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80 lines
3.2 KiB
80 lines
3.2 KiB
/* |
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
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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 "UVSphere.h" |
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#include "Magnum/Mesh.h" |
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#include "Magnum/Math/Color.h" |
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#include "Magnum/Primitives/Implementation/Spheroid.h" |
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#include "Magnum/Primitives/Implementation/WireframeSpheroid.h" |
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#include "Magnum/Trade/MeshData3D.h" |
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namespace Magnum { namespace Primitives { |
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Trade::MeshData3D uvSphereSolid(UnsignedInt rings, UnsignedInt segments, UVSphereTextureCoords textureCoords) { |
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CORRADE_ASSERT(rings >= 2 && segments >= 3, |
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"Primitives::uvSphereSolid(): at least two rings and three segments expected", |
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(Trade::MeshData3D{MeshPrimitive::Triangles, {}, {}, {}, {}, {}, nullptr})); |
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Implementation::Spheroid sphere(segments, textureCoords == UVSphereTextureCoords::Generate ? |
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Implementation::Spheroid::TextureCoords::Generate : |
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Implementation::Spheroid::TextureCoords::DontGenerate); |
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Float textureCoordsVIncrement = 1.0f/rings; |
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Rad ringAngleIncrement(Constants::pi()/rings); |
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/* Bottom cap vertex */ |
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sphere.capVertex(-1.0f, -1.0f, 0.0f); |
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/* Vertex rings */ |
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sphere.hemisphereVertexRings(rings-1, 0.0f, -Rad(Constants::piHalf())+ringAngleIncrement, ringAngleIncrement, textureCoordsVIncrement, textureCoordsVIncrement); |
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/* Top cap vertex */ |
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sphere.capVertex(1.0f, 1.0f, 1.0f); |
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/* Faces */ |
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sphere.bottomFaceRing(); |
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sphere.faceRings(rings-2); |
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sphere.topFaceRing(); |
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return sphere.finalize(); |
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} |
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Trade::MeshData3D uvSphereWireframe(const UnsignedInt rings, const UnsignedInt segments) { |
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CORRADE_ASSERT(rings >= 2 && rings%2 == 0 && segments >= 4 && segments%2 == 0, |
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"Primitives::uvSphereWireframe(): multiples of 2 rings and multiples of 4 segments expected", |
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(Trade::MeshData3D{MeshPrimitive::Triangles, {}, {}, {}, {}, {}, nullptr})); |
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Implementation::WireframeSpheroid sphere(segments/4); |
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/* Make sphere */ |
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sphere.bottomHemisphere(0.0f, rings/2); |
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sphere.ring(0.0f); |
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sphere.topHemisphere(0.0f, rings/2); |
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return sphere.finalize(); |
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} |
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}}
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