PrimitivesExample::PrimitivesExample(const Arguments& arguments):
Platform::Application{arguments, Configuration{}.setTitle("Magnum Primitives Example")}
{
GL::Renderer::enable(GL::Renderer::Feature::DepthTest);
GL::Renderer::enable(GL::Renderer::Feature::FaceCulling);
const Trade::MeshData3D cube = Primitives::cubeSolid();
_vertexBuffer.setData(MeshTools::interleave(cube.positions(0), cube.normals(0)));
Containers::Array<char> indexData;
MeshIndexType indexType;
UnsignedInt indexStart, indexEnd;
std::tie(indexData, indexType, indexStart, indexEnd) =
MeshTools::compressIndices(cube.indices());
_indexBuffer.setData(indexData);
_mesh.setPrimitive(cube.primitive())
.setCount(cube.indices().size())
.addVertexBuffer(_vertexBuffer, 0, Shaders::Phong::Position{},
Shaders::Phong::Normal{})
.setIndexBuffer(_indexBuffer, 0, indexType, indexStart, indexEnd);
_transformation =
Matrix4::rotationX(30.0_degf)*Matrix4::rotationY(40.0_degf);
_projection =
Matrix4::perspectiveProjection(
35.0_degf, Vector2{windowSize()}.aspectRatio(), 0.01f, 100.0f)*
Matrix4::translation(Vector3::zAxis(-10.0f));
_color = Color3::fromHsv({35.0_degf, 1.0f, 1.0f});
}
void UVSphereTest::withoutTextureCoords() {
Trade::MeshData3D sphere = UVSphere::solid(3, 3);
CORRADE_COMPARE_AS(*sphere.positions(0), (std::vector<Vector3>{
{0.0f, -1.0f, 0.0f},
{0.0f, -0.5f, 0.866025f},
{0.75f, -0.5f, -0.433013f},
{-0.75f, -0.5f, -0.433013f},
{0, 0.5f, 0.866025f},
{0.75f, 0.5f, -0.433013f},
{-0.75f, 0.5f, -0.433013f},
{0.0f, 1.0f, 0.0f}
}), TestSuite::Compare::Container);
CORRADE_COMPARE_AS(*sphere.normals(0), (std::vector<Vector3>{
{0.0f, -1.0f, 0.0f},
{0.0f, -0.5f, 0.866025f},
{0.75f, -0.5f, -0.433013f},
{-0.75f, -0.5f, -0.433013f},
{0, 0.5f, 0.866025f},
{0.75f, 0.5f, -0.433013f},
{-0.75f, 0.5f, -0.433013f},
{0.0f, 1.0f, 0.0f}
}), TestSuite::Compare::Container);
CORRADE_COMPARE_AS(*sphere.indices(), (std::vector<UnsignedInt>{
0, 2, 1, 0, 3, 2, 0, 1, 3,
1, 2, 5, 1, 5, 4, 2, 3, 6, 2, 6, 5, 3, 1, 4, 3, 4, 6,
4, 5, 7, 5, 6, 7, 6, 4, 7
}), TestSuite::Compare::Container);
}
void CylinderTest::withoutAnything() {
Trade::MeshData3D cylinder = Cylinder::solid(2, 3, 3.0f);
CORRADE_COMPARE_AS(*cylinder.positions(0), (std::vector<Vector3>{
{0.0f, -1.5f, 1.0f},
{0.866025f, -1.5f, -0.5f},
{-0.866025f, -1.5f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 1.5f, 1.0f},
{0.866025f, 1.5f, -0.5f},
{-0.866025f, 1.5f, -0.5f}
}), Container);
CORRADE_COMPARE_AS(*cylinder.normals(0), (std::vector<Vector3>{
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f}
}), Container);
CORRADE_COMPARE_AS(*cylinder.indices(), (std::vector<UnsignedInt>{
0, 1, 4, 0, 4, 3, 1, 2, 5, 1, 5, 4, 2, 0, 3, 2, 3, 5,
3, 4, 7, 3, 7, 6, 4, 5, 8, 4, 8, 7, 5, 3, 6, 5, 6, 8
}), Container);
}
void CylinderTest::withTextureCoordsAndCaps() {
Trade::MeshData3D cylinder = Cylinder::solid(2, 3, 3.0f, Cylinder::Flag::GenerateTextureCoords|Cylinder::Flag::CapEnds);
