mirror of https://github.com/mosra/magnum.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
210 lines
6.6 KiB
210 lines
6.6 KiB
/* |
|
This file is part of Magnum. |
|
|
|
Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
|
Vladimír Vondruš <mosra@centrum.cz> |
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a |
|
copy of this software and associated documentation files (the "Software"), |
|
to deal in the Software without restriction, including without limitation |
|
the rights to use, copy, modify, merge, publish, distribute, sublicense, |
|
and/or sell copies of the Software, and to permit persons to whom the |
|
Software is furnished to do so, subject to the following conditions: |
|
|
|
The above copyright notice and this permission notice shall be included |
|
in all copies or substantial portions of the Software. |
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
|
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
|
DEALINGS IN THE SOFTWARE. |
|
*/ |
|
|
|
#include <tuple> |
|
#include <vector> |
|
|
|
#include "Magnum/Math/Color.h" |
|
#include "Magnum/Math/FunctionsBatch.h" |
|
#include "Magnum/MeshTools/CompressIndices.h" |
|
#include "Magnum/MeshTools/Concatenate.h" |
|
#include "Magnum/MeshTools/Duplicate.h" |
|
#include "Magnum/MeshTools/FlipNormals.h" |
|
#include "Magnum/MeshTools/GenerateNormals.h" |
|
#include "Magnum/MeshTools/Interleave.h" |
|
#include "Magnum/MeshTools/RemoveDuplicates.h" |
|
#include "Magnum/MeshTools/Transform.h" |
|
#include "Magnum/Primitives/Cube.h" |
|
#include "Magnum/Trade/MeshData.h" |
|
|
|
#ifdef MAGNUM_BUILD_DEPRECATED |
|
#define _MAGNUM_NO_DEPRECATED_COMBINEINDEXEDARRAYS |
|
#include "Magnum/MeshTools/CombineIndexedArrays.h" |
|
#endif |
|
|
|
using namespace Magnum; |
|
using namespace Magnum::Math::Literals; |
|
|
|
int main() { |
|
|
|
#ifdef MAGNUM_BUILD_DEPRECATED |
|
{ |
|
CORRADE_IGNORE_DEPRECATED_PUSH |
|
/* [combineIndexedArrays] */ |
|
std::vector<UnsignedInt> vertexIndices; |
|
std::vector<Vector3> positions; |
|
std::vector<UnsignedInt> normalTextureIndices; |
|
std::vector<Vector3> normals; |
|
std::vector<Vector2> textureCoordinates; |
|
|
|
std::vector<UnsignedInt> indices = MeshTools::combineIndexedArrays( |
|
std::make_pair(std::cref(vertexIndices), std::ref(positions)), |
|
std::make_pair(std::cref(normalTextureIndices), std::ref(normals)), |
|
std::make_pair(std::cref(normalTextureIndices), std::ref(textureCoordinates)) |
|
); |
|
/* [combineIndexedArrays] */ |
|
CORRADE_IGNORE_DEPRECATED_POP |
|
} |
|
#endif |
|
|
|
{ |
|
/* [compressIndices-offset] */ |
|
Containers::ArrayView<const UnsignedInt> indices; |
|
UnsignedInt offset = Math::min(indices); |
|
std::pair<Containers::Array<char>, MeshIndexType> result = |
|
MeshTools::compressIndices(indices, offset); |
|
|
|
// use `offset` to adjust vertex attribute offset … |
|
/* [compressIndices-offset] */ |
|
} |
|
|
|
{ |
|
/* [concatenate-make-mutable] */ |
|
/* Flip triangles on a cube primitive so it's counterclockwise from the inside |
|
in order to render a cube map */ |
|
Trade::MeshData mesh = MeshTools::concatenate(Primitives::cubeSolid()); |
|
MeshTools::flipFaceWindingInPlace(mesh.mutableIndices()); |
|
/* [concatenate-make-mutable] */ |
|
} |
|
|
|
#ifdef MAGNUM_BUILD_DEPRECATED |
|
{ |
|
CORRADE_IGNORE_DEPRECATED_PUSH |
|
/* [compressIndicesAs] */ |
|
std::vector<UnsignedInt> indices; |
|
Containers::Array<UnsignedShort> indexData = |
|
MeshTools::compressIndicesAs<UnsignedShort>(indices); |
|
/* [compressIndicesAs] */ |
|
CORRADE_IGNORE_DEPRECATED_POP |
