茂之钳
44 lines
1.6 KiB
C++
44 lines
1.6 KiB
C++
#pragma once
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#include "vde/mesh/halfedge_mesh.h"
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namespace vde::mesh {
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using core::Point2D;
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using core::Point3D;
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using core::Vector3D;
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enum class SmoothMethod { Laplacian, Taubin, HCLaplacian, Bilateral };
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struct SmoothOptions {
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int iterations = 10;
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double lambda = 0.5; // Laplacian weight
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double mu = -0.53; // Taubin shrink (mu < -lambda for Taubin)
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// HC Laplacian parameters
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double hc_alpha = 0.0; // push-back strength (0 = default auto)
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double hc_beta = 0.5; // push-forward blend
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// Bilateral parameters
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double bilateral_sigma_c = 0.0; // spatial sigma (0 = auto from avg edge length)
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double bilateral_sigma_n = 0.3; // normal sigma (radians)
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int bilateral_iters = 5;
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SmoothMethod method = SmoothMethod::Laplacian;
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};
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/// Generic dispatcher — delegates to specific smooth functions
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HalfedgeMesh smooth_mesh(const HalfedgeMesh& mesh, const SmoothOptions& opts = {});
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/// Standard Laplacian smoothing
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HalfedgeMesh smooth_laplacian(const HalfedgeMesh& mesh, int iterations, double lambda);
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/// Taubin λ|μ smoothing (volume-preserving)
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HalfedgeMesh smooth_taubin(const HalfedgeMesh& mesh, int iterations, double lambda, double mu);
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/// HC Laplacian (Humphrey's Classes) — two-pass with push-back to preserve volume
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HalfedgeMesh smooth_hc_laplacian(const HalfedgeMesh& mesh, const SmoothOptions& opts = {});
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/// Bilateral mesh filtering — normal-weighted, preserves sharp features
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HalfedgeMesh smooth_bilateral(const HalfedgeMesh& mesh, const SmoothOptions& opts = {});
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} // namespace vde::mesh
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