(polygons, split, curpoly=0) =
// cyl(d=10/PI, h=5, chamfer=0, // cyl(d=10/PI, h=5, chamfer=0,
// texture=texture("bricks_vnf"), tex_samples=8, tex_reps=[6,3], tex_depth=.2); // texture=texture("bricks_vnf"), tex_samples=8, tex_reps=[6,3], tex_depth=.2);
// } // }
// Continues:
// Note that when the VNF is sliced,
// extra points can be introduced in the interior of faces leading to unexpected irregularities in the textures, which appear
// as extra triangles. These artifacts can be minimized by making the VNF texture's faces as large as possible rather than using
// a triangulated VNF, but depending on the specific VNF texture, it may be impossible to entirely eliminate them.
// Figure(3D,Big,NoAxes,VPR=[140.9,0,345.7],VPT=[9.48289,-0.88709,5.7837],VPD=39.5401): The left shows a normal bricks_vnf texture. The right shows a texture that was first passed through {{vnf_triangulate()}}. Note the extra triangle artifacts visible across the brick faces.
// tex = texture("bricks_vnf");
// cyl(d=10,h=15,texture=tex, tex_reps=[4,2],tex_samples=5);
// up(7)fwd(-3)right(15)cyl(d=10,h=15,texture=vnf_triangulate(tex), tex_reps=[4,2],tex_samples=5);
// Function: texture() // Function: texture()
// Topics: Textures, Knurling // Topics: Textures, Knurling