茂之钳
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
#include "vde/sdf/sdf_primitives.h"
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#include "vde/sdf/sdf_operations.h"
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#include "vde/sdf/sdf_to_mesh.h"
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#include "vde/brep/modeling.h"
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#include "vde/mesh/marching_cubes.h"
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#include "vde/mesh/halfedge_mesh.h"
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#include "vde/foundation/io_gltf.h"
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#include <iostream>
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#include <cmath>
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int main() {
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// ── Pipeline 1: SDF → Mesh → GLB ──
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std::cout << "Pipeline 1: SDF → Mesh → GLB\n";
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// Build SDF expression: smooth union of sphere and box
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auto sphere_sdf = [](const vde::core::Point3D& p) {
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return vde::sdf::sphere(p, 1.5);
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};
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auto combined = [&](double x, double y, double z) -> double {
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vde::core::Point3D p(x, y, z);
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double d_sphere = sphere_sdf(p);
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double d_box = vde::sdf::box(p, vde::core::Point3D(1.0, 1.0, 1.0));
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return vde::sdf::op_smooth_union(d_sphere, d_box, 0.3);
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};
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// Marching cubes → MCMesh
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double iso = 0.0;
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vde::core::Point3D bmin(-3.0, -3.0, -3.0);
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vde::core::Point3D bmax(3.0, 3.0, 3.0);
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int resolution = 64;
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auto mc_result = vde::mesh::marching_cubes(combined, iso, bmin, bmax, resolution);
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// Build HalfedgeMesh from marching cubes result
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vde::mesh::HalfedgeMesh sdf_mesh;
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sdf_mesh.build_from_triangles(mc_result.vertices, mc_result.triangles);
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// Export
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vde::foundation::GltfOptions opt;
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opt.binary = true;
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opt.include_normals = true;
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std::string sdf_out = "output_sdf_shape.glb";
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if (vde::foundation::write_gltf(sdf_out, sdf_mesh, opt)) {
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std::cout << " → " << sdf_out << " written ("
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<< sdf_mesh.num_vertices() << " vertices, "
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<< sdf_mesh.num_faces() << " faces)\n";
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} else {
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std::cerr << " ✗ Failed to write " << sdf_out << "\n";
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}
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// ── Pipeline 2: B-Rep → Tessellate → GLB ──
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std::cout << "\nPipeline 2: B-Rep → Tessellate → GLB\n";
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auto box_b = vde::brep::make_box(2.0, 2.0, 2.0);
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auto shelled = vde::brep::shell(box_b, -1, 0.15); // closed shell, 0.15 thickness
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std::string brep_out = "output_brep_shell.glb";
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if (vde::foundation::write_brep_gltf(brep_out, shelled, 32)) {
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std::cout << " → " << brep_out << " written\n";
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} else {
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std::cerr << " ✗ Failed to write " << brep_out << "\n";
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}
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std::cout << "\nDone! Open .glb files in any 3D viewer.\n";
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return 0;
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}
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