compute_sharpness.h

/*
 * Copyright 2026 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
 
#pragma once
 
#include <lagrange/SurfaceMesh.h>
 
#include <optional>
 
namespace lagrange::subdivision {


struct SharpnessResults
{
    std::optional<AttributeId> normal_attr;

    std::optional<AttributeId> vertex_sharpness_attr;

    std::optional<AttributeId> edge_sharpness_attr;
};

struct SharpnessOptions
{
    std::string_view normal_attribute_name;

    std::optional<double> feature_angle_threshold;
};

template <typename Scalar, typename Index>
SharpnessResults compute_sharpness(
    SurfaceMesh<Scalar, Index>& mesh,
    const SharpnessOptions& options = {});

 
} // namespace lagrange::subdivision