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move texture descriptions into examples
This commit is contained in:
Adrian Mariano
parent
0511dbd967
commit
b780191c20
1 changed files with 151 additions and 162 deletions
313
skin.scad
313
skin.scad
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@ -2664,30 +2664,7 @@ function associate_vertices(polygons, split, curpoly=0) =
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// In the descriptions below, imagine the textures positioned on the XY plane, so "horizontal" refers to the "sideways" dimensions of the texture and
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// "up" and "down" refer to the depth dimension. If a texture is placed on a cylinder the "depth" will become the radial direction and the "horizontal"
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// direction will be the vertical and tangential directions on the cylindrical surface. All horizontal dimensions for VNF textures are relative to the unit square
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// on which the textures are defined, so a value of 0.25 for a gap or inset will refer to 1/4 of the texture's full length and width.
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// Texture Values:
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// "bricks" = Heightfield = A brick-wall pattern. Giving `n=` sets the number of heightfield samples to `n x n`. Default: 24. Giving `roughness=` adds a level of height randomization to add roughness to the texture. Default: 0.05. Use `style="convex"`.
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// "bricks_vnf" = VNF Tile = VNF version of "bricks". Giving `gap=` sets the "mortar" gap between adjacent bricks, default 0.05. Giving `inset=` specifies that the top face of the brick is smaller than the bottom of the brick by `inset` on each of the four sides. If `gap` is zero then an `inset` value close to 0.5 will cause bricks to come to a sharp pointed edge, with just a tiny flat top surface. Note that `gap+inset` must be strictly smaller than 0.5. Default is `inset=0.05`.
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// "checkers" = VNF Tile = A pattern of alternating checkerboard squares. Giving `inset=` specifies that the top face of the checker surface is smaller than the bottom by `inset` on each of the four sides. As `inset` approaches 0.5 the tops come to sharp corners. You must set `inset` strictly between 0 and 0.5. Default: 0.05.
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// "cones" = VNF Tile = Raised conical spikes. Giving `n=` sets `$fn` for the cone (will be rounded to a multiple of 4). Default: 16. Giving `inset=` specifies the horizontal inset of the base of the cone, relative to the tile edges. The `inset` value must be nonnegative and smaller than 0.5. Default: 0.
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// "cubes" = VNF Tile = Cornercubes texture.
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// "diamonds" = Heightfield = Four-sided pyramid with the corners of the base aligned aligned with the axes. Compare to "pyramids". Useful for knurling. Giving `n=` sets the number of heightfield samples to `n x n`. Default: 2. Use `style="concave"` for pointed bumps, or `style="default"` or `style="alt"` for a diagonal ribs.
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// "diamonds_vnf" = VNF Tile = VNF version of "diamonds".
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// "dimples" = VNF Tile = Round divots. Giving `n=` sets `$fn` for the curve (will be rounded to a multiple of 4). Default: 16. Giving `inset=` specifies the horizontal distance of the flat region around the dimple relative to the edge of the tile. Must be nonnegative and strictly less than 0.5. Default: 0.05.
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// "dots" = VNF Tile = Raised round bumps. Giving `n=` sets `$fn` for the curve (will be rounded to a multiple of 4). Default: 16. Giving `inset=` specifies the horizontal inset of the dots, relative to the edge of the tile. Must be nonnegative and strictly less than 0.5. Default: 0.05.
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// "hex_grid" = VNF Tile = A hexagonal grid defined by V-grove borders. Giving `inset=` specifies the horizontal inset of the left and right edges of the hexagonal tops, relative to their bottoms. This means the V-groove top width for grooves running parallel to the Y axis will be double the inset value. If the texture is scaled in the Y direction by sqrt(3) then the groove will be uniform on all six sides of the hexagon. Inset must be strictly between 0 and 0.5, default: 0.1.
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// "hills" = Heightfield = Wavy sine-wave hills and valleys, Giving `n=` sets the number of heightfield samples to `n` x `n`. Default: 12. Set `style="quincunx"`.