|
} |
|
#endif |
|
|
|
{ |
|
/* [generateFlatNormals] */ |
|
Containers::ArrayView<UnsignedInt> indices; |
|
Containers::ArrayView<Vector3> indexedPositions; |
|
|
|
Containers::Array<Vector3> positions = |
|
MeshTools::duplicate<UnsignedInt, Vector3>(indices, indexedPositions); |
|
|
|
Containers::Array<Vector3> normals = |
|
MeshTools::generateFlatNormals(positions); |
|
/* [generateFlatNormals] */ |
|
} |
|
|
|
{ |
|
/* [interleave2] */ |
|
Containers::ArrayView<const Vector4> positions; |
|
Containers::ArrayView<const UnsignedShort> weights; |
|
Containers::ArrayView<const Color3ub> vertexColors; |
|
|
|
auto data = MeshTools::interleave(positions, weights, 2, vertexColors, 1); |
|
/* [interleave2] */ |
|
} |
|
|
|
{ |
|
Trade::MeshData data{MeshPrimitive::Lines, 0}; |
|
UnsignedInt vertexCount{}; |
|
Containers::Array<char> indexData; |
|
/* [interleavedLayout-extra] */ |
|
Containers::ArrayView<const Trade::MeshAttributeData> attributes = |
|
data.attributeData(); |
|
|
|
/* Take just positions and normals and add a four-byte padding in between */ |
|
Trade::MeshData layout = MeshTools::interleavedLayout( |
|
Trade::MeshData{MeshPrimitive::Triangles, 0}, vertexCount, { |
|
attributes[data.attributeId(Trade::MeshAttribute::Position)], |
|
Trade::MeshAttributeData{4}, |
|
attributes[data.attributeId(Trade::MeshAttribute::Normal)] |
|
}); |
|
/* [interleavedLayout-extra] */ |
|
} |
|
|
|
{ |
|
Trade::MeshData data{MeshPrimitive::Lines, 0}; |
|
Containers::ArrayView<Trade::MeshAttributeData> extraAttributes; |
|
UnsignedInt vertexCount{}; |
|
Containers::Array<char> indexData; |
|
/* [interleavedLayout-indices] */ |
|
Trade::MeshData layout = |
|
MeshTools::interleavedLayout(data, vertexCount, extraAttributes); |
|
|
|
Trade::MeshIndexData indices; |
|
Trade::MeshData indexed{data.primitive(), |
|
std::move(indexData), indices, |
|
layout.releaseVertexData(), layout.releaseAttributeData()}; |
|
/* [interleavedLayout-indices] */ |
|
} |
|
|
|
{ |
|
/* [removeDuplicates] */ |
|
Containers::ArrayView<Vector3i> data; |
|
|
|
std::size_t size; |
|
Containers::Array<UnsignedInt> indices; |
|
std::tie(indices, size) = MeshTools::removeDuplicatesInPlace( |
|
Containers::arrayCast<2, char>(data)); |
|
data = data.prefix(size); |
|
/* [removeDuplicates] */ |
|
} |
|
|
|
#ifdef MAGNUM_BUILD_DEPRECATED |
|
{ |
|
CORRADE_IGNORE_DEPRECATED_PUSH |
|
/* [removeDuplicates-multiple] */ |
|
std::vector<Vector3> positions; |
|
std::vector<Vector2> texCoords; |
|
|
|
std::vector<UnsignedInt> positionIndices = MeshTools::removeDuplicates(positions); |
|
std::vector<UnsignedInt> texCoordIndices = MeshTools::removeDuplicates(texCoords); |
|
|
|
std::vector<UnsignedInt> indices = MeshTools::combineIndexedArrays( |
|
std::make_pair(std::cref(positionIndices), std::ref(positions)), |
|
std::make_pair(std::cref(texCoordIndices), std::ref(texCoords)) |
|
); |
|
/* [removeDuplicates-multiple] */ |
|
CORRADE_IGNORE_DEPRECATED_POP |
|
} |
|
#endif |
|
|
|
{ |
|
/* [transformVectors] */ |
|
std::vector<Vector3> vectors; |
|
auto transformation = Quaternion::rotation(35.0_degf, Vector3::yAxis()); |
|
MeshTools::transformVectorsInPlace(transformation, vectors); |
|
/* [transformVectors] */ |
|
} |
|
|
|
{ |
|
/* [transformPoints] */ |
|
std::vector<Vector3> points; |
|
auto transformation = |
|
DualQuaternion::rotation(35.0_degf, Vector3::yAxis())* |
|
DualQuaternion::translation({0.5f, -1.0f, 3.0f}); |
|
MeshTools::transformPointsInPlace(transformation, points); |
|
/* [transformPoints] */ |
|
} |
|
|
|
}
|
|
|