CORRADE_COMPARE_AS(*cylinder.positions(0), (std::vector<Vector3>{
{0.0f, -1.5f, 0.0f},
{0.0f, -1.5f, 1.0f},
{0.866025f, -1.5f, -0.5f},
{-0.866025f, -1.5f, -0.5f},
{0.0f, -1.5f, 1.0f},
{0.0f, -1.5f, 1.0f},
{0.866025f, -1.5f, -0.5f},
{-0.866025f, -1.5f, -0.5f},
{0.0f, -1.5f, 1.0f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.0f, 1.5f, 1.0f},
{0.866025f, 1.5f, -0.5f},
{-0.866025f, 1.5f, -0.5f},
{0.0f, 1.5f, 1.0f},
{0.0f, 1.5f, 1.0f},
{0.866025f, 1.5f, -0.5f},
{-0.866025f, 1.5f, -0.5f},
{0.0f, 1.5f, 1.0f},
{0.0f, 1.5f, 0.0f}
}), Container);
CORRADE_COMPARE_AS(*cylinder.normals(0), (std::vector<Vector3>{
{0.0f, -1.0f, 0.0f},
{0.0f, -1.0f, 0.0f},
{0.0f, -1.0f, 0.0f},
{0.0f, -1.0f, 0.0f},
{0.0f, -1.0f, 0.0f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.0f, 1.0f, 0.0f},
{0.0f, 1.0f, 0.0f},
{0.0f, 1.0f, 0.0f},
{0.0f, 1.0f, 0.0f},
{0.0f, 1.0f, 0.0f},
}), Container);
CORRADE_COMPARE_AS(*cylinder.textureCoords2D(0), (std::vector<Vector2>{
{0.5f, 0.0f},
{0.0f, 0.2f},
{0.333333f, 0.2f},
{0.666667f, 0.2f},
{1.0f, 0.2f},
{0.0f, 0.2f},
{0.333333f, 0.2f},
{0.666667f, 0.2f},
{1.0f, 0.2f},
{0.0f, 0.5f},
{0.333333f, 0.5f},
{0.666667f, 0.5f},
{1.0f, 0.5f},
{0.0f, 0.8f},
{0.333333f, 0.8f},
{0.666667f, 0.8f},
{1.0f, 0.8f},
{0.0f, 0.8f},
{0.333333f, 0.8f},
{0.666667f, 0.8f},
{1.0f, 0.8f},
{0.5f, 1.0f}
}), Container);
CORRADE_COMPARE_AS(*cylinder.indices(), (std::vector<UnsignedInt>{
0, 2, 1, 0, 3, 2, 0, 4, 3,
1, 2, 6, 1, 6, 5, 2, 3, 7, 2, 7, 6, 3, 4, 8, 3, 8, 7,
5, 6, 10, 5, 10, 9, 6, 7, 11, 6, 11, 10, 7, 8, 12, 7,
12, 11, 17, 18, 21, 18, 19, 21, 19, 20, 21
}), Container);
}
MotionBlurExample::MotionBlurExample(const Arguments& arguments): Platform::Application(arguments, Configuration().setTitle("Magnum Motion Blur Example")) {
(cameraObject = new Object3D(&scene))
->translate(Vector3::zAxis(3.0f));
(camera = new MotionBlurCamera(*cameraObject))
->setAspectRatioPolicy(SceneGraph::AspectRatioPolicy::Extend)
.setProjectionMatrix(Matrix4::perspectiveProjection(Deg(35.0f), 1.0f, 0.001f, 100))
.setViewport(GL::defaultFramebuffer.viewport().size());
GL::Renderer::setClearColor({0.1f, 0.1f, 0.1f});
GL::Renderer::enable(GL::Renderer::Feature::DepthTest);
GL::Renderer::enable(GL::Renderer::Feature::FaceCulling);
const Trade::MeshData3D data = Primitives::icosphereSolid(3);
buffer.setData(MeshTools::interleave(data.positions(0), data.normals(0)), GL::BufferUsage::StaticDraw);
Containers::Array<char> indexData;
MeshIndexType indexType;
UnsignedInt indexStart, indexEnd;
std::tie(indexData, indexType, indexStart, indexEnd) = MeshTools::compressIndices(data.indices());
indexBuffer.setData(indexData, GL::BufferUsage::StaticDraw);
mesh.setPrimitive(data.primitive())
.setCount(data.indices().size())
.addVertexBuffer(buffer, 0, Shaders::Phong::Position{}, Shaders::Phong::Normal{})
.setIndexBuffer(indexBuffer, 0, indexType, indexStart, indexEnd);
/* Add spheres to the scene */