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// "pyramids" = Heightfield = Four-sided pyramid with the edges of the base aligned with the axess. Compare to "diamonds". Useful for knurling. Giving `n=` sets the number of heightfield samples to `n` by `n`. Default: 2. Set style to "convex". Note that style="concave" or style="min_edge" produce mini-diamonds with flat squares in between.
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// "pyramids_vnf" = VNF Tile = VNF version of "pyramids".
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// "ribs" = Heightfield = Vertically aligned triangular ribs. Giving `n=` sets the number of heightfield samples to `n` by 1. Default: 2. The choice of style does not matter.
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// "rough" = Heightfield = A pseudo-randomized rough texture. Giving `n=` sets the number of heightfield samples to `n` by `n`. Default: 32. The `roughness=` parameter specifies the height of the random texture. Default: 0.2.
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// "tri_grid" = VNF Tile = A triangular grid defined by V-groove borders Giving `inset=` specifies the horizontal inset of the triangular tops, relative to their bottoms, along the horizontal edges (parallel to the X axis) of the triangles. This means the V-groove top width of the grooves parallel to the X axis will be double the inset value. If the tile is scaled in the Y direction by sqrt(3) then the groove will be uniform on the three sides of the triangle. The inset must be strictly between 0 and 1/6, default: 0.05.
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// "trunc_diamonds" = VNF Tile = Truncated diamonds, four-sided pyramids with the base corners aligned with the axes and the top cut off. Or you can interpret it as V-groove lines at 45º angles. Giving `inset=` specifies the horizontal inset of the square top face compared to the bottom face along all four edges. This means the V-groove top width will be double the inset value. The inset must be strictly between 0 and sqrt(2)/4, which is about 0.35. Default: 0.1.
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// "trunc_pyramids" = Heightfield = Truncated pyramids, four sided pyramids with the base edges aligned to the axes and the top cut off. Giving `n=` sets the number of heightfield samples to `n` by `n`. Default: 6. Set `style="convex"`.
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// "trunc_pyramids_vnf" = VNF Tile = Truncated pyramids, four sided pyramids with the base edges aligned to the axes and the top cut off. You can also regard this as a grid of V-grooves. Giving `inset=` specifies the horizontal inset of the flat square tops on all four sides relative to their bottoms. This means the V-groove top width will be double the inset value. The inset must be strictly between 0 and 0.5. Default: 0.1.
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// "trunc_ribs" = Heightfield = Truncated ribs. Vertically aligned triangular ribs with the tops cut off, and with rib separation equal to the width of the flat tops. Giving `n=` sets the number of heightfield samples to `n` by `1`. Default: 4. The style does not matter.
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// "trunc_ribs_vnf" = VNF Tile = Vertically aligned triangular ribs with the tops cut off. Giving `gap=` sets the bottom gap between ribs. Giving `inset=` specifies the horizontal inset of the rib top face, relative to the bottom on both sides. In order to fit, gap+2*inset must be less than 1. (This is because the gap is counted once but the inset counts on both sides.) Defaults: gap=1/4, inset=1/4.
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// "wave_ribs" = Heightfield = Vertically aligned wavy ribs. Giving `n=` sets the number of heightfield samples to `n` by `1`. Default: 8. The style does not matter.
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// on which the textures are defined, so a value of 0.25 for a gap or inset will refer to 1/4 of the texture's full length and/or width. All supported textures appear below in the examples.
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// Arguments:
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// tex = The name of the texture to get.
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// ---
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@ -2696,122 +2673,13 @@ function associate_vertices(polygons, split, curpoly=0) =
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// gap = The gap between logically distinct parts of a VNF tile. (ie: gap between bricks, gap between truncated ribs, etc.)
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// roughness = The amount of roughness used on the surface of some heightfield textures. Generally between 0 and 0.5.
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// See Also: heightfield(), cylindrical_heightfield(), texture()
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// Example(3D): "ribs" texture.
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// tex = texture("ribs");
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// linear_sweep(
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// rect(50), texture=tex, h=40, tex_scale=3,
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// tex_size=[10,10], style="concave"
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// );
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// Example(3D): Truncated "trunc_ribs" texture.
