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202 lines
6.6 KiB
202 lines
6.6 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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2020, 2021, 2022, 2023 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 <vector> |
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#include <Corrade/Containers/Pair.h> |
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#include "Magnum/Math/Color.h" |
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#include "Magnum/Math/FunctionsBatch.h" |
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#include "Magnum/MeshTools/CompressIndices.h" |
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#include "Magnum/MeshTools/Concatenate.h" |
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#include "Magnum/MeshTools/Duplicate.h" |
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#include "Magnum/MeshTools/FlipNormals.h" |
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#include "Magnum/MeshTools/GenerateNormals.h" |
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#include "Magnum/MeshTools/Interleave.h" |
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#include "Magnum/MeshTools/RemoveDuplicates.h" |
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#include "Magnum/MeshTools/Transform.h" |
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#include "Magnum/Primitives/Cube.h" |
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#include "Magnum/Trade/MeshData.h" |
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#ifdef MAGNUM_BUILD_DEPRECATED |
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#define _MAGNUM_NO_DEPRECATED_COMBINEINDEXEDARRAYS |
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#include "Magnum/MeshTools/CombineIndexedArrays.h" |
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#endif |
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using namespace Magnum; |
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using namespace Magnum::Math::Literals; |
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/* Make sure the name doesn't conflict with any other snippets to avoid linker |
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warnings, unlike with `int main()` there now has to be a declaration to |
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avoid -Wmisssing-prototypes */ |
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void mainMeshTools(); |
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void mainMeshTools() { |
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#ifdef MAGNUM_BUILD_DEPRECATED |
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{ |
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CORRADE_IGNORE_DEPRECATED_PUSH |
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/* [combineIndexedArrays] */ |
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std::vector<UnsignedInt> vertexIndices; |
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std::vector<Vector3> positions; |
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std::vector<UnsignedInt> normalTextureIndices; |
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std::vector<Vector3> normals; |
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std::vector<Vector2> textureCoordinates; |
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std::vector<UnsignedInt> indices = MeshTools::combineIndexedArrays( |
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std::make_pair(std::cref(vertexIndices), std::ref(positions)), |
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std::make_pair(std::cref(normalTextureIndices), std::ref(normals)), |
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std::make_pair(std::cref(normalTextureIndices), std::ref(textureCoordinates)) |
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); |
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/* [combineIndexedArrays] */ |
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CORRADE_IGNORE_DEPRECATED_POP |
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} |
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#endif |
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{ |
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/* [compressIndices-offset] */ |
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Containers::ArrayView<const UnsignedInt> indices; |
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UnsignedInt offset = Math::min(indices); |
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Containers::Pair<Containers::Array<char>, MeshIndexType> compressed = |
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MeshTools::compressIndices(indices, offset); |
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// use `offset` to adjust vertex attribute offset … |
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/* [compressIndices-offset] */ |
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} |
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#ifdef MAGNUM_BUILD_DEPRECATED |
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{ |
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CORRADE_IGNORE_DEPRECATED_PUSH |
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/* [compressIndicesAs] */ |
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std::vector<UnsignedInt> indices; |
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Containers::Array<UnsignedShort> indexData = |
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MeshTools::compressIndicesAs<UnsignedShort>(indices); |
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/* [compressIndicesAs] */ |
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CORRADE_IGNORE_DEPRECATED_POP |
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} |
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#endif |
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{ |
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/* [generateFlatNormals] */ |
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Containers::ArrayView<UnsignedInt> indices; |
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Containers::ArrayView<Vector3> indexedPositions; |
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Containers::Array<Vector3> positions = |
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MeshTools::duplicate<UnsignedInt, Vector3>(indices, indexedPositions); |
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Containers::Array<Vector3> normals = |
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MeshTools::generateFlatNormals(positions); |
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/* [generateFlatNormals] */ |
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} |
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{ |
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/* [interleave2] */ |
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Containers::ArrayView<const Vector4> positions; |
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Containers::ArrayView<const UnsignedShort> weights; |
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Containers::ArrayView<const Color3ub> vertexColors; |
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auto data = MeshTools::interleave(positions, weights, 2, vertexColors, 1); |
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/* [interleave2] */ |
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} |
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{ |
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Trade::MeshData data{MeshPrimitive::Lines, 0}; |
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UnsignedInt vertexCount{}; |
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Containers::Array<char> indexData; |
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/* [interleavedLayout-extra] */ |
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Containers::ArrayView<const Trade::MeshAttributeData> attributes = |
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data.attributeData(); |
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/* Take just positions and normals and add a four-byte padding in between */ |
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Trade::MeshData layout = MeshTools::interleavedLayout( |
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Trade::MeshData{MeshPrimitive::Triangles, 0}, vertexCount, { |
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attributes[data.attributeId(Trade::MeshAttribute::Position)], |
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Trade::MeshAttributeData{4}, |
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attributes[data.attributeId(Trade::MeshAttribute::Normal)] |
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}); |
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/* [interleavedLayout-extra] */ |
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} |
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{ |
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Trade::MeshData data{MeshPrimitive::Lines, 0}; |
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Containers::ArrayView<Trade::MeshAttributeData> extraAttributes; |
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UnsignedInt vertexCount{}; |
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Containers::Array<char> indexData; |
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/* [interleavedLayout-indices] */ |
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Trade::MeshData layout = |
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MeshTools::interleavedLayout(data, vertexCount, extraAttributes); |
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Trade::MeshIndexData indices; |
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Trade::MeshData indexed{data.primitive(), |
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std::move(indexData), indices, |
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layout.releaseVertexData(), layout.releaseAttributeData()}; |
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/* [interleavedLayout-indices] */ |
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} |
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{ |
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/* [removeDuplicates] */ |
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Containers::ArrayView<Vector3i> data; |
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Containers::Pair<Containers::Array<UnsignedInt>, std::size_t> unique = |
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MeshTools::removeDuplicatesInPlace(Containers::arrayCast<2, char>(data)); |
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data = data.prefix(unique.second()); |
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/* [removeDuplicates] */ |
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} |
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#ifdef MAGNUM_BUILD_DEPRECATED |
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{ |
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CORRADE_IGNORE_DEPRECATED_PUSH |
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/* [removeDuplicates-multiple] */ |
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std::vector<Vector3> positions; |
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std::vector<Vector2> texCoords; |
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std::vector<UnsignedInt> positionIndices = MeshTools::removeDuplicates(positions); |
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std::vector<UnsignedInt> texCoordIndices = MeshTools::removeDuplicates(texCoords); |
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std::vector<UnsignedInt> indices = MeshTools::combineIndexedArrays( |
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std::make_pair(std::cref(positionIndices), std::ref(positions)), |
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std::make_pair(std::cref(texCoordIndices), std::ref(texCoords)) |
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); |
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/* [removeDuplicates-multiple] */ |
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CORRADE_IGNORE_DEPRECATED_POP |
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} |
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#endif |
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{ |
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/* [transformVectors] */ |
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std::vector<Vector3> vectors; |
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auto transformation = Quaternion::rotation(35.0_degf, Vector3::yAxis()); |
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MeshTools::transformVectorsInPlace(transformation, vectors); |
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/* [transformVectors] */ |
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} |
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{ |
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/* [transformPoints] */ |
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std::vector<Vector3> points; |
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auto transformation = |
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DualQuaternion::rotation(35.0_degf, Vector3::yAxis())* |
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DualQuaternion::translation({0.5f, -1.0f, 3.0f}); |
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MeshTools::transformPointsInPlace(transformation, points); |
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/* [transformPoints] */ |
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} |
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}
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