new Icosphere(&mesh, &shader, {1.0f, 1.0f, 0.0f}, &scene, &drawables);
spheres[0] = new Object3D(&scene);
(new Icosphere(&mesh, &shader, {1.0f, 0.0f, 0.0f}, spheres[0], &drawables))
->translate(Vector3::yAxis(0.25f));
(new Icosphere(&mesh, &shader, {1.0f, 0.0f, 0.0f}, spheres[0], &drawables))
->translate(Vector3::yAxis(0.25f))
.rotateZ(Deg(120.0f));
(new Icosphere(&mesh, &shader, {1.0f, 0.0f, 0.0f}, spheres[0], &drawables))
->translate(Vector3::yAxis(0.25f))
.rotateZ(Deg(240.0f));
spheres[1] = new Object3D(&scene);
(new Icosphere(&mesh, &shader, {0.0f, 1.0f, 0.0f}, spheres[1], &drawables))
->translate(Vector3::yAxis(0.50f));
(new Icosphere(&mesh, &shader, {0.0f, 1.0f, 0.0f}, spheres[1], &drawables))
->translate(Vector3::yAxis(0.50f))
.rotateZ(Deg(120.0f));
(new Icosphere(&mesh, &shader, {0.0f, 1.0f, 0.0f}, spheres[1], &drawables))
->translate(Vector3::yAxis(0.50f))
.rotateZ(Deg(240.0f));
spheres[2] = new Object3D(&scene);
(new Icosphere(&mesh, &shader, {0.0f, 0.0f, 1.0f}, spheres[2], &drawables))
->translate(Vector3::yAxis(0.75f));
(new Icosphere(&mesh, &shader, {0.0f, 0.0f, 1.0f}, spheres[2], &drawables))
->translate(Vector3::yAxis(0.75f))
.rotateZ(Deg(120.0f));
(new Icosphere(&mesh, &shader, {0.0f, 0.0f, 1.0f}, spheres[2], &drawables))
->translate(Vector3::yAxis(0.75f))
.rotateZ(Deg(240.0f));
setSwapInterval(16);
setMinimalLoopPeriod(40);
}
void CapsuleTest::solid3DWithoutTextureCoords() {
Trade::MeshData3D capsule = Capsule3D::solid(2, 4, 3, 0.5f);
CORRADE_COMPARE_AS(capsule.positions(0), (std::vector<Vector3>{
{0.0f, -1.5f, 0.0f},
{0.0f, -1.20711f, 0.707107f},
{0.612372f, -1.20711f, -0.353553f},
{-0.612373f, -1.20711f, -0.353553f},
{0.0f, -0.5f, 1.0f},
{0.866025f, -0.5f, -0.5f},
{-0.866025f, -0.5f, -0.5f},
{0.0f, -0.25f, 1.0f},
{0.866025f, -0.25f, -0.5f},
{-0.866025f, -0.25f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.25f, 1.0f},
{0.866025f, 0.25f, -0.5f},
{-0.866025f, 0.25f, -0.5f},
{0.0f, 0.5f, 1.0f},
{0.866025f, 0.5f, -0.5f},
{-0.866025f, 0.5f, -0.5f},
{0.0f, 1.20711f, 0.707107f},
{0.612372f, 1.20711f, -0.353553f},
{-0.612372f, 1.20711f, -0.353553f},
{0.0f, 1.5f, 0.0f}
}), TestSuite::Compare::Container);
CORRADE_COMPARE_AS(capsule.normals(0), (std::vector<Vector3>{
{0.0f, -1.0f, 0.0f},
{0.0f, -0.707107f, 0.707107f},
{0.612372f, -0.707107f, -0.353553f},
{-0.612373f, -0.707107f, -0.353553f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.0f, 1.0f},
{0.866025f, 0.0f, -0.5f},
{-0.866025f, 0.0f, -0.5f},
{0.0f, 0.707107f, 0.707107f},
{0.612372f, 0.707107f, -0.353553f},
{-0.612372f, 0.707107f, -0.353553f},
{0.0f, 1.0f, 0.0f}
}), TestSuite::Compare::Container);
CORRADE_COMPARE_AS(capsule.indices(), (std::vector<UnsignedInt>{
0, 2, 1, 0, 3, 2, 0, 1, 3,
1, 2, 5, 1, 5, 4, 2, 3, 6, 2, 6, 5, 3, 1, 4, 3, 4, 6,
4, 5, 8, 4, 8, 7, 5, 6, 9, 5, 9, 8, 6, 4, 7, 6, 7, 9,
7, 8, 11, 7, 11, 10, 8, 9, 12, 8, 12, 11, 9, 7, 10, 9, 10, 12,
10, 11, 14, 10, 14, 13, 11, 12, 15, 11, 15, 14, 12, 10, 13, 12, 13, 15,