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// tex = texture("trunc_ribs");
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// linear_sweep(
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// rect(50), h=40, texture=tex,
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// tex_scale=3, tex_size=[10,10],
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// style="concave"
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// );
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// Example(3D): "trunc_ribs_vnf" texture.
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// tex = texture("trunc_ribs_vnf", gap=0.25, inset=1/6);
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// linear_sweep(
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// rect(50), h=40, texture=tex,
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// tex_scale=3, tex_size=[10,10]
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// );
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// Example(3D): "wave_ribs" texture.
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// tex = texture("wave_ribs");
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// linear_sweep(
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// rect(50), h=40, texture=tex,
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// tex_size=[10,10], tex_scale=3, style="concave"
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// );
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// Example(3D): "diamonds" texture.
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// tex = texture("diamonds");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="concave"
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// );
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// Example(3D): "diamonds" texture can give diagonal ribbing.
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// tex = texture("diamonds");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="default"
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// );
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// Example(3D): "diamonds" texture gives diagonal ribbing the other direction.
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// tex = texture("diamonds");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="alt"
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// );
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// Example(3D): "diamonds_vnf" texture.
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// tex = texture("diamonds_vnf");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "pyramids" texture, with the style that produces the advertised pyramid shape.
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// tex = texture("pyramids");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="convex"
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// );
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// Example(3D): "pyramids" texture, with "concave" produces a mini-diamon texture. Note that "min_edge" also gives this result.
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// tex = texture("pyramids");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="concave"
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// );
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// Example(3D): "pyramids_vnf" texture.
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// tex = texture("pyramids_vnf");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "trunc_pyramids" texture.
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// tex = texture("trunc_pyramids");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="convex"
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// );
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// Example(3D): "trunc_pyramids_vnf" texture.
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// tex = texture("trunc_pyramids_vnf");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "trunc_pyramids_vnf" texture with large inset
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// tex = texture("trunc_pyramids_vnf", inset=.4);
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "hills" texture.
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// tex = texture("hills");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="quincunx"
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// );
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// Example(3D): "dots" texture.
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// tex = texture("dots");
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// linear_sweep(
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// rect(50), texture=tex, h=40, tex_scale=1,
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// tex_size=[10,10]
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// );
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// Example(3D): "dimples" texture.
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// tex = texture("dimples");
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// linear_sweep(
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// rect(50), texture=tex, h=40, tex_scale=1,
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// tex_size=[10,10]
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// );
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// Example(3D): "cones" texture.
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// tex = texture("cones");
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// linear_sweep(
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// rect(50), texture=tex, h=40, tex_scale=3,
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// tex_size=[10,10]
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// );
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// Example(3D): "bricks" texture.
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// Example(3D): **"bricks"** (Heightfield) = A brick-wall pattern. Giving `n=` sets the number of heightfield samples to `n x n`. Default: 24. Giving `roughness=` adds a level of height randomization to add roughness to the texture. Default: 0.05. Use `style="convex"`.
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// tex = texture("bricks");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "bricks_vnf" texture.
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// Example(3D): **"bricks_vnf"** (VNF) = VNF version of "bricks". Giving `gap=` sets the "mortar" gap between adjacent bricks, default 0.05. Giving `inset=` specifies that the top face of the brick is smaller than the bottom of the brick by `inset` on each of the four sides. If `gap` is zero then an `inset` value close to 0.5 will cause bricks to come to a sharp pointed edge, with just a tiny flat top surface. Note that `gap+inset` must be strictly smaller than 0.5. Default is `inset=0.05`.
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// tex = texture("bricks_vnf");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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@ -2823,43 +2691,73 @@ function associate_vertices(polygons, split, curpoly=0) =
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "trunc_diamonds" texture.
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// tex = texture("trunc_diamonds");
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// Example(3D): **"checker"** (VNF) = A pattern of alternating checkerboard squares. Giving `inset=` specifies that the top face of the checker surface is smaller than the bottom by `inset` on each of the four sides. As `inset` approaches 0.5 the tops come to sharp corners. You must set `inset` strictly between 0 and 0.5. Default: 0.05.
