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84 lines
2.8 KiB
84 lines
2.8 KiB
/* |
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013 Vladimír Vondruš <mosra@centrum.cz> |
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Permission is hereby granted, free of charge, to any person obtaining a |
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copy of this software and associated documentation files (the "Software"), |
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to deal in the Software without restriction, including without limitation |
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the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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and/or sell copies of the Software, and to permit persons to whom the |
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Software is furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included |
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in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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DEALINGS IN THE SOFTWARE. |
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*/ |
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#include "Icosphere.h" |
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#include "Math/Vector3.h" |
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#include "Trade/MeshData3D.h" |
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#include "MeshTools/Subdivide.h" |
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#include "MeshTools/RemoveDuplicates.h" |
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namespace Magnum { namespace Primitives { |
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Trade::MeshData3D Icosphere::solid(const UnsignedInt subdivisions) { |
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std::vector<UnsignedInt> indices{ |
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1, 2, 6, |
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1, 7, 2, |
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3, 4, 5, |
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4, 3, 8, |
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6, 5, 11, |
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5, 6, 10, |
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9, 10, 2, |
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10, 9, 3, |
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7, 8, 9, |
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8, 7, 0, |
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11, 0, 1, |
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0, 11, 4, |
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6, 2, 10, |
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1, 6, 11, |
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3, 5, 10, |
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5, 4, 11, |
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2, 7, 9, |
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7, 1, 0, |
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3, 9, 8, |
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4, 8, 0 |
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}; |
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std::vector<Vector3> positions{ |
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{0.0f, -0.525731f, 0.850651f}, |
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{0.850651f, 0.0f, 0.525731f}, |
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{0.850651f, 0.0f, -0.525731f}, |
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{-0.850651f, 0.0f, -0.525731f}, |
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{-0.850651f, 0.0f, 0.525731f}, |
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{-0.525731f, 0.850651f, 0.0f}, |
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{0.525731f, 0.850651f, 0.0f}, |
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{0.525731f, -0.850651f, 0.0f}, |
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{-0.525731f, -0.850651f, 0.0f}, |
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{0.0f, -0.525731f, -0.850651f}, |
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{0.0f, 0.525731f, -0.850651f}, |
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{0.0f, 0.525731f, 0.850651f} |
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}; |
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for(std::size_t i = 0; i != subdivisions; ++i) |
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MeshTools::subdivide(indices, positions, [](const Vector3& a, const Vector3& b) { |
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return (a+b).normalized(); |
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}); |
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MeshTools::removeDuplicates(indices, positions); |
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std::vector<Vector3> normals(positions); |
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return Trade::MeshData3D(Mesh::Primitive::Triangles, std::move(indices), {std::move(positions)}, {std::move(normals)}, std::vector<std::vector<Vector2>>{}); |
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} |
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}}
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