13, 14, 17, 13, 17, 16, 14, 15, 18, 14, 18, 17, 15, 13, 16, 15, 16, 18,
16, 17, 20, 16, 20, 19, 17, 18, 21, 17, 21, 20, 18, 16, 19, 18, 19, 21,
19, 20, 22, 20, 21, 22, 21, 19, 22
}), TestSuite::Compare::Container);
}
std::tuple<Mesh, std::unique_ptr<Buffer>, std::unique_ptr<Buffer>> compile(const Trade::MeshData3D& meshData, const BufferUsage usage) {
Mesh mesh;
mesh.setPrimitive(meshData.primitive());
/* Decide about stride and offsets */
UnsignedInt stride = sizeof(Shaders::Generic3D::Position::Type);
const UnsignedInt normalOffset = sizeof(Shaders::Generic3D::Position::Type);
UnsignedInt textureCoordsOffset = sizeof(Shaders::Generic3D::Position::Type);
if(meshData.hasNormals()) {
stride += sizeof(Shaders::Generic3D::Normal::Type);
textureCoordsOffset += sizeof(Shaders::Generic3D::Normal::Type);
}
if(meshData.hasTextureCoords2D())
stride += sizeof(Shaders::Generic3D::TextureCoordinates::Type);
/* Create vertex buffer */
std::unique_ptr<Buffer> vertexBuffer{new Buffer{Buffer::TargetHint::Array}};
/* Interleave positions */
Containers::Array<char> data = MeshTools::interleave(
meshData.positions(0),
stride - sizeof(Shaders::Generic3D::Position::Type));
mesh.addVertexBuffer(*vertexBuffer, 0,
Shaders::Generic3D::Position(),
stride - sizeof(Shaders::Generic3D::Position::Type));
/* Add also normals, if present */
if(meshData.hasNormals()) {
MeshTools::interleaveInto(data,
normalOffset,
meshData.normals(0),
stride - normalOffset - sizeof(Shaders::Generic3D::Normal::Type));
mesh.addVertexBuffer(*vertexBuffer, 0,
normalOffset,
Shaders::Generic3D::Normal(),
stride - normalOffset - sizeof(Shaders::Generic3D::Normal::Type));
}
/* Add also texture coordinates, if present */
if(meshData.hasTextureCoords2D()) {
MeshTools::interleaveInto(data,
textureCoordsOffset,
meshData.textureCoords2D(0),
stride - textureCoordsOffset - sizeof(Shaders::Generic3D::TextureCoordinates::Type));
mesh.addVertexBuffer(*vertexBuffer, 0,
textureCoordsOffset,
Shaders::Generic3D::TextureCoordinates(),
stride - textureCoordsOffset - sizeof(Shaders::Generic3D::TextureCoordinates::Type));
}
/* Fill vertex buffer with interleaved data */
vertexBuffer->setData(data, usage);
/* If indexed, fill index buffer and configure indexed mesh */
std::unique_ptr<Buffer> indexBuffer;
if(meshData.isIndexed()) {
Containers::Array<char> indexData;
Mesh::IndexType indexType;
UnsignedInt indexStart, indexEnd;
std::tie(indexData, indexType, indexStart, indexEnd) = MeshTools::compressIndices(meshData.indices());
indexBuffer.reset(new Buffer{Buffer::TargetHint::ElementArray});
indexBuffer->setData(indexData, usage);
mesh.setCount(meshData.indices().size())
.setIndexBuffer(*indexBuffer, 0, indexType, indexStart, indexEnd);
/* Else set vertex count */
} else mesh.setCount(meshData.positions(0).size());
return std::make_tuple(std::move(mesh), std::move(vertexBuffer), std::move(indexBuffer));
}