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// tex = texture("checkers");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "trunc_diamonds" texture with large inset.
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// tex = texture("trunc_diamonds",inset=.25);
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// Example(3D): "checkers" texture with large inset.
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// tex = texture("checkers",inset=0.25);
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "tri_grid" texture. With uniform tex_size the triangles are squished and grooves uneven.
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// tex = texture("tri_grid");
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// Example(3D): **"cones"** (VNF) = Raised conical spikes. Giving `n=` sets `$fn` for the cone (will be rounded to a multiple of 4). Default: 16. Giving `inset=` specifies the horizontal inset of the base of the cone, relative to the tile edges. The `inset` value must be nonnegative and smaller than 0.5. Default: 0.
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// tex = texture("cones");
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// linear_sweep(
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// rect(50), texture=tex, h=40, tex_scale=3,
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// tex_size=[10,10]
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// );
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// Example(3D): **"cubes"** (VNF) = Corner-cubes texture. Note that this texture needs to be scaled vertically by sqrt(3) to have its correct aspect
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// tex = texture("cubes");
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// linear_sweep(
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// rect(50), texture=tex, h=40
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// tex_size=[10,10]
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// );
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// Example(3D): "cubes" texture at approximately the correct scale.
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// tex = texture("cubes");
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// linear_sweep(
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// rect(50), texture=tex, h=40, tex_scale=3,
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// tex_size=[12,20]
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// );
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// Example(3D): **"diamonds"** (Heightfield) = Four-sided pyramid with the corners of the base aligned aligned with the axes. Compare to "pyramids". Useful for knurling. Giving `n=` sets the number of heightfield samples to `n x n`. Default: 2. Use `style="concave"` for pointed bumps, or `style="default"` or `style="alt"` for a diagonal ribs.
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// tex = texture("diamonds");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="concave"
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// );
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// Example(3D): "diamonds" texture can give diagonal ribbing with "default" style.
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// tex = texture("diamonds");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="default"
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// );
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// Example(3D): "diamonds" texture gives diagonal ribbing the other direction with "alt" style.
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// tex = texture("diamonds");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="alt"
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// );
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// Example(3D): **"diamonds_vnf"* (VNF) = VNF version of "diamonds".
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// tex = texture("diamonds_vnf");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "tri_grid" texture with large inset. (Max inset for tri_grid is 1/6.)
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// tex = texture("tri_grid",inset=.12);
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// Example(3D): **"dimples"** (VNF) = Round divots. Giving `n=` sets `$fn` for the curve (will be rounded to a multiple of 4). Default: 16. Giving `inset=` specifies the horizontal distance of the flat region around the dimple relative to the edge of the tile. Must be nonnegative and strictly less than 0.5. Default: 0.05.
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// tex = texture("dimples");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10]
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// );
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// Example(3D): "tri_grid" texture scaled by sqrt(3) so triangles are equilateral and grooves are all the same width. Note we have to ensure the height evenly fits the scaled texture tiles.
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// tex = texture("tri_grid",inset=.04);
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// Example(3D): **"dots"** (VNF) = Raised round bumps. Giving `n=` sets `$fn` for the curve (will be rounded to a multiple of 4). Default: 16. Giving `inset=` specifies the horizontal inset of the dots, relative to the edge of the tile. Must be nonnegative and strictly less than 0.5. Default: 0.05.
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// tex = texture("dots");
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// linear_sweep(
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// rect(50), texture=tex, h=quantup(40,10*sqrt(3)),
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// tex_size=[10,10*sqrt(3)], tex_scale=3
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// rect(50), texture=tex, h=40
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// tex_size=[10,10]
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// );
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// Example(3D): "tri_grid" texture. Here scale is approximately sqrt(3) taller so triangles are close to equilateral.
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// tex = texture("tri_grid");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[12.5,20]
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// );
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// Example(3D): "hex_grid" texture.
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// Example(3D): **"hex_grid"** (VNF) = A hexagonal grid defined by V-grove borders. Giving `inset=` specifies the horizontal inset of the left and right edges of the hexagonal tops, relative to their bottoms. This means the V-groove top width for grooves running parallel to the Y axis will be double the inset value. If the texture is scaled in the Y direction by sqrt(3) then the groove will be uniform on all six sides of the hexagon. Inset must be strictly between 0 and 0.5, default: 0.1.
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// tex = texture("hex_grid");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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@ -2883,24 +2781,115 @@ function associate_vertices(polygons, split, curpoly=0) =
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// rect(50), texture=tex, h=40,
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// tex_size=[12.5,20]
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// );
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// Example(3D): "checkers" texture.
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// tex = texture("checkers");
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// Example(3D): **"hills"** (Heightfield) = Wavy sine-wave hills and valleys, Giving `n=` sets the number of heightfield samples to `n` x `n`. Default: 12. Set `style="quincunx"`.
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// tex = texture("hills");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="quincunx"
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// );
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// Example(3D): **"pyramids"** (Heightfield) = Four-sided pyramid with the edges of the base aligned with the axess. Compare to "diamonds". Useful for knurling. Giving `n=` sets the number of heightfield samples to `n` by `n`. Default: 2. Set style to "convex". Note that style="concave" or style="min_edge" produce mini-diamonds with flat squares in between.
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// tex = texture("pyramids");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="convex"
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// );
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// Example(3D): "pyramids" texture, with "concave" produces a mini-diamond texture. Note that "min_edge" also gives this result.
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// tex = texture("pyramids");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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// tex_size=[10,10], style="concave"
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// );
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// Example(3D): **"pyramids_vnf"** (VNF) = VNF version of "pyramids".
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// tex = texture("pyramids_vnf");
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// linear_sweep(
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// rect(50), texture=tex, h=40,
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||||
// tex_size=[10,10]
|
||||
// );
|
||||
// Example(3D): "checkers" texture with large inset.
|
||||
// tex = texture("checkers",inset=0.25);
|
||||
// Example(3D): **"ribs"** (Heightfield) = Vertically aligned triangular ribs. Giving `n=` sets the number of heightfield samples to `n` by 1. Default: 2. The choice of style does not matter.
|
||||
// tex = texture("ribs");
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[10,10]
|
||||
// rect(50), texture=tex, h=40, tex_scale=3,
|
||||
// tex_size=[10,10], style="concave"
|
||||
// );
|
||||
// Example(3D): "rough" texture.
|
||||
// Example(3D): **"rough"** (Heightfield) = A pseudo-randomized rough texture. Giving `n=` sets the number of heightfield samples to `n` by `n`. Default: 32. The `roughness=` parameter specifies the height of the random texture. Default: 0.2.
|
||||
// tex = texture("rough");
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[10,10], style="min_edge"
|
||||
// );
|
||||
// Example(3D): **"tri_grid"** (VNF) = A triangular grid defined by V-groove borders Giving `inset=` specifies the horizontal inset of the triangular tops, relative to their bottoms, along the horizontal edges (parallel to the X axis) of the triangles. This means the V-groove top width of the grooves parallel to the X axis will be double the inset value. (The other grooves are wider.) If the tile is scaled in the Y direction by sqrt(3) then the groove will be uniform on the three sides of the triangle. The inset must be strictly between 0 and 1/6, default: 0.05.
|
||||
// tex = texture("tri_grid");
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[10,10]
|
||||
// );
|
||||
// Example(3D): "tri_grid" texture with large inset. (Max inset for tri_grid is 1/6.)
|
||||
// tex = texture("tri_grid",inset=.12);
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[10,10]
|
||||
// );
|
||||
// Example(3D): "tri_grid" texture scaled by sqrt(3) so triangles are equilateral and grooves are all the same width. Note we have to ensure the height evenly fits the scaled texture tiles.
|
||||
// tex = texture("tri_grid",inset=.04);
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=quantup(40,10*sqrt(3)),
|
||||
// tex_size=[10,10*sqrt(3)], tex_scale=3
|
||||
// );
|
||||
// Example(3D): "tri_grid" texture. Here scale is approximately sqrt(3) taller so triangles are close to equilateral.
|
||||
// tex = texture("tri_grid");
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[12.5,20]
|
||||
// );
|
||||
// Example(3D): **"trunc_diamonds"** (VNF) = Truncated diamonds, four-sided pyramids with the base corners aligned with the axes and the top cut off. Or you can interpret it as V-groove lines at 45º angles. Giving `inset=` specifies the horizontal inset of the square top face compared to the bottom face along all four edges. This means the V-groove top width will be double the inset value. The inset must be strictly between 0 and sqrt(2)/4, which is about 0.35. Default: 0.1.
|
||||
// tex = texture("trunc_diamonds");
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[10,10]
|
||||
// );
|
||||
// Example(3D): "trunc_diamonds" texture with large inset.
|
||||
// tex = texture("trunc_diamonds",inset=.25);
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[10,10]
|
||||
// );
|
||||
// Example(3D): **"trunc_pyramids"** (Heightfield) = Truncated pyramids, four sided pyramids with the base edges aligned to the axes and the top cut off. Giving `n=` sets the number of heightfield samples to `n` by `n`. Default: 6. Set `style="convex"`.
|
||||
// tex = texture("trunc_pyramids");
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[10,10], style="convex"
|
||||
// );
|
||||
// Example(3D): **"trunc_pyramids_vnf"** (VNF) = Truncated pyramids, four sided pyramids with the base edges aligned to the axes and the top cut off. You can also regard this as a grid of V-grooves. Giving `inset=` specifies the horizontal inset of the flat square tops on all four sides relative to their bottoms. This means the V-groove top width will be double the inset value. The inset must be strictly between 0 and 0.5. Default: 0.1.
|
||||
// tex = texture("trunc_pyramids_vnf");
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[10,10]
|
||||
// );
|
||||
// Example(3D): "trunc_pyramids_vnf" texture with large inset
|
||||
// tex = texture("trunc_pyramids_vnf", inset=.4);
|
||||
// linear_sweep(
|
||||
// rect(50), texture=tex, h=40,
|
||||
// tex_size=[10,10]
|
||||
// );
|
||||
// Example(3D): **"trunc_ribs"** (Heightfield) = Truncated ribs. Vertically aligned triangular ribs with the tops cut off, and with rib separation equal to the width of the flat tops. Giving `n=` sets the number of heightfield samples to `n` by `1`. Default: 4. The style does not matter.
|
||||
// tex = texture("trunc_ribs");
|
||||
// linear_sweep(
|
||||
// rect(50), h=40, texture=tex,
|
||||
// tex_scale=3, tex_size=[10,10],
|
||||
// style="concave"
|
||||
// );
|
||||
// Example(3D): **"trunc_ribs_vnf"** (VNF) = Vertically aligned triangular ribs with the tops cut off. Giving `gap=` sets the bottom gap between ribs. Giving `inset=` specifies the horizontal inset of the rib top face, relative to the bottom on both sides. In order to fit, gap+2*inset must be less than 1. (This is because the gap is counted once but the inset counts on both sides.) Defaults: gap=1/4, inset=1/4.
|
||||
// tex = texture("trunc_ribs_vnf", gap=0.25, inset=1/6);
|
||||
// linear_sweep(
|
||||
// rect(50), h=40, texture=tex,
|
||||
// tex_scale=3, tex_size=[10,10]
|
||||
// );
|
||||
// Example(3D): **"wave_ribs"** (Heightfield) = Vertically aligned wavy ribs. Giving `n=` sets the number of heightfield samples to `n` by `1`. Default: 8. The style does not matter.
|
||||
// tex = texture("wave_ribs");
|
||||
// linear_sweep(
|
||||
// rect(50), h=40, texture=tex,
|
||||
// tex_size=[10,10], tex_scale=3, style="concave"
|
||||
// );
|
||||
|
||||
function texture(tex, n, inset, gap, roughness) =
|
||||
assert(is_undef(n) || all_positive([n]), "n must be a positive value if given")
|
||||
|
|
|
|||
Loading…
Reference in